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1. JEMSTAR METER DIRECT PC CONNECTION CROSS OVER ETHERNET ETHERNET RJ45 OPTION TEMSTAR CABLE le Tx BLACK a METER Tx RED d E Rx GREEN gt Rx YELLOW x 509 INS JEMSTAR METER 59 JEMStar User Manual Switchboard housing Ethernet Switchboard Interface Board The Switchboard Interface Board provides Input Output Power and Communications connections to the terminal block on the switchboard version of the meter Interface Board location For field upgrades 1 Remove the two 6 screws 2 Remove the connectors 10 position ribbon 26 position ribbon 2 position power and RJ 11 for modem RS232 orEthernet from the interface board 3 Plug the connectors into the new interface board 4 Install 6 screws 60 Chapter 2 Installation For all switchboard meters except those with Ethernet Communications option there are no user settings on this board If the Ethernet option is installed the user must select the terminals to be used for the Ethernet receive signals The selection is made by changing jumpers J10 through J15 on the Ethernet Interface Board The Ethernet receive Rx and terminals depend on the type of input output board intalled Ethernet Connections for standard DI DO board
2. Terminal Signal 21 XMT RCV 22 XMT RCV 4000 Ft Max gt METER 1 METER 31 METER 32 RS 485 MASTER z ESIE ABE J 1200 TERMINATION RESISTOR RS 485 CONNECTION DIAGRAM 49 JEMStar User Manual Modem JEMStar can be optionally equipped with an internal modem The port is configurable via JEMWare for any communication address supported by the meter and can be set for 300 to 14400 bits per second custom initialization string can also be configured to adapt the modem to specific conditions see Appendix A for AT command codes Modem tip and ring connections for the S base and A base models are made using a standard four wire RJ 11 phone jack For Switchboard style meters the connections are provided on rear mounted terminal blocks Switchboard Modem Connections Terminal Modem Connection Tip 1 Ring Answer Modem The JEMStar internal modem can be programmed to determine the number of rings required before answering An answer window which restricts the modem to answering only during certain times of the day is also programmable The modem will connect at any baud rate up to 14400 bps The modem can be configured for two different answering periods number of rings per day When selected it will answer after selected
3. 65595 1 25 JEMStar User Manual WIRING DIAGRAMS Form 5S 2 Element Wire Delta B or N 3 Phase 3 Wire Delta mz r Front View 65056 002A 26 mz r Form 65 2 Element 4 Wire Wye Front View Chapter 2 Installation 3 Phase 4 Wire Wye 65060 002 27 JEMStar User Manual Form 95 3 Element 4 Wire Wye 3 Phase 4 Wire Wye m 2 r Front View 28 mzz r Chapter 2 Installation Form 8S 3 Element 4Wire Delta A B 3 PHASE 4 WIRE DELTA T NEN L i Front View 29 JEMStar User Manual FORM 5A 2 ELEMENT 3 WIRE DELTA B ORN 3 PHASE 3 WIRE DELTA mz U gt Or FRONT VIEW 30 Chapter 2 Installation FORM 6A 21 2 ELEMENT 4 WIRE WYE tn 3 PHASE 4 WIRE WYE 230 n FRONT VIEW 3l JEMStar User Manual FORM 8A 9A 3 ELEMENT 4 WIRE WYE B 3 PHASE 4 WIRE WYE octa FRONT VIEW 32 Chapter 2 Installation FORM 8A 9A 3 ELEMENT 4 WIRE DELTA Lu lt A e 4 WIRE DELTA 230 n FRONT VIEW 33 JEMStar User Manual 5R Switchboard 2 Element 3 Wire Delta C A LINE A B or 3 Phase 3 Wire Delta Aux Power can be 55 530 VAC or 90 250 VDC Both are non polarity sensitive Fu m Shorting Contacts 65076 2C A B C LOAD Back View 34 Chapter 2 Installation 6 Switchboard 2
4. 1 No Object function code only 23 delaymeas Note 1 For static non change event objects qualifiers 17 or 28 are only responded when a request is sent with qualifiers 17 or 28 respectively Otherwise static object requests sent with qualifiers 00 01 06 07 or 08 will be responded with qualifiers 00 or 01 For change event objects qualifiers 17 or 28 are always responded Note 2 A cold restart is implemented as a warm restart the JEMStar meter is not restarted but the DNP process is restarted Point List The tables in the following sections identify all the individual data points provided by the implementation of DNP 3 0 in the JEMStar meter Binary Input Points The Binary input points represent such things as e Contact input status e Threshold alarm conditions e Site monitor alarm conditions e Phase potential status JEMStar may be configured with up to 40 Binary Input Points in DNP You may assign any of the following Binary Inputs to any Binary Input Point D 5 JEMStar User Manual Contact Input 1 status Contact Input 2 status Voltages out of sequence alarm Neutral over current alarm Neutral current swell alarm Phase C under current alarm Phase C over current alarm Phase C power reversed alarm Phase C PF high alarm Phase C PF low alarm Phase C voltage sag alarm Phase C under voltage alarm Phase C voltage swell alarm Phase C over voltage alarm Phase B under current
5. esses 66 Navigating Display M CHUS eee 67 Register Display Modes sie 69 Display Format and 71 Changing MN 72 Display Meles 73 VRIR 73 Service DRESS 73 Demands tery 73 HS 74 Health Status dann rper Rete PETS 75 Interpreting Status Register Values in the JEMStar 76 Comm nication SE 78 78 iiM 79 Contact Input OP 79 AMAL ODS nad naa innan 80 teed 80 CAUTION 81 Test Mode AS 81 Registration Adjustment eene eren ena reae ase neuen eau a ena Reda rn PURA 8l Test Modeste tetro rtt ett CA 83 Enter Test Mode 83 Exit Test snare 63 Navigating in Test Mode er 84 JEMStar Test Pulse Output itte e t n o 86 sch ccccssccscesvecsieatccscanssuaceusdsdesssesdcessduusausedussuadduesbcedsdeusdessuus dashsudsdusedessiessoeusccssuuscsbas 87 JEMS tat SeEVICID s ach GAG hal e 88 Socket base meters S and A base rrrnrrrrrnnnrrrrronnnrrrrennnrrrrrrnnrrrrrnnnnrrerennnrressnnnnrnsssnnnnn 88 MN 90 Serviceable EO
6. Rear Interface Terminals Signal Jumper 1 Tx 2 Tx 9 Dout4 Rx J15 10 Dout4 Rx J14 15 Doutl Rx J13 16 Doutl Rx J12 17 Din2 Rx 18 Din2 110 Ethernet Connections for 5 KYZ board Rear Interface Terminals Signal Jumper 1 Tx 2 Tx 15 YS J13 16 5 Rx J12 17 Din2 Rx J11 18 Din2 Rx 110 Ethernet Interface Board layout Set jumpers J10 through J15 Select only one pair of connections for Rx and Rx 61 JEMStar User Manual A cable is provided for connecting the rear terminal block to an Ethernet connection The cable colors are as follows Wire Connections Signal Color Pin Number Tx Black 1 Tx Red 2 Rx Green 3 Rx Yellow 6 WORK Yad RJ45 Tx BLACK be e 7 Rx GREEN Rx YELLOW SWITCHBOARD ETHERNET WIRING Rx and Rx locations are configurable Rear View 62 METER OPERATION METER NAMEPLATE AND USER INTERFACE Meter Nameplate The meter s nameplate provides general information about the meter including model number form class voltage frequency wiring configuration 3 Wire or 4 Wire test amps and the K test pulse constant in WH count There is also an area for the user to write in the CTR current transformer ratio VTR voltage transformer ratio and a multiply by field
7. Number 3 Clear Data Erase Registers amp Load Profile retain Configuration try to retain Event Logs 6 Change End Enter or Exit Test Mode Device Mode 7 Clear Standard Clear Health Check and other status flags Status Flags 9 Remote Reset Billing Period Reset Self Read Season Change and new Season not supported in this procedure Set Time and Date 10 Set Date and or Time 18 Log In Establish a user session 19 Log Out End a user session 4 Appendix F ANSI Tables Communication No Write Limiting Limiting 12 Unit of Measure R 13 Demand Control Demand interval subinterval and related info R 14 Data Control Data source selections R Constants R Source Definition o O Table Title Description Read No Write 20 Dimension Maximum dimensions of measured data registers Register Limiting 21 Actual Register Actual function values for registers R D R Data Selection Grouped lists of source indices into Table 16 23 Current Register Current Register Data R Data 24 Previous Season Register Data as of most recent Season Change R Data 25 Previous Demand Register Data as of most recent Demand Reset R Reset Data 26 Self Read Data Register Data as of most recent Self Read event R DATA Present Register Lists of source indices into Table 16 Selection 28 Present Register Present demand and values selected by Table 27 Data 29 u
8. command line may include multiple commands The modem executes the commands in the sequence they appear in the command line Spaces inserted to improve legibility do not fill space in the command buffer carriage return terminates the command line and causes the commands to be executed Register 3 allows the user to select character other than carriage return to terminate the command line Command Buffer The command buffer holds 40 characters including the AT prefix If it overflows the modem issues an ERROR result code and commands are not executed Command Line Editing backspace can be used to edit the command any time before it is executed The backspace character Control and H simultaneously on some systems erases the previous character in the command line Any character except for the A and T can be erased Register S5 allows the user to select a character other than a backspace to edit the command line Re Execute Last Command The A command causes the modem to re execute the command line stored in the command buffer This is the only command that does not require the AT prefix Omitted Parameters Most commands include a parameter which determines the command function When the parameter is omitted from the command string it is assumed to be a 0 Escape Characters A three character escape sequence entered while in data mode will switch the modem into command mode while remaining on
9. Class 2 Input Current Accuracy PF 0 Accuracy PF 0 5 lag 0 1to2A 0 25 RD 0 25 RD 0 05 to 0 1 0 25 RD 0 35 RD 0 025 to 0 05 A 0 35 RD 0 55 RD 0 01 to 0 025 A 0 45 RD 0 65 RD Instantaneous VA phase polyphase total Class 2 Input Current Accuracy PF 1 Accuracy PFz0 5 lag 0 1to2A 0 25 RD 0 25 RD 0 05 to 0 1 0 25 RD 0 35 RD 0 025 to 0 05 A 0 35 RD 0 55 RD 0 01 to 0 025 A 0 45 RD 0 65 RD JEMStar User Manual Class 2 10 20 Instantaneous Volts Class 2 Class 10 Class 20 per phase 0 15 RD 0 15 RD 0 15 RD polyphase total Class 2 Class 10 Class 20 Instantaneous Amps 0 05 RD 0 05 RD 0 05 RD per phase 0 025 Iclass 0 05 Iclass 0 025 Iclass polyphase total 0 4 RD 0 4 RD 0 4 RD 0 25 gt 2 0 0 25 gt 10 0 25A gt 20A Instantaneous Volts Class 2 Class 10 Class 20 per phase 0 2 96 RD 0 2 96 RD 0 2 RD Instantaneous Amps Class 2 Class 10 Class 20 per phase 0 2 RD 0 2 RD 0 2 RD polyphase total 0 005 Iclass 0 005 Iclass 0 005 Iclass Volts Hours Class 2 Class 10 Class 20 per phase 0 2 RD 0 2 RD 0 2 RD Class 2 Class 10 Class 20 Ak Input Current Input Current Input Current Accuracy polyphase total 0 1A 102A 1Ato 10A 1Ato20A 0 3 RD 0 05 A to 0 1 0 5 Ato1A
10. F 1 JEMStar User Manual COMMUNICATION METHODS Three related ANSI Standards define the protocols for transmitting ANSI Tables over various communication channels The JEMStar meter is fully compliant with all communication types e ANSI C12 18 1996 Protocol Specification for ANSI Type 2 Optical Port e ANSI C12 21 1999 Protocol Specification for Telephone MODEM Communication e ANSI C12 22 Protocol Specification for Interfacing to Data Communication Networks unapproved draft ANSI Type 2 Optical Port Protocol C12 18 ANSI C12 18 defines the physical structure and dynamic processes required to send and receive ANSI Data Tables via an optical communications interface The Optical Port Protocol describes how to establish a connection with the meter negotiate communication parameters establish user identity and privileges perform various functions and send and receive data tables Since the Optical Port cannot support multiple end devices on a single connection it makes no provision for unique device addresses ANSI Telephone Modem Protocol C12 21 ANSI C12 21 defines the dynamic processes required to send and receive ANSI Data Tables via a dial up modem connection C12 21 does not define the process for establishing a modem connection it picks up responsibility for communication after the modem connection is established The Telephone Modem Protocol describes how to negotiate communication parameters establish
11. Select 6 digit or 8 digit main display with leading zeroes or leading blanks Time in hours minutes Subinterval Time in hours minutes XX XX XX 24 hour format Battery Status XX XX XX format configured in JEMWare Warning Configuration OK Error Site Monitor Normal Alarm Threshold 1 Normal Alarm Threshold 2 Normal Alarm Threshold 3 Normal Alarm Threshold 4 Normal Alarm lt Decimal address gt 300 1200 2400 9600 19200 Binary DNP Modbus ANSI Tables Type RS232 RS485 Address lt Decimal address gt Not Installed Baud 300 1200 2400 9600 19200 38400 Not Installed Protocol JEM 2B DNP Modbus RTU Modbus ASCII ANSI Tables Not Installed RTS ON time Time in mSec between RTS ON and Tx start RTS OFF time Time in mSec between Tx end and RTS OFF Turnaround Time in mSec between Tx end and Rx start RS485 only Type RS232 RS485 Modem Address Decimal address gt Not Installed Baud 300 1200 2400 9600 19200 38400 Not Installed Protocol JEM 2B DNP Modbus RTU Modbus ASCII ANSI Tables Not Installed RTS ON time RTS OFF time
12. 98 ADVANCED FEATURES TIME OF USE JEMStar maintains Time of Use information for Consumption Average Peak Demand Time of Peak Demand Coincident Demand and Coincident PF registers The meter can differentiate among up to 9 possible TOU rates with registers for each rate as configured by the user JEMStar can have up to 8 rate changes per day Each rate change is configured for the time of the change resolved to I minute and the rate code A H or Total Midnight is always assumed to be a rate change The user must define the rate to begin at midnight of each day midnight counts toward the limit of 8 changes per day JEMStar will recognize up to 9 day types per season each day of the week Sunday through Saturday plus two Holiday types Type 1 and Type 2 rate change schedule must be defined for each day type A given day is recognized as a particular day of the week based on the JEMStar internal clock and calendar unless that date is listed in the Holiday List Any date in the Holiday List must be identified as a Type I or Type 2 Holiday JEMStar can store up to 200 holidays in the Holiday List JEMStar is configurable for up to 4 season changes per year The date month day and year of each season start along with an indication of the season Season 1 Season 2 Season 3 or Season 4 that starts on that date is stored in the Season List The Season List will hold up to 80 Season Start dates 4 per ye
13. Appendix D DNP Serial Communications REQUEST OBJECT Library will parse Function Qualifier Codes 32 Bit Analog Input without Flag 00 01 start stop range or all 07 O8 limited qty 17 28 index 00 01 start stop O6 no range or all 07 O8 limited qty 17 28 index 00 01 start stop O6 no range or all 07 O8 limited qty 17 28 index 00 01 start stop range or all 07 limited qtyz1 08 limited qty 17 28 index short floating point read Time and Date read 1 Time and Date 1 2 read write read 06 no range or all Ed Class 0 1 2 and 3 Data 2 Class 1 Data range or all range or all 07 O8 limited qty 3 Class 2 Data 1 read range or all 07 O8 limited qty range or all 07 O8 limited qty KJ R Internal Indications 00 start stop index must 77 No Object function code only See Note 3 No Object function code only 4 warm restart RESPONSE Library will respond with Function Codes dec 129 response 129 response 129 response 129 response Qualifier Codes hex 00 01 start stop 17 28 index see note 2 00 01 start stop 17 28 index see note 2 00 01 start stop 17 28 index see note 2 00 01 start stop 17 28 index see note 2 129 response 07 limited qty
14. Element 4 Wire Wye LINE C A BC B 3 Phase L 4 Wire Wye Aux Power can be 55 530 VAC or 90 250 VDC Both are non polarity sensitive 15 B 6 b EE L 1 1 TT Shorting Contacts TL 65078 003A Back View LOAD 35 JEMStar User Manual 9R Switchboard 3 Element 4 Wire Wye LINE AB B 3 Phase 4 Wire Wye Aux Power can be 55 530 VAC or 90 250 VDC Both are non polarity sensitive Caution This is 3 element meter in small switchboard case and is not pin for pin compatible with the 20 terminal M1 standard connections Shorting Contacts 65571 002D LOAD Back View 36 Chapter 2 Installation Form 8R Wiring Diagram 4 wire Delta 3 Phase 4 Wire Delta Aux Power can be 55 530 VAC or 90 250 VDC Both are non polarity sensitive Caution This is 3 element meter in small switchboard case and is not pin for pin compatible with the 20 terminal M1 standard connections Shorting Contacts 6571 003 D LOAD Back View 37 JEMStar User Manual EXTERNAL CONNECTIONS JEMStar uses industry standard power connector configurations consistent with the standards listed in the Specifications section JEMStar Switchboard Case power connectors will accept 12 gauge solid wire or ring or spade lug Connections that are intended to be made and broken during normal meter operation e g temporary data connections
15. JEMSIAR Digital Multifunction Electricity Meter User Manual Publication 1083 600 Rev N March 2007 AMETEK Power Instruments Tel 585 263 7700 255 N Union Street Fax 585 262 4777 Rochester New York 14605 Web www ametek com Important Safety Notice Installation operation and maintenance of this product can present potentially hazardous conditions if safety procedures are not followed To ensure that this product is used safely it is important that you e Review understand and observe all safety notices and recommendations within this manual e Review your company safety procedures for meter installation and service DANGER Hazardous voltages are present during normal servicing of this device that can cause severe injury or death These voltages are present throughout the utility s potential transformer PT and current transformer CT circuits and the meter s connection terminals Only qualified properly trained personnel should perform installation and servicing on this equipment 2003 AMETEK Inc all rights reserved Scientific Columbus is a trademark of AMETEK Inc JEM is a registered trademark of AMETEK Inc MicroJoule II is a registered trademark of AMETEK Inc SC 30 is a registered trademark of AMETEK Inc JEMStar JEMWare JEMRead are trademarks of AMETEK Inc MV 90 is a trademark of Itron Energy Information Systems Inc Windows is a trademark of Microsoft Corp MODBUS is a tradem
16. ROCHESTER N IUS 63 JEMStar User Manual Meter Configuration of the parameters that determine the meter s operation can be set by using the JEMWare configuration software JEMW are includes a file management system for storing configurations configuration editing screens for setting the various parameters and communication channel setups to program the meter JEMWare provides the ability to read the existing configuration from the meter and to read the time on the meter through serial communications The JEMWare Instruction Manual 1083 602 describes each parameter that can be programmed NOTE You may use the latest version of JEMWare to open configuration file saved with prior version or to read the configuration from JEMStar meter that was programmed with prior version If you do this however you must verify all settings in the configuration before saving it or programming it into meter Verify the settings by opening each item in the Meter Settings menu and reviewing the settings This allows you to be confident that the correct settings are in place and also allows JEMWare to insert appropriate default settings for features that may not have been present in the older version of JEMWare User Interface JEMStar includes User Interface consisting of the front panel display and keypad The User Interface is designed to facilitate all the tasks most commonly performed at the meter without need
17. 1 00 0 32767 REG 21 30034 Instantaneous PF Phase A Rec 0 1 00 0 32767 REG 22 30035 Instantaneous PF Phase B Del 0 1 00 0 32767 REG 23 30036 Instantaneous PF Phase B Rec 0 1 00 0 32767 REG 24 30037 Instantaneous PF Phase C Del 0 1 00 0 32767 REG 25 30038 Instantaneous PF Phase C Rec 0 1 00 0 32767 REG 26 30039 Instantaneous PF Poly Del 0 1 00 0 32767 REG 27 30040 Instantaneous PF Poly Rec 0 1 00 0 32767 REG 28 30041 Volts THD Phase A 0 100 0 32767 REG 29 30042 Volts THD Phase 0 100 0 32767 REG 2A 30043 Volts THD Phase C 0 100 0 32767 REG 2B 30044 Amps THD Phase 0 100 0 32767 REG 2C 30045 Amps THD Phase B 0 100 0 32767 REG 2D 30046 Amps THD Phase C 0 100 0 32767 E 13 JEMStar User Manual Phase C Rec MODBUS PLC Register Contents Engineering Scaled Address Address Units Range Range REG 2E 30047 Volts Phase A 0 280900V 10 32767 REG 2F 30048 Volts Phase B 0 280900V 0 32767 REG 30 30049 Volts Phase C 0 280900V 0 32767 REG 31 30050 Amps Phase 0 400 10 32767 32 30051 Amps Phase 0 400A 10 32767 REG 33 30052 Amps Phase 0 400A 0 32767 REG 34 30053 Amps Poly 0 1200A 0 32767 REG 35 30054 Instantaneous Watts Phase A 10600 to 327768 to Bidirectional 10600W 32767 RE
18. 31800 to 32768 to Polyphase Bidirectional 31800 VAR 32767 E 15 JEMStar User Manual Extended Holding Registers function 03 JEMStar contains number of Holding Registers that facilitate its use in energy monitoring and management systems and to provide limited access to Load Profile data This section describes those registers and their interpretation They are read using Function Code 03 the same as the basic Holding Registers MODBUS JEMStar Parameter Units Register Instantaneous 1000 Amps phase A Primary milli amps 1002 Amps phase B Primary milli Lone amps Amps phase C Primary milli amps 1006 Amps phase N Primary milli amps 1008 Amps polyphase Primary milli amps 1010 Volts L L phase A B Primary milli amps Volts L L phase B C Primary milli 1012 volts Volts L L phase C A Primary milli 1014 volts Volts L L polyphase Primary milli 1016 volts Volts L N phase A N Primary milli 1018 volts Format Number of Registers t go N Long Long E EF 3 3 3 go ga go Long t go Long 1020 Volts L N phase B N Primary milli volts 1022 Volts L N phase C N Primary milli volts 1024 Volts L N polyphase Primary milli volts 06 Frequency 1027 PF Delivered phase A PF milli 1028 PF Delivered phase B PF milli Int Long Long Int Int PEami i Im Im PEmi Im Im
19. Phase C potential status Appendix D DNP Serial Communications D 7 JEMStar User Manual Counters Counters are implemented as 32 bit counter without flag Object 20 Var 5 For the counter point list the user may select any Normal Alternate or Internal not Test display register to map to each point in the counter list Note that display registers may contain demand or instantaneous readings as well as consumption totals This list can be configured to contain up to 64 counter points In addition to the Normal and Alternate register set JEMStar has an internal register list consisting of 49 various measurements Using JEMWare the counter point list can be configured to be any mix of Normal Alternate or Internal registers up to a total of 64 points Each numeric counter point value is represented as the corresponding register value times a user selected scaling factor Registers in the Normal and Alternate display lists are set by the user The Internal list contains these registers Watthours Delivered Watthours Received VARhours Delivered VARhours Received V Ahours Delivered V Ahours Received Qhours Delivered Qhours Received Amphours Volt Squared hours Amp Squared hours Average PF Delivered Phase A Average PF Delivered Phase B Average PF Delivered Phase C Average PF Delivered Polyphase Average PF Received Phase A Watt Delivered Past Interval Demand VAR Delivered Past Interval Demand VA Delivered Past I
20. Pres x Rem Int PredDmd Where PredDmd Demand Prediction Avg Average of Instantaneous Readings already taken in the present demand interval The average is updated just before the Prediction is made Sec Seconds that have already elapsed in the demand interval Pres Most recent Instantaneous Reading Rem Seconds remaining in Demand Interval Int Total number of seconds in Demand Interval 105 JEMStar User Manual Examples Graphs are not to scale Assume one Instantaneous measurement per minute for illustration purposes Example 1 Predicted demand with level load Level Load Prediction e ve r q T CN Time Remaining u e N At 16 minutes into the demand interval every measurement was 1000 watts which means the average power was also 1000 watts One thousand watts times 16 minutes 16 000 watt minutes The most recent Instantaneous measurement taken at 16 minutes into the interval is 1000 watts Assume the average power of the remaining 14 of 30 measurements is 1000 watts I e a level load One thousand watts times 14 minutes 14 000 watt minutes Added to the 16 000 watt minutes from before the total is 30 000 watt minutes Divided by 30 total minutes the Predicted Demand is 1000 watts Varying Load Prediction Last Measure co me Example 2 Predicted demand with varying load At 16 minutes into the demand interval the average of 16 Instantaneous me
21. REG 98 40153 S 1000 Alternate Reg 21 Hi REG 99 40154 S 1000 Alternate Reg 21 Lo REG 9A 40155 S 1000 Alternate Reg 22 Hi REG 9B 40156 S 1000 Alternate Reg 22 Lo REG 9C 40157 S 1000 Alternate Reg 23 Hi REG 9D 40158 S 1000 Alternate Reg 23 Lo REG 9E 40159 S 1000 Alternate Reg 24 Hi REG 9F 40160 S 1000 Alternate Reg 24 Lo REG 40161 S 1000 Alternate Reg 25 Hi REG Al 40162 S 1000 Alternate Reg 25 Lo REG A2 40163 S 1000 Alternate Reg 26 Hi REG A3 40164 S 1000 Alternate Reg 26 Lo REG A4 40165 S 1000 Alternate Reg 27 Hi REG A5 40166 S 1000 Alternate Reg 27 Lo REG A6 40167 S 1000 Alternate Reg 28 Hi REG A7 40168 S 1000 Alternate Reg 28 Lo REG A8 40169 S 1000 Alternate Reg 29 Hi REG A9 40170 S 1000 Alternate Reg 29 Lo REG AA 40171 S 1000 Alternate Reg 30 Hi REG AB 40172 S 1000 Alternate Reg 30 Lo REG AC 40173 S 1000 Alternate Reg 31 Hi REG AD 40174 S 1000 Alternate Reg 31 Lo REG AE 40175 S 1000 Alternate Reg 32 Hi REG AF 40176 S 1000 Alternate Reg 32 Lo REG BO 40177 S 1000 Alternate Reg 33 Hi REG B1 40178 S 1000 Alternate Reg 33 Lo REG B2 40179 S 1000 Alternate Reg 34 Hi REG B3 40180 S 1000 Alternate Reg 34 Lo REG B4 40181 S 1000 Alternate Reg 35 Hi REG B5 40182 S 1000 Alternate Reg 35 Lo REG B6 40183 S 1000 Alternate Reg 36 Hi REG B7 40184 S 1000 Alternate Reg 36 Lo REG B8 40185 S 1000 Alternate Reg 37 Hi REG B9 40186 S 1000 Alternate Reg 37 Lo JEMStar User Manual
22. Test Pulse pickup etc are accessible without exposing the operator to live power terminals or conductors Other JEMStar electrical connections e g Contact Outputs Contact Inputs Modem are brought outside the meter as pigtail leads S base A base of an appropriate wire gauge and insulation to maintain the electrical requirements of ANSI standards The Switchboard model provides user connections on rear mounted terminal blocks Reading the Wire Colors All output wires are individually color coded to simplify identification of each signal Each wire can have one two or three colors The sequence of colors is read as follows e Body insulation is the first color e Heavy stripe is the second color e Thin tracer stripe is the third color Body Heavy Stripe Tracer Stripe Grounding Recommendations It is important to ensure that all conductive outer surfaces of the JEMStar meter are properly grounded The S base and A base models are constructed with plastic housings so this is not a concern however the Switchboard case is steel and must have a good protective ground Supply an adequate low impedance ground to the JEMStar case and verify with an ohmmeter Be sure not to make grounding connections on painted surfaces All signal inputs and outputs that will be wired for extended distances from the JEMStar should be shielded cables with the shield grounded at one end The instrument PT and CT commons should be grounded consistent with
23. VAhours 3 Amps Amphours 4 Qhours 5 PF 6 Volts 7 Frequency 8 Volts THD 9 Amps THD 10 External Count Load Profile only 11 External Status Load Profile only 12 Amps Squared Amp Squared hours 13 Volts Squared Volt Squared hours eee is the Element or Phase on which the measurement is taken 0 No element Not applicable to any element or line phase Frequency only 1 Polyphase Sum or net of all phases If Channel Quantity is Volts or Volts Squared Polyphase means an average of all phases 2 Phase A Measured on Phase A E 28 Appendix E MODBUS Communications 3 Phase B Measured on Phase B 4 Phase Measured on Phase 5 Neutral Measured on Neutral line Amps only 6 Phase Average Average of all phases Amps or Amps Squared only d dd isthe Direction of the measured quantity 0 No direction Directionless quantities such as volts or amps 1 Delivered Power flowing from the line side of the meter to the load 2 Received Power flowing from the load side of the meter to the line 3 Quadrant I Delivered watts lagging VARs VARs only 4 Quadrant 2 Received watts leading VARs VARs only 5 Quadrant 3 Received watts lagging VARs VARs only 6 Quadrant 4 Delivered watts leading VARs VARs only rrrr is the Time of Use Rate during which the quantity is measured 0 Total Register is always active 1 Rate A Register measures only d
24. units Up to 2 external energy inputs contact inputs Pulse Weight in Primary units for each external energy input Negative pulse weights will be deducted from the Totalization channel s reading but it will never fall below zero These settings are identical to those of a Consumption register Most of these settings are self explanatory but a few require further description The Test Mode setting causes the Totalization channel to operate only while the meter is in Test Mode If a Totalization register is to be displayed in the meter s Test list it must have the Test Mode selection enabled Enabled means the Totalization channel is active Load Profile Km is the pulse weight of counts recorded in Load Profile if a Profile channel is selected to record this Totalization channel s contents This bypasses the normal Load Profile pulse constant configuration for that channel External energy inputs are pulse inputs on the JEMStar configured to be Totalization inputs Any transition make or break on one of these inputs can be detected by any Totalization channel and cause that channel to add the associated Pulse Weight to the Totalization s contents Note that input Pulse Weights are configured independently for each Totalization channel For example Totalization Channel may count each transition on input one as 1 0 MWh while Totalization Channel 2 may count each transition on input one as 3 8 MWh A Totalization channel may be displ
25. 0 25 RD per phase 10102 0 0 35 RD 0 35 RD 0 5 to 1 0 A 0 50 RD 0 50 RD Class 20 PF 1 PF 0 5 lagging Input Current Accuracy Accuracy ere t TR 2 0to 20 A 0 15 RD 0 15 RD per phase i 1 010 2 0 A 0 30 RD 0 30 RD 0 5 to 1 0 A 0 50 RD 0 50 RD Class 20 PF 0 PF 0 5 lagging Instantaneous VARs put Current Accuracy Accuracy per phase polyphase total 0 to 20 0 25 RD 0 25 RD 1 0 to 2 0 A 0 40 RD 0 40 RD 0 5 to 1 0 A 0 50 RD 0 50 RD Class 20 PF 1 PF 0 5 lagging VAD ee per phase polyphase total 010 20 0 25 RD 0 25 RD 1 0 to 2 0 0 40 RD 0 40 RD 0 5 to 1 0 A 0 50 RD 0 50 RD Instantaneous Volts Class 20 per phase polyphase total 0 15 RD Instantaneous Amps Class 20 per phase polyphase total neutral 10 05 RD 0 040 Iclass Class 20 Amphours Input Current per phase polyphase total 2A to 20 A 0 3 RD 05 02 0 6 RD Instantaneous Volts Class 20 per phase 0 2 RD Instantaneous Amps Class 20 per phase polyphase total 0 2 96 RD 0 005 Iclass Volt hours per phase Class 20 0 2 RD 110 Chapter 6 Advanced Features Class 20 Accuracy Amps hours Input Current per phase polyphase total 2Ato20A 0 3 RD 1Ato2A 1 0 RD 05AtolA 3 0 RD Instantaneous Powe
26. 1t00 3A 0 2 96 RD 0 25 RD 0 05 to 0 1A 0 05 to 0 1 0 25 RD VARhours per phase Class 10 Input Current Class 20 Input Current Accuracy PF 0 Accuracy PF 0 5 lag polyphase total 0 5 to 10 A 0 5 to 20 A 0 2 RD 0 2 RD 0 3 to 0 5 A 0 3 to 0 5A 0 2 RD 0 3 RD 0 1 to 0 3 A 0 1 to 0 3 A 0 3 RD 0 35 RD 0 05 to 0 1 A 0 05 to 0 1 A 0 35 RD VAhours Qhours per phase Class 10 Input Current Class 20 Input Current Accuracy PF 1 Accuracy PF 0 5 lag polyphase total 0 5 to 10 A 0 5 to 20A 0 2 RD 0 2 RD 0 3 to 0 5 A 0 3 to 0 5 0 2 RD 0 3 RD 0 1 to 0 3 A 0 1 to 0 3 0 3 RD 0 35 RD 0 05 to 0 1 A 0 05 to 0 1 A 0 35 RD Instantaneous Watts per phase Class 10 Input Current Class 20 Input Current Accuracy PFz1 Accuracy PFz0 5 lag polyphase total 0 5 to 10A 0 5to 20A 0 15 RD 0 15 RD 0 3 to 0 5 A 0 3 to 0 5 A 0 15 RD 0 25 RD 0 1 to 0 3 A 0 1 to 0 3 A 0 25 RD 0 3 RD 0 05 to 0 1 A 0 05 to 0 1 0 3 RD Instantaneous Vars per phase Class 10 Input Current Class 20 Input Current Accuracy PF 0 Accuracy PF 0 5 lag polyphase total 0 5 to 10 A 0 5 to 20 A 0 25 RD 0 25 RD 0 3 to 0 5 0 3 to 0 5 0 25 RD 0 35 RD 0 1 to 0 3 A 0 1 to0 3A 0 35 RD 0 4 RD 0 05 to 0 1 0 05 to 0 1 0 4 RD Instantaneous VA Q per phase Clas
27. 4 config id ID String 5 acct number ID Label 1 Meter Name ID Label 2 Administrator ID Label 3 Location ID Label 4 Config ID ID Label 5 Acct Number Primary Configuration Nominal Voltage 120V Connection Type 4 Wire Y Reactive Power Unit VAR VT Ratio 120 120 CT Ratio 5 5 Register Scaling Watt VA Units VAR Q Units Volt Volts Amp Amps JEMStar User Manual Display Registers Normal Registers Num Type Qty Dir Phase Disp Rate Digits Decimal Label 001 Instant Volt A Working 6 2 Volts Phase 002 Instant Volt B Working 6 2 Volts Phase B 003 Instant Volt Working 6 2 Volts Phase C 004 Instant Amp A Working 6 3 Amps Phase A 005 Instant Amp B Working 6 3 Amps Phase B 006 Instant Amp Working 6 3 Amps Phase 007 Instant Watt Del Poly Working 6 2 Watts Del Total 008 Instant VAR Del Poly Working 6 2 VARs Del Total 009 Instant Freq Working 6 3 Line Freq 010 Instant VTHD A Working 6 3 Volts THD 011 Instant VTHD B Working 6 3 Volts THD B 012 Instant VTHD Working 6 3 Volts THD 013 Instant ATHD A Working 6 3 Amps THD A 014 Instant ATHD B Working 6 3 Amps THD B 015 Instant ATHD Working 6 3 Amps THD C 016 Instant Amp N Working 6 3 Amps Neutral 017 Time Time Working Present Time 018 Time Date Working Present
28. Bidirectional Bidirectional Bidirectional Bidirectional Bidirectional Bidirectional Bidirectional Watts Phase A Del Watts Phase A Rec Watts Phase B Del Watts Phase B Rec Watts Phase C Del Watts Phase C Rec Watts Poly Del 68 Instantaneous Uncompensated x1000 Watts Poly Rec 69 Instantaneous Uncompensated x1000 VARs Phase A Del 7 8 9 0 1 2 3 55 Instantaneous Watts Phase C x1000 Bidirectional 6 7 8 9 0 1 2 3 D 11 JEMStar User Manual Analog Input Name Description VARs Phase A Rec VARs Phase B Del VARs Phase B Rec VARs Phase C Del 0 1 2 3 74 Instantaneous Uncompensated x1000 75 Instantaneous Uncompensated x1000 76 Instantaneous Uncompensated x1000 77 Instantaneous Uncompensated VA x1000 78 Instantaneous Uncompensated VA x1000 79 Instantaneous Uncompensated VA x1000 80 Instantaneous Uncompensated VA x1000 81 Instantaneous Uncompensated VA x1000 82 Instantaneous Uncompensated VA x1000 83 Instantaneous Uncompensated VA x1000 84 Instantaneous Uncompensated VA x1000 85 Instantaneous Uncompensated PF x1000 86 Instantaneous Uncompensated PF x1000 87 Instantaneous Uncompensated PF x1000 88 Instantaneous Uncompensated PF x1000 89 Instantaneous Uncompensated PF x1000 9 0 Instantaneous Uncompensated PF x1000 Phase C Rec Instantaneous Uncompensated PF x1000 Poly Del 7 92 Instantaneous Uncompensated PF x1000 Poly Rec 93 Instantaneous Uncompensate
29. Factor is available only as a register Average Power Factor PF for the Billing Period The PF is calculated continuously from Watts and VAs accumulated since the last Billing Period Reset The accumulators are cleared on a Billing Period Reset Demand Fixed or Sliding Window Registers Displayed Quantities Per Phase and Polyphase W Del W Rec VAR Del VAR Rec VA Del VA Rec VAR per Display scaling Demand Interval Length Preset Register Retrieval Peak Demand Displayed Quantities Characteristics Time of Peak Demand Displayed Quantities 16 quadrant A Q Del Q Rec In secondary at meter terminals or primary at PT CT input units 1 2 3 4 5 6 10 12 15 20 30 or 60 minutes Configurable for one or more subintervals per interval as long as the total interval length number of subintervals per interval times subinterval length equals one of the periods listed above No more than 12 subintervals per interval Any desired value that can be displayed By serial communications Normal peak Cumulative Demand or Continuous Cumulative Demand Configurable to be associated with any Time of Use TOU Rate If associated with any rate other than Total the Peak Demand Register is calculated only on energy measured while that rate is active Time or Date at which the corresponding Peak Demand occurred Coincident Demand Displayed Quantities Per Phase and Polyphase Display scaling Dem
30. For Switchboard style meters the connections are provided on rear terminal blocks Switchboard RS 232 Connections Terminal Signal 21 Tx 22 Rx 23 Comm Gnd 24 RTS 50 FT MAX Tx Rx RTS GND RS 232 CONNECTION DIAGRAM 48 Chapter 2 Installation RS 485 The JEMStar can be optionally equipped with RS 485 serial communications The RS 485 port operates in half duplex mode e g the Transmit and Receive signals share the same wire It is configurable for any valid communication address supported by the meter and can be configured for 300 1200 2400 9600 19 2K or 38 4K bps communications The maximum reliable distance for RS 485 communications is approximately 4000 feet however this length can vary depending on the type of cable used external electrical interference etc The RS 485 option is mutually exclusive with the RS 232 option that is only one or the other can be installed unless the Dual Comm feature is installed For the S Base and A Base meter styles JEMStar serial output connections are provided via the multi conductor cable The wire colors are as follows RS 485 Output Connections Color Signal Wht Grn Blu XMT RCV Wht Red Blu XMT RCV For Switchboard style meters the connections are provided on terminal blocks Switchboard RS 485 Output Connections
31. Inputs 500V RMS 60Hz for I minute between each contact input circuit and any other contact input circuit I RMS 60Hz for I minute between each contact input circuit and all other circuits terminals and case 21 JEMStar User Manual Contact Outputs 500V RMS 60Hz for I minute between each contact output circuit and any other contact output circuit I kV RMS 60Hz for I minute between each contact output circuit and all other circuits terminals and case Communication Ports RS 232 RS 485 Ethernet 1 kV RMS 60Hz for 1 minute between the RS 232 485 and Ethernet circuits and all other circuits terminals and case Modem I kV RMS 60Hz for I minute between the modem telephone line circuit and all other circuits terminals and case Surge Withstand SWC In compliance with ANSI Standard C37 90 1 1989 IEEE Standard Surge Withstand Capability SWC Tests for Protective Relays and Relay Systems Section 2 2 Oscillatory SWC and related sections Fast Transient In compliance with IEC Standard 687 Section 5 5 4 Fast Transient Burst Test Agency Standards and Certification ANSI Tested and certified to comply with ANSI Standard C12 16 1991 IEC Tested and certified to comply with IEC Standard 60687 1992 FCC The internal modem complies with FCC Part 68 22 METER INSTALLATION CASE STYLES JEMStar is available in the following case styles e Socket connected S base conforming to ANSI standard C12 10 1987 Section 5 e Small
32. JEMStar can be equipped with the following optional features e Additional 8 channels of Load Profile 4 channels included as standard Demand Prediction External Energy Totalization Voltage Sag Swell detection and logging Modbus and DNP communications protocols Input Range Limits and Burdens Current Inputs Current Input Operation Overload Burden at T4 Burden at T4 Class Ran Imax i Class 2 0008 2 A 3 0A 0 5 VA 0 5 VA Class 10 004 10 A 15A 0 5 VA 1 25 VA Class 20 004 20 A 30A 0 5 VA 2 5 VA Voltage Inputs Vnominal 69 120 240 277 380 480 Vrange 55 530 Burden 0 5 VA amp 530V Does not include auxiliary power requirements Current Overload 1 5x rated class current continuous 20x rated class current for 1 second Auxiliary Power Vnominal 69 120 240 277 380 480 Vrange 55 530 Auxiliary Power Burden 15 VA maximum 10 VA typical normally derived from A phase voltage input on S base and A base meters JEMStar User Manual Accuracy The nominal conditions referenced in the specifications are defined as follows Vinput Nominal Input Voltage Test Amperes Class Amps IcrAss Meter Class Current Full Scale Icrass X VINPUT Class 10 and 20 Watthours per phase Class 10 Input Current Class 20 Input Current Accuracy PF 1 Accuracy PF 0 5 lag polyphase total 9 Bb typical 0 3 to 0 5A 0 3 to 0 5 A 0 1 RD 0 2 RD 0 1t00 3A 0
33. MODBUS PLC Signed Scale Factor Register Contents Address Address Unsigned REG BA 40187 1000 Alternate Reg 38 Hi REG BB 40188 1000 Alternate Reg 38 Lo REG BC 40189 1000 Alternate Reg 39 Hi REG BD 40190 1000 Alternate Reg 39 Lo REG BE 40191 1000 Alternate Reg 40 Hi REG BF 40192 1000 Alternate Reg 40 Lo REG 40193 1000 Alternate Reg 41 Hi REG C1 40194 1000 Alternate Reg 41 Lo REG C2 40195 1000 Alternate Reg 42 Hi REG C3 40196 1000 Alternate Reg 42 Lo REG C4 40197 1000 Alternate Reg 43 Hi REG C5 40198 1000 Alternate Reg 43 Lo REG C6 40199 1000 Alternate Reg 44 Hi REG C7 40200 1000 Alternate Reg 44 Lo REG C8 40201 1000 Alternate Reg 45 Hi REG C9 40202 1000 Alternate Reg 45 Lo REG CA 40203 1000 Alternate Reg 46 Hi REG CB 40204 1000 Alternate Reg 46 Lo 40205 1000 Alternate Reg 47 REG CD 40206 1000 Alternate Reg 47 Lo REG CE 40207 1000 Alternate Reg 48 Hi REG CF 40208 1000 Alternate Reg 48 Lo REG DO 40209 1000 Alternate Reg 49 Hi REG D1 40210 1000 Alternate Reg 49 Lo REG D2 40211 1000 Sys Wh Del Hi REG D3 40212 1000 Sys Wh Del Lo REG D4 40213 1000 Sys Wh Rec Hi REG D5 40214 1000 Sys Wh Rec Lo REG D6 40215 1000 Sys VARh Del Hi REG D7 40216 1000 Sys VARh Del Lo REG D8 40217 1000 Sys VARh Rec Hi REG D9 40218 1000 Sys VARh Rec Lo REG DA 40219 1000 Sys VAh D
34. Register Contents 00 20001 Contact Input I status REG 01 20002 Contact Input 2 status REG 02 REG 03 REG 04 20005 Neutral current swell alarm REG 05 REG 06 REG 07 REG 08 REG 09 20010 Phase C PF low alarm REG 0 20011 Phase C voltage sag alarm REG 0B REG 0C REG 0D 20014 Phase C over voltage alarm REG 0E REG 0F REG 10 REG 11 REG 12 20019 Phase B PF low alarm REG 13 REG 14 REG 15 REG 16 REG 17 REG 18 REG 19 REG 1 REG 1B REG IC REG ID REG 1E REG IF REG 20 REG 21 REG 22 REG 23 REG 24 REG 25 REG 26 20039 Phase C potential status E 7 JEMStar User Manual Read Holding Registers function 03 Point List MODBUS PLC Signed Scale Factor Register Contents Address Address Unsigned REG 00 40001 S 1000 PT Ratio Hi REG 01 40002 S 1000 PT Ratio Lo REG 02 40003 S 1000 CT Ratio Hi REG 03 40004 S 1000 CT Ratio Lo REG 04 40005 Reserved REG 05 40006 Reserved REG 06 40007 Reserved REG 07 40008 Reserved REG 08 40009 Reserved REG 09 40010 Reserved REG 0A 40011 1000 Normal Reg 0 Hi REG 0B 40012 1000 Normal Reg 0 Lo REG 0C 40013 1000 Normal Reg 1 Hi REG 0D 40014 1000 Normal Reg 1 Lo REG 0E 40015 1000 Normal Reg 2 Hi REG OF 40016 1000 Normal Reg 2 Lo REG 10 40017 1000 Normal Reg 3 Hi S S S S S S S REG 11 40018 S 1000 Normal Reg 3 Lo REG 12 40019 S 100
35. Status then an operation of either one or both will produce the On indication 76 Chapter 4 Test amp Calibration The following chart should be used to interpret the hexadecimal code for Meter status shown as the fifth digit from the left Meter Status Battery Warning Config Default Site Monitor External Status Digit Value 0 1 On 2 Yes 3 Yes On 4 Yes 5 Yes On 6 Yes Yes 7 8 Yes 9 Yes On Yes Yes B Yes Yes On C Yes Yes D Yes Yes On E Yes Yes Yes F Yes Yes Yes On Threshold Alarm Status This digit displayed sixth from the left reports the state of the four Register Threshold detectors in the JEMStar Threshold Alarm Threshold 1 Threshold 2 Threshold 3 Threshold 4 Digit Value 0 1 Yes 2 Yes 3 Yes Yes 4 Yes 5 Yes Yes 6 Yes Yes 7 Yes Yes Yes 8 Yes 9 Yes Yes Yes Yes B Yes Yes Yes C Yes Yes D Yes Yes Yes E Yes Yes Yes F Yes Yes Yes Yes TT JEMStar User Manual Potential Indicator Status This digit displayed eighth or last from the left monitors the presence of up to three meter phase potential inputs Potential Indicator Phase C Phase B Phase Digit Value 0 1 2 3 On On 4 On 5 On On 6 On On 7 Communication Settings There are four basic me
36. Time in mSec between RTS ON and Tx start Time in mSec between Tx end and RTS OFF Idle Timer Type Time in minutes with no comm activity before modem disconnects Indicates the presence of the Ethernet option IP Address Netmask Current IP address Current Netmask MAC Address lt Register list gt lt Register list gt Channel I MAC address lt Value in each register gt Editable for numeric registers lt Value in each register gt Editable for numeric registers Ke Value Site Alarm Threshold Alarm Not Installed Channel 2 Ke Value Site Alarm Threshold Alarm Not Installed Channel 3 Ke Value EOT Site Alarm Threshold Alarm Not Installed Channel 4 Channel 1 Channel 2 Channel I Channel 2 Ke Value Site Alarm Threshold Alarm Not Installed Counter Interval Sync TOU Override Status Not Installed Counter Interval Sync TOU Override Status Not Installed lt Assigned measurement gt Not Installed lt Assigned measurement gt Not Installed Channel 3 lt Register list gt Optical Serial I lt Assigned measurement gt Not Installed Press SET to enter Test Mode gt Press SET to send character out port Press SET to send character out port Not Installed Serial 2 Ia Ib
37. accuracy is 0 1 of its full scale output and is de rated by an additional 75 ppm of Rated Output per degree C difference from nominal e The output can be configured to indicate bi directional input quantities Example Input Range Analog Output 1000 watts mA TER Aout 1 Load 1000 watts 1 mA 0 1 mA Output Connection 4 20 mA Outputs A JEMStar meter equipped with 4 20 mA analog outputs has the following characteristics e Each output channel requires a separate external loop supply of up to 24 volts e Analog output accuracy is 0 1 of its full scale output and is de rated by an additional 50 ppm of span per degree C difference from nominal e The outputs can also be configured to indicate bi directional input quantities Example of bi directional input range Input Range Analog Output 1000 watts 4mA Aout 1 Load 0 watts 12 mA 24Vdc 1000 watts 20 mA s f ROME Source 4 20 mA Output Connection 45 JEMStar User Manual Analog Output Connections For the S Base and A Base meter styles JEMStar analog output connections are provided via 3 foot multi conductor cable The wire colors are as follows S amp A Base Analog Output Connections Color Signal Wht Red Brn Aout I Wht Red Grn Aout I Wht Org Grn Aout 2 Wht Blk Aout 3 Wht Org Brn Aout 2 Wht Gry Aout3 For Switchboard style
38. alarm Phase B over current alarm Phase B power reversed alarm Phase B PF high alarm Phase B PF low alarm Phase B voltage sag alarm Phase B under voltage alarm Phase B voltage swell alarm Phase B over voltage alarm Phase under current alarm Phase over current alarm Phase power reversed alarm Phase A PF high alarm Phase low alarm Phase voltage sag alarm Phase under voltage alarm Phase voltage swell alarm Phase over voltage alarm Threshold Alarm 1 Threshold alarm 2 Threshold alarm 3 Threshold alarm 4 Phase potential status Phase B potential status Phase C potential status Loss of Phase Potential End of Demand Interval Fatal Error Non fatal Error JEMStar s default configuration is to have these Binary Input Points assigned Binary Input Name Description 0 Contact Input 1 status 1 Contact Input 2 status 2 Voltages out of sequence alarm Neutral over current alarm 3 4 Neutral current swell alarm 5 Phase C under current alarm 6 Phase C over current alarm Phase C over voltage alarm 1 Phase B over current alarm 1 Phase B power reversed alarm 1 1 1 Phase C voltage swell alarm 1 25 1 5 7 Phase B PF high alarm 8 9 1 7 8 9 0 2 3 14 Phase B under current alarm 6 0 2 3 4 Phase power reversed alarm Binary Input Name Description 4 6 5 Threshold alarm 4 Phase A potential status 7 Phase B potential status 3 3 3 3 3 3 3 3 3
39. amp C3 Bit 2 6 0 Oz No Fallback Forward AT E0 1 0 Retrain Enabled AT E1 0 0 Fallback Forward Enabled AT E2 Bit 3 5 7 Not Used S46 Data Compression Control S46 selects whether or not the modem will support data compression with error control S46 136 data compression 546 138 Data Compression selected Default 38 S48 V 42 Negotiations S48 determines the modem s V 42 negotiation process S48 0 Proceed with LAPM S48 7 Negotiate per V 42 48 128 Assume failure Default 7 S86 Call Failure Code S86 shows why the last NO CARRIER response was issued Normal Disconnect S86 Loss of Carrier S86 5 V 42 Negotiation Failure S86 9 Modem Handshake Failure S86 12 Disconnect Initiated by remote modem S86 13 No response after 10 retries S86 14 Protocol Violation S95 Extended Result Codes S95 permits the user to customize the extended result codes Bit 0 Connect result code shows link speed Bit 1 Add ARQ to connect response Bit 2 Add VFC to Carrier response Bit 3 Enable Protocol response Bit 4 Not Used Bit 5 Enable Compression Result Code Bit 6 Not used Bit 7 Not Used AT FCLASS Service Class Indication 0 Configured as a data modem I Configured for Service Class 1 Appendix A Default Configuration AT FCLASS Service Class Capability 0 Configured as a data modem 1 Configured for Service Class 1 AT FCLASS n Set Service Class 0 Configured as a data modem 1 Config
40. amps DC Rolling Interval Sliding Window demand measurement consisting of the summation of values calculated over multiple consecutive subintervals calculation is updated at the completion of each subinterval but includes defined number of previous subintervals Season season is range of dates whose start date is contained in the season schedule in seconds time format Season Schedule season schedule is an array of dates within the TOU schedule that enables the meter to identify the seasons Seconds Time Format A 32 bit number in units of seconds referenced from January 1 1990 Special Event An event stored in load profile data such as a register freeze power fail time set etc Storage Register copy of quantity which could be displayable register and is saved when triggered by demand reset Subinterval The increment of time in which demand calculations are updated T4 Test Amperes equal to Class Amps THD Total Harmonic Distortion a measure of the amount of harmonic content in a periodic signal expressed as a percentage pure sine wave at the fundamental frequency has 0 THD Thermal Demand A measurement filtered through a time delay such that step changes in the measurement are reflected slowly in the output Commonly used to simulate the effects of current heating on power distribution equipment Thermal Time Characteristic The time required for a Thermal Demand Register to refl
41. as a single change of state either open to close or close to open This equates to 10 complete pulse cycles per second 4l JEMStar User Manual For the S Base and A Base meter styles JEMStar contact output connections are provided via multi conductor cable The wire colors are as follows Contact Output Connections Color Signal Wht Yel BIk Dout 1 Wht Yel Dout 1 Wht Org BIk Dout 2 Wht Org Dout 2 Wht Grn Dout 3 Wht Grn Blk Dout 3 Wht Red Dout 4 Wht Red BIk Dout 4 For Switchboard style meters the connections are provided on terminal blocks Switchboard Contact Output Connections Terminal Signal 16 Dout I Rx 15 Dout I Rx 14 Dout 2 13 Dout 2 12 Dout 3 11 Dout 3 10 Dout 4 Rx 9 Dout 4 Rx NOTE If the Ethernet option is installed terminals 15 and 16 can be configured for either Dout1 or Ethernet RX or terminals 9 and 10 can be configured for either Dout4 or Ethernet RX Refer to the Ethernet Switchboard Interface Board section on page 60 for jumper settings 42 Chapter 2 Installation 5 KYZ Option Board The 5 KYZ board provides five Form C K YZ contact outputs for connection to external devices The first four outputs operate with all the same functions as the DI DO contact outputs and have all the same features and specifications refer to the preceding section for information about o
42. battery it will maintain time even when auxiliary power is off The JEMStar clock can be configured to use the local power line frequency as a time synchronization method or to use the internal frequency reference crystal oscillator If JEMStar is configured for line sync it will continue to keep time even if the Phase A reference voltage disappears If auxiliary power is absent the meter will revert to the internal crystal time base The JEMStar clock accuracy when configured for line sync is dependent on the line frequency accuracy When configured for crystal sync JEMStar s timekeeping accuracy is 3 minutes per month or better The date and time can be set from the front panel or via serial communication command JEMStar will accommodate the differences in the way time is adjusted for daylight savings time internationally through the JEMWare program Note Date and Time can only be edited through the Settings menu not via Presets Setting the Date and Time The date and time can be set either through the front panel HUE or through serial communications via JEM Ware software Xm 14 87 51 Since this may affect interval timing or TOU this session is Ri logged as a manual Time Set event The front panel procedure is performed as follows nnfigure Health Date Set 1 Remove the meter globe To enter the Date Set Mode press any arrow key Using the arrow keys go to Settings Date Time Date then press the SET
43. bps carrier received A 14 APPENDIX ACCESSORIES The following is a list of user replaceable parts Please contact the factory for further information Description Phone Home Power Outage battery pack Non Volatile RAM backup battery Security jumpers for front panel lockout S base outer globe w pushbuttons S base to A base adapter assembly A base adapter locking ring Switchboard front cover assembly Switchboard case thumbscrew Optical Pickup Assembly Modem cable 3 ft S base unit interface cable 3 ft S base unit JEMStar User Manual JEM Ware Meter Configuration Software Manual JEMRead Data Retrieval Software Manual JEMStar Firmware Command Set Manual Replacement Circuit Boards Part Number 15847 001 6005 254 4195 263 1082 419 6002 656 12648 001 1083 452 1083 425 Consult factory 1082 448 1082 447 1083 600 1083 602 1083 601 1083 603 Consult factory When ordering spare or replacement circuit boards please have the meter s Model Number and Serial Number available B 1 APPENDIX ELECTROSTATIC DISCHARGE ELECTROSTATIC DISCHARGE PREVENTION Static by definition is designating or producing stationary electrical charges such as those resulting from friction An electrostatic potential is produced by friction between nonconductive materials and can best be visualized as a field between two charged plates The electrostatic potential will exist until the d
44. button The date appears as XX XX XX and is a configurable sequence through JEMWare The first digit in the line is highlighted Highlighted digits are selected digits 3 To increment the highlighted digit press the button to decrement press the button You may press the READ button at any time to cancel the operation 4 To select the next digit press the right arrow button 5 Continue selecting and incrementing decrementing digits until the desired date has been entered 6 Press the SET button to accept the new value The meter automatically returns to the menu Use the left arrow to back through the menus and return to the normal display or press the READ button to escape Time Set 1 Remove the meter globe To enter the Time Set Mode press any arrow key Using the arrow keys go to Settings I Date Time Time then press the SET button The time appears as HH MM SS in 24 hour format The first digit in the line is highlighted Highlighted digits are selected digits To increment the highlighted digit press the button to decrement press the button To select the next digit press the right arrow button Continue selecting and incrementing decrementing digits until the desired time has been entered S r 74 Chapter 4 Test amp Calibration 6 Press the SET button to accept the new value The meter automatically returns to the menu Use the left arrow to back through the menus and return to the normal dis
45. could not be reconciled E g Register Freeze Billing Period Reset Register Preset etc The Load Profile intervals resemble demand intervals but can be set independently The interval closures occur on even increments within the hour For example a 15 minute interval will begin on the hour and will close at 00 15 the next interval will close at 00 30 the next interval will close at 00 45 etc At the end of each interval the meter records the number of pulses accumulated since the last Load Profile interval closure or special event When the Load Profile data storage memory is full the meter will overwrite the oldest information The number of days of storage available is determined by the Load Profile interval length and number of channels stored Each Load Profile interval contains one or more channels of data Each channel is configurable as to the quantity to be recorded and the equivalent pulse constant Km Each channel can store up to 16 000 equivalent counts per interval JEMStar will store at least 60 days of data for 4 channels up to 12 channels available recorded every 5 minutes along with all included Midnight records and reasonable numbers of Time Set Billing Period Reset and Power Outage intervals By configuring fewer channels and or longer intervals you can increase the number of days of storage Each Load Profile channel can be configured to record one of the following e Any consumption quantity e The number of
46. detected received 10 CONNECT 2400 2400 bps Connection 57 CARRIER 26400 26 400 bps carrier received 11 CONNECT 4800 4800 bps Connection 58 CARRIER 28800 28 800 bps carrier 12 CONNECT 9600 9600 bps Connection received 13 CONNECT 7200 7200 bps Connection 59 CONNECT 16800 16 800 bps Connection 14 CONNECT 12000 12 000 bps Connection 61 CONNECT 21600 21 600 bps Connection 15 CONNECT 14400 14 400 bps Connection 62 CONNECT 24000 24 000 bps Connection 16 CONNECT 19200 19 200 bps Connection 63 CONNECT 26400 26 400 bps Connection 17 CONNECT 38400 38 400 bps Connection 64 CONNECT 28800 28 800 bps Connection 18 CONNECT 57600 57 600 bps Connection 66 COMPRESSION CLASS 5 MNPS data compression 19 CONNECT 115200 115200 bps Connection 67 COMPRESSION V 42bis V 42bis data compression 22 CONNECT 75TX 1200RX V 23 originate connection 69 COMPRESSION NONE No data compression 23 CONNECT 1200TX 75RX V 23 answer connection 76 PROTOCOL NONE No error correction 33 FAX Fax connection TI PROTOCOL LAPM LAPM error correction 35 DATA Connection in Fax 80 PROTOCOL ALT MNP error correction mode 81 PROTOCOL 40 CARRIER 300 300 bps carrier received ALT CELLULAR 1 error correction 44 CARRIER 1200 75 V 23 reverse channel F4 FCERROR Fax carrier error carrier received 45 CARRIER 75 1200 V 23 forward channel carrier received 46 CARRIER 1200 1200 bps carrier received 47 CARRIER 2400 2400 bps carrier received 48 CARRIER 4800 4800 bps carrier received 49 CARRIER 7200 7200
47. in the following sections 80 Chapter 4 Test amp Calibration TEST amp CALIBRATION Test Mode You can test meter functions and accuracy from the front panel Since this may temporarily inhibit registration this session is logged as a Test Mode event You must break seal to perform this function To enter the Test Mode go to display menu Configure Tstmode then select parameter from the third column that you want to view You must press the SET button to actually enter Test Mode This action helps prevent accidentally entering into Test Mode and suspending registration Registration Adjustment You can adjust the meter s Watt and VAR registration from the meter s front panel This session is logged as a Calibration event and is performed in Test Mode This is not a full meter calibration If re calibration is required the meter must be returned to the factory The JEM Star optical port on the face of the meter performs two functions During Standard Meter Mode it is used for serial communications In Test Mode the optical port on the face of the meter sends out test pulses consistent with the test register that is being displayed e g Watthour Varhour The pulse outputs are available even when the meter is in Test Mode operating at their programmed K value You may use Scientific Columbus Model 5282 Optical Port Adapter or equivalent that will convert the optical pulses to contact closures This can
48. line The escape character set by Register S2 is entered 3 times in succession to execute the escape The default escape sequence is Result Codes The modem issues a result code after each action Result codes may be provided as full words numeric codes or may be disabled Each result code ends with a carriage return when numeric result codes are chosen When full word result codes are chosen a Line Feed and Carriage Return precede and follow each result code List of Commands An asterisk indicates the default setting of the command for the XE 1414B Answer Command ATA forces the modem to immediately go off hook and begin transmitting the answer tone sequence Bn Select Communications Standard ATBn selects the modulation scheme used for connections below 2400 bits per second n 0 Selects CCITT standards n 1 Selects Bell standards D Dial Command Below are the characters accepted in dialing command 0 9 Dialing Digits L Re dial last number P Pulse dial T Tone dial S n Dial stored number W Wait for dial tone Toggles state of calling tone Pause for the duration of S8 Wait for silence Switch hook flash Return to the command state En Command Echo ATEn determines whether commands will be echoed back to the host n 0 Do not echo commands n 1 Enable command echo Hn Switch Hook Control ATHn opens and closes the modem s hook switch n 0 Switch hoo
49. number of rings for defined period each day and after some other number of rings for the rest of the day The modem can also detect another telephone device sharing the line going off hook and surrender the line immediately as long as the shared device is downstream of the modem Phone Home Modem The JEMSrar internal modem has the capability of performing call originate phone home calls The meter can be programmed to call originate as a result of certain events including e Demand Threshold Site Alarm Threshold Alarm Data retrieval and on a scheduled call in for data retrieval as supported by MV 90 Power Fail optional Each event can be set to call up to four different phone numbers The modem can be configured to transmit an ASCII text message or a series of DTMF tones The modem can be set up to drop into slave mode where it waits to be interrogated using whatever protocol the modem is configured to use Phone home operation calls the phone number and reports the information as a text message without requiring any special processing software Once the meter establishes communications it sends a user specified ASCII or DTMF response indicating the meter name and location the time of call and which events occurred This can be logged either by computer running terminal emulation software or by serial printer connected to the modem 50 Chapter 2 Installation FCC Compliance of the Internal Modem This equipme
50. of per phase voltage current and their phase angles with respect to Volts Phase A The user can enter this mode and read the information either from the front panel or remotely via JEMWare software 55 ADefault cfg File Settings for Meter PC Communication Help 28 Running Meter Diagnostic 270 ME x 117 100 V 0 0 3 800 A 7 0 240 PF 0 9925 7 0 LAG Vc Ph Watts 441 663 Ph VA 444 980 Vb 113 650 V 120 0 Ib 3 700 A 116 0 PF 0 9976 4 0 LEAD 20 Ph Watts 419 481 Ph VA 420 505 Vc 119 200 V 240 0 Ic 2 800 A 244 3 PF 0 9972 4 3 LAG Ph Watts 332 820 Ph V 333 760 Total Watts 1193 964 180 Total V 1199 245 I neutral 1 986 150 120 _ lt sa 90 For Help press F1 Diagnostic Display using JEM Ware Verification codes are used to interpret the information in light of the meter and service type If the actual readings are inconsistent with the expected readings the information will suggest possible remedies to be performed 96 Chapter 5 Maintenance Installation Site Monitoring JEMStar will check its present operating conditions on regular basis and detect the following conditions Per phase instantaneous volts outside of configured thresholds upper and lower Per phase instantaneous amps outside of configured thresholds upper and lower Per phase power factor outside of configured range upp
51. polyphase Pri ae 2 1097 Reactive Q Power UOM to Kilo Conversion Factor 1 1098 VA Received phase A Pri milli 2 1100 VA Received phase Pri milli 2 1102 VA Received phase C Pri xVA milli 2 1104 VA Received polyphase Pri xVA milli 2 1106 Real Apparent Power UOM to Kilo conversion factor 1 1107 Watts bi directional phase Primary Long 2 xW mili 1109 Watts bi directional phase Primary ione 2 xW milli E 17 JEMStar User Manual MODBUS JEMStar Parameter Units Format Number of Register Registers 1111 Watts bi directional phase C Primary Long 2 xW milli 1113 Watts polyphase bi directional Primary Leas 2 xW milli 1115 Real Apparent Power to Kilo conversion factor power of ten In 1 t 1116 VARs bi directional phase Pri xVAR Rong 2 milli 1118 V ARS bi directional phase Pri xVAR isn 2 milli 1120 VARs bi directional phase Pri xVAR Long 2 milli 1122 VAR polyphase bi directional Pri PowerFactors pp 139 PF Delivered phase pmi i 1201 PF Delivered phase B J imi dm 1204 Consumption pf 1205 pri xWh milli jpg or pri xWh milli i c 1211 Real Apparent Energy UOM to Kilo conversion factor 1212 VARh Delivered pri M xVARh milli VARh Received pri pur xVARh milli 1218 Reactive Q Energy UOM to Kilo Conversion Factor Mod 10 x3 VAh Delivered 1 1219 pri xVAh milli 1222 VAkReceived pri xVAh mi
52. pulses received in an interval on a contact closure input Both make and break transitions are counted in the total e State of a contact input over the interval If the contact was closed one or more times during the interval the channel will record 1 count otherwise zero e The average of any Instantaneous quantities over a Load Profile interval In this case the channel pulse count multiplied by the equivalent pulse constant shall give the average value NOT the consumption in unit hours for the Load Profile interval e Accumulation in a Totalization channel For example for a 3 element meter operating at 120 volts 5 amps 1 0 PF on every element an equivalent pulse constant of 1 0 on all channels and 15 minute Load Profile intervals the Watthour Delivered channel will report 450 counts 120V x 5A x 3 100 Chapter 6 Advanced Features elements 4 intervals per hour The Average Instantaneous Watt Delivered channel will report 1800 Table 1 Approximate Number of Days of Load Profile Storage 12 Channel Option Interval Number of Load Profile Channels Used Length dw 112 5 8 9 10 12 s 1 49 24 16 12 9 8 T 6 5 4 4 4 2 98 49 32 24 19 16 14 12 10 9 8 8 3 147 73 49 36 29 24 21 18 16 14 13 12 4 196 98 65 49 39 32 28 24 21 19 17 16 5 245 122 81 61 49 40 35 30 27 24 22 20 6 294 147 98 73 58 49 42 36 32 29
53. registration over a range of current load assuming all other conditions at nominal reference conditions Load Profile A record of energy consumption stored periodically typically every 1 to 60 minutes and sequentially Each stored interval one record contains one or more channels a single integrated quantity accumulated during the interval just ended Load Profile Periodic Special Event The meter stores pulses accumulated since the time of the previous LP interval closure Load Profile Interval An LP interval is the period between two consecutive LP interval closures Load Profile Record An LP record is the data in a segment of load profile memory where the accumulated pulses from a single LP interval are stored Loss Compensation A generic term used to include both TLC and LLC G 3 JEMStar User Manual Measurement Quantity single measurable characteristic of power flow in circuit or commonly used combination of measurement quantities E g Volts Phase A Watthours Delivered Total MODBUS A standard serial communication protocol used by programmable controllers Null Modem Cable that emulates a modem to enable the connection of two DTE data terminal equipment devices such as any two devices that would communicate with a modem DCE device Partial Load Profile Count The total accumulated counts within an interval after the last special event or load profile interval closure Past Interval Deman
54. settings e Load Profile channel assignments e Primary Scaling settings including changing VT Ratio or CT Ratio from the meter front panel e Totalization channels Energy Pulses The Energy Pulse feature will be re initialized if these configuration sections are changed e Energy pulse channel assignments 72 Chapter 4 Test amp Calibration DISPLAY MENUS The following section details how to use the meter display menus The categories are listed in the order they appear on the screen Refer to the preceding chart Display Menu Layout for a full list of the available menus Some display menu features are read only and some are directly editable The meter settings that can be edited via the front panel are limited to the most common functions ALL JEMStar settings can be configured using JEMWare software Please refer to the JEM Ware instruction manual 1083 602 to configure meter via software JEMStar uses two security keys to limit access to the front panel pushbuttons Depending upon your company s policy you may need to unlock the keypad Refer to Section 5 Maintenance for instructions about Security Keys VTR CTR You can read and change the Voltage Transformer Ratio and the Current Transformer Ratio by going to the menu Settings Identity VTR or CTR Edit the existing setting by pressing SET and using the arrow buttons to enter a new ratio Be sure to update the front panel label to correspond to the ne
55. time of the last communications Freeze 3 Last Season Time time of last Time of Use season change 4 Next DST Time time of next Daylight Saving Time change 5 Present Date present value of the meter clock 6 Last BPR Date date of the last Billing Period Reset 7 Last Freeze Date date of the last Register Freeze 8 Last Season Date date of the last Time of Use season change 9 Next DST Date date of the next Daylight Saving Time change 10 Test Time Remaining time remaining in meter Test Mode 11 Demand Time Remaining time remaining in present Demand Interval 12 Days On Battery number of days meter has used backup battery power i e cumulative outage time For Status Registers 0 Present Status present System Status Word 1 Latched Status Word sticky System Status Word Shows conditions that have set a Status bit in the System Status Word but have since gone away 2 Last BPR Status System Status Word at last Billing Period Reset 3 Last Freeze Status System Status Word at last communications Freeze 4 Last Season Status System Status Word at last Time of Use season change 5 Register Firmware Version JEMStar register firmware version no numeric value 6 Metrology Firmware Version JEMStar metrology firmware version no numeric value E 27 JEMStar User Manual 7 Blank blank display no numeric value 8 Segment Check all display segments active no numeric value
56. to identify the beginning of new message with the first field of new message being the Device Address Devices that use the silence interval to detect new message expect the entire message frame to be transmitted continuously and do not allow a silent interval of more than 1 5 characters to occur before completion of the entire message The JEMStar MODBUS implementation will not monitor the network bus continuously and thus will not detect any silence interval Consequently the strict rules about silence intervals will not be enforced The start of new message will be detected using synchronization algorithm Typical JEMStar RTU Queries Query Field Read Holding Regs Force Single Coil Device Address 05 05 Function 03 05 Register Address 00 04 00 01 Regs Preset Value 00 06 FF 00 Error Check XX XX XX XX ASCII Message Framing In ASCII mode messages start with a colon character ASCII 3A hex and end with a carriage return line feed pair ASCII OD amp OA hex The carriage return line feed pair is optional The allowable characters transmitted for all other fields are hexadecimal 0 9 and A F SLAVE Devices monitor the network bus continuously for the colon character When one is received each device decodes the next field the address field to determine if the query is directed at it Intervals of up to one second can elapse between characters within t
57. using JEMWare For example any non secure readings may be placed in the Normal display list If nothing is to be displayed to unauthorized users the programmer may place the Blank or Segment Check display items in the Normal list Consult the JEMWare user s manual for full configuration details Class Class Amps The maximum current for which a meter is specified to operate within its accuracy rating Daily Schedule The daily schedule is an array of times and rates and it determines the moment at which a TOU period changes Demand JEMStar User Manual The average of some measurement over defined period of time traditionally calculated by accumulating the integrated measurement over the defined period the demand interval and dividing by the time Demand Deferral period immediately following power outage during which demands are not calculated Itis determined by the number of demand interval closures following the power outage Demand Prediction An optional feature that calculates and displays the Demand value expected at the end of the present demand interval before the interval is completed Demand Predictions may be used to monitor a load in order to prevent setting a new Peak Demand Demand Reset A scheduled or user initiated event that causes maximum demands to be zeroed and certain other calculations to occur DNP Distributed Network Protocol a serial communication protocol used in instrument networking Se
58. will have an accuracy of 0 12 at 10 A and 1 0 PF If the same register is compensated even though no compensation is enabled in the meter overall that register will have an accuracy of 0 07 See the JEMWare User Manual document 1083 602 for details on how to select a register as uncompensated Auxiliary Power Requirements 55 530 Volts AC 90 250 Volts DC switchboard models only Source S base and A base derived from A phase voltage input Switchboard separate terminals AC or DC Auxiliary Power Burden 15 VA maximum 10 VA typical Power Factor Influence Maximum additional error due to power factor influence is 0 002 P F for less than 0 5 11 JEMStar User Manual Temperature Operating Ranges External Environment Storage Temperature Max average temperature coefficient for Watthour Qhour and VARhour Frequency Range 50 Hz 60 Hz Clock Accuracy External tracking line frequency Internal tracking Meter Creep The meter does not creep 12 30 C to 85 C 30 C to 65 C with backlit display option 40 C to 85 C 75 ppm of reading C from 30 C to 85 C 45 to 55 Hz 55 to 65 Hz Accuracy of the clock is directly determined by the power system frequency except during loss of auxiliary power to the meter The internal reference accuracy is applicable for that time period 3 minutes per month maximum error crystal referenced No pulses or re
59. 0 Normal Reg 4 Hi REG 13 40020 S 1000 Normal Reg 4 Lo REG 14 40021 S 1000 Normal Reg 5 Hi REG 15 40022 S 1000 Normal Reg 5 Lo REG 16 40023 S 1000 Normal Reg 6 Hi REG 17 40024 S 1000 Normal Reg 6 Lo REG 18 40025 S 1000 Normal Reg 7 Hi REG 19 40026 S 1000 Normal Reg 7 Lo REG 1A 40027 S 1000 Normal Reg 8 Hi REG 1B 40028 S 1000 Normal Reg 8 Lo REG 1C 40029 S 1000 Normal Reg 9 Hi REG 1D 40030 S 1000 Normal Reg 9 Lo REG 1E 40031 S 1000 Normal Reg 10 Hi REG 1F 40032 S 1000 Normal Reg 10 Lo REG 20 40033 S 1000 Normal Reg 11 Hi REG 21 40034 S 1000 Normal Reg 11 Lo REG 22 40035 S 1000 Normal Reg 12 Hi REG 23 40036 S 1000 Normal Reg 12 Lo REG 24 40037 S 1000 Normal Reg 13 Hi REG 25 40038 S 1000 Normal Reg 13 Lo REG 26 40039 S 1000 Normal Reg 14 Hi REG 27 40040 S 1000 Normal Reg 14 Lo REG 28 40041 S 1000 Normal Reg 15 Hi REG 29 40042 S 1000 Normal Reg 15 Lo REG 2A 40043 S 1000 Normal Reg 16 Hi REG 2B 40044 S 1000 Normal Reg 16 Lo REG 2C 40045 S 1000 Normal Reg 17 Hi E 8 Appendix E MODBUS Communications MODBUS PLC Signed Scale Factor Register Contents Address Address Unsigned REG 2D 40046 S 1000 Normal Reg 17 Lo REG 2E 40047 S 1000 Normal Reg 18 Hi REG 2F 40048 S 1000 Normal Reg 18 Lo REG 30 40049 S 1000 Normal Reg 19 Hi REG 31 40050 S 1000 Normal Reg 19 Lo REG 32 40051 S 1000 Normal Reg 20 Hi
60. 0 Normal Reg 40 Hi REG 5B 40092 S 1000 Normal Reg 40 Lo E 9 JEMStar User Manual MODBUS PLC Signed Scale Factor Register Contents Address Address Unsigned REG 5C 40093 S 1000 Normal Reg 41 Hi REG 5D 40094 S 1000 Normal Reg 41 Lo REG 5E 40095 S 1000 Normal Reg 42 Hi REG 5F 40096 S 1000 Normal Reg 42 Lo REG 60 40097 S 1000 Normal Reg 43 Hi REG 61 40098 S 1000 Normal Reg 43 Lo REG 62 40099 S 1000 Normal Reg 44 Hi REG 63 40100 S 1000 Normal Reg 44 Lo REG 64 40101 S 1000 Normal Reg 45 Hi REG 65 40102 S 1000 Normal Reg 45 Lo REG 66 40103 S 1000 Normal Reg 46 Hi REG 67 40104 S 1000 Normal Reg 46 Lo REG 68 40105 S 1000 Normal Reg 47 Hi REG 69 40106 S 1000 Normal Reg 47 Lo REG 6A 40107 S 1000 Normal Reg 48 Hi REG 6B 40108 S 1000 Normal Reg 48 Lo REG 6C 40109 S 1000 Normal Reg 49 Hi REG 6D 40110 S 1000 Normal Reg 49 Lo REG 6E 40111 S 1000 Alternate Reg 0 Hi REG 6F 40112 S 1000 Alternate Reg 0 Lo REG 70 40113 S 1000 Alternate Reg 1 Hi REG 71 40114 S 1000 Alternate Reg 1 Lo REG 72 40115 S 1000 Alternate Reg 2 Hi REG 73 40116 S 1000 Alternate Reg 2 Lo REG 74 40117 S 1000 Alternate Reg 3 Hi REG 75 40118 S 1000 Alternate Reg 3 Lo REG 76 40119 S 1000 Alternate Reg 4 Hi REG 77 40120 S 1000 Alternate Reg 4 Lo REG 78 40121 S 1000 Alternate Reg 5 Hi REG 79 40122 S 1000 Alternate Re
61. 0 Var 4 points A total of up to 140 points are supported which represent such things as e Instantaneous Per phase Watts VARs VA Volts Amps and Power Factor Line frequency Per phase THD for volts and Amps Per phase V and A Bi directional Watts and VARs 32 Bit Inputs These inputs are represented in SECONDARY units and up to 3 decimal places of precision may be obtained by entering a scale value of 1000 For conversion to primary units the point value should be multiplied by the appropriate PT and or CT ratio JEMStar s default configuration is to have these Analog Input Points assigned Analog Input Name Description 0 Instantaneous Watts Phase A Del x1000 1 Instantaneous Watts Phase A Rec x1000 Instantaneous Watts Phase B Del x1000 Instantaneous VARs Phase A Del x1000 2 1 Instantaneous VARs Phase C Del x1000 N oo 5 o o D 3 amp 2 c o lt gt A o U 2 D o 2 5 14 Instantaneous VARs Poly Del x1000 15 Instantaneous VARs Poly Rec x1000 1 6 Instantaneous VA Phase A Del x1000 1 instnianeous Amps Neu 00 28 Instantaneous Volts Phase A 2 Instantaneous VA Phase C Rec x1000 D 10 Appendix D DNP Serial Communications Analog Input Name Description 29 Instantaneous Volts Phase B x1000 31 Frequency 41 Volts THD Phase B 43 Amps THD Phase x1000 46 Volts Phase A x1000
62. 1715 AR Q VARh Qh Primary Unit of Measure ower of ten In n 5 ower of ten 1716 Volt Primary Unit of Measure 1717 Amp Primary Unit of Measure 1718 Volt Primary Squared Unit of Measure 1719 Amp Primary Squared Unit of Measure n gt ower of ten gt n ower of ten n gt 2 e ower of ten n Int n gt 1720 Connection 1721 Demand Method 1722 Demand Interval 1723 Demand Subinterval Configured number of display items in Normal Display 1724 List See MODBUS registers 1800 1999 12000 12749 Configured number of display items in Alternate Display List See MODBUS registers 2000 2199 13000 13749 et et et PR PR TR o n Int Int E 20 Appendix E MODBUS Communications MODBUS JEMStar Parameter Units Format Number of ET number of display items in Internal Display o 1 List See MODBUS registers 14000 14749 number of Load Profile channels See 1 MODBUS registers 15000 15179 ispay Register fy 1800 1999 Normal Display List Registers up to 50 entries PR Display 4 ea 2000 2199 Alternate Display List Registers up to 50 entries Display 4ea Load Profile 2900 2919 Data Log Header me NE 2950 2985 Data Log Table of Contents 36 scratchpad registers Int 36 writable by system 3000 10799 2999290150818 eo ia 200
63. 1800 VAR 0 32767 16 Instantaneous VA Phase A Del 0 10600 VA 0 32767 22 Instantaneous VA Poly Del 0 31800 VA 0 32767 23 Instantaneous VA Poly Rec 0 31800 VA 0 32767 26 Instantaneous Amps Phase C 0 20 A 0 32767 27 Instantaneous Amps Neutral 0 20 A 0 32767 30 Instantaneous Volts Phase C 0 530 V 0 32767 31 Frequency 0 100 Hz 0 32767 32 Instantaneous PF Phase A Del 0 1 00 0 32767 D 13 JEMStar User Manual 40 A 5 R RIS RP RI RR Az 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 14 Analog Input Name Description Instantaneous PF Phase A Rec Instantaneous PF Phase B Del Instantaneous PF Phase B Rec Instantaneous PF Phase C Del Instantaneous PF Phase C Rec Instantaneous PF Poly Del Instantaneous PF Poly Rec Volts THD Phase A Volts THD Phase B Volts THD Phase C Amps THD Phase A Amps THD Phase B Amps THD Phase C Volts Phase A Volts Phase B Volts Phase C Amps Phase A Amps Phase B Amps Phase C Amps Poly Instantaneous Watts Phase A Bidirectional Instantaneous Watts Phase B Bidirectional Instantaneous Watts Phase C Bidirectional Instantaneous Watts Polyphase Bidirectional Instantaneous VARs Phase A Bidirectional Instantaneous VARs Phase B Bidirectional Instantaneous VARs Phase C Bidirection
64. 255 Units Seconds Default 50 S8 Comma Pause Time S8 defines the duration of the pause initiated by a comma in the dialing string The pause is generally used when waiting for a second dial tone Range 1 to 255 Units Seconds Default 50 S9 Carrier Detect Response Time S9 establishes the length of time the remote modem s carrier must be present to be recognized as valid Range 1 to 255 Units 0 1 Seconds Default 6 S10 Carrier Off Disconnect Delay S10 selects how long carrier must be lost before the modem disconnects Note If S10 is smaller than the value of S9 the modem will not automatically disconnect on loss of carrier Range 1 to 255 Units 0 1 Seconds Default 14 S11 Tone Dialing Speed S10 sets the duration and spacing of the dialing tones S11 does not affect the pulse dialing rate Range 50 to 255 Units 1 Millisecond Default 95 12 Escape Code Guard Timer S12 sets the escape sequence guard timer If characters are received before or after the escape sequence within the guard timer the modem aborts the escape attempt and remains in data mode Range 0 to 255 Units 0 02 Seconds Default 50 A 10 14 General Bit Mapped Options S14 reflects the state of several AT commands Bit 0 4 6 Not Used Bit 1 0 Echo Disabled ATEO 1 Echo Active ATE1 Bit 2 0 Send Result Codes 1 No Result Codes ATQ1 Bit 3 0 Numeric Result Codes ATVO 1 Full Word Result Codes ATV1 Bit
65. 26 24 10 490 245 163 122 98 81 70 61 54 49 44 40 12 588 294 196 147 117 98 84 73 65 58 53 49 15 736 368 245 184 147 122 105 92 81 73 66 61 20 981 490 327 245 196 163 140 122 109 98 89 81 30 Pd 736 490 368 294 245 210 184 163 147 133 122 60 e Fd 981 736 588 490 420 368 327 294 267 245 Table 2 Approximate Number of Days of Load Profile Storage 4 Channel Standard Interval Number of Load Profile Length Channels Used minute 1 2 3 4 5 1 17 8 5 4 2 34 17 11 8 3 51 25 17 12 4 68 34 22 17 5 6 85 42 28 21 102 51 34 25 10 170 85 56 42 12 204 102 68 51 15 256 128 85 64 20 341 170 113 85 30 512 256 170 128 102 542 341 256 JEMStar will record certain events in the Load Profile system intermixed with regular interval data Any event that would end a Load Profile interval will be recorded including the following 101 JEMStar User Manual Power Fail Indicates that the meter has lost auxiliary power If the meter does not have separate auxiliary power Power Fail indicates the loss of Phase power The time of power failure and time of restoration are recorded Time Set The beginning and end of a time set are recorded in load profile mem
66. 2767 0 32767 0 32767 0 32767 0 32767 0 32767 32768 to 32767 32768 to 32767 32768 to 32767 32768 to 32767 32768 to 32767 32768 to 32767 32768 to 32767 32768 to 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 Appendix D DNP Serial Communications Analog Input Engineering Units Name Description Range Scaled Range Instantaneous Uncompensated 73 VARs Phase C Del 0 10600 VAR 0 32767 Instantaneous Uncompensated 74 VARs Phase C Rec 0 10600 VAR 0 32767 Instantaneous Uncompensated 75 VARs Poly Del 0 31800 VAR 0 32767 Instantaneous Uncompensated 76 VARs Poly Rec 0 31800 VAR 0 32767 77 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase A Del 78 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase A Rec 79 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase B Del 80 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase B Rec 81 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase C Del 82 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase C Rec 83 Instantaneous Uncompensated VA 0 31800 VA 0 32767 Poly Del 84 Instantaneous Uncompensated VA 0 31800 VA 0 32767 Poly Rec Instantaneous Uncompensated PF 85 Phase A Del 0 1 00 0 32767 86 Instantaneous Uncompensate
67. 3 602 Outputs This is view only menu from the meter all edits must be performed using JEM Ware software With the DI DO or 5KYZ option for Contact Outputs installed JEMStar can provide up to five separate output signals Using JEM Ware software each output can be configured for one of the following e EOI End Of Interval pulse e Constant The amount of energy represented by each pulse in either secondary or primary units Ke value e Alarm An output can be triggered either by a Site Alarm or Threshold Alarm e If the contact opens closes when the register value exceeds the upper threshold Note By default the contact reverts to its normal state once the corresponding register value recedes below the lower threshold To view the output settings go to menu I O Outputs then select a Channel number that you want to view The screen will display what each of the four channels has been configured to monitor Contact Input Option This is a view only menu from the meter all edits must be performed using JEMWare software With the DI DO or SK YZ option for Contact Inputs installed JEMStar can accept up to two separate inputs from outside sources Using JEMWare software each input can be configured for one of the following Counter Used to count any pulses Interval Sync Used to accept EOI output pulses from another meter thus keeping demand intervals synchronized TOU Override An input pulse will cause the meter to rev
68. 5 0 Tone Dialing Selected T Pulse Dialing Selected P Bit 7 0 Answer I Originate S16 Test Status S16 shows the modem test status Bit 0 0 No Local Analog Loopback 2 Local ALB Active Bit 1 Not Used Bit2 0 Local Digital Loopback Disabled 2 Local DLB Enabled Bit 3 0 z No Remote Digital Loopback Remote DLB Active Bit4 0 Remote DLB not requested z Remote DLB Requested Bit 5 Remote DLB w Self Test Disabled 1 Remote w Self Test Enabled Bit 6 0 2 Local ALB w Self Test Disabled 2 Local ALB w Self Test Enabled Bit 7 Not Used S18 Test Timer S18 sets the duration of any test If S18 equals 0 AT amp TO terminates the test Range 0 to 255 Units Seconds Default 0 21 General Bit Mapped Options S21 reflects the state of several AT commands Bit 0 2 Not Used Bit 3 4 0 ignored amp 0 1 Enter command mode off amp D1 2 Disconnect on DTR off amp D2 3 Reset on DTR off amp D3 Bit 5 0 2 DCD always active amp 0 2 DCD on with Carrier amp C1 S22 General Bit Mapped Options S22 reflects the state of several AT commands Bit 0 1 0 Low speaker volume ATLO 1 Low speaker volume ATL1 2 Moderate speaker volume ATL2 3 High speaker volume ATL3 Bit 2 3 0 Speaker off ATMO 1 Speaker off with carrier ATM1 2 Speaker always on ATM2 3 Speaker on during handshake ATM3 Bit 4 6 0 Basic Result codes 4 Connect spee
69. 5 36 5 0 5 0 855 Test Mode End 11 20 00 13 26 13 856 Time Set 11 20 00 13 28 55 19 0 24 0 857 Time Set End 11 20 00 23 54 52 858 Data 11 20 00 23 55 00 1 0 1 0 859 Midnight 11 21 00 00 00 00 37 0 47 0 860 Data 11 21 00 00 05 00 42 0 52 0 861 Test Mode 11 21 00 00 08 02 26 0 32 0 862 Test Mode End 11 21 00 00 10 53 863 Data 11 21 00 00 15 00 29 0 37 0 864 Power Failure 11 21 00 00 15 52 6 0 7 0 865 Power Failure End 11 21 00 00 17 14 866 Data 11 21 00 00 20 00 19 0 24 0 867 Data 11 21 00 00 25 00 35 0 44 0 868 Data 11 21 00 00 30 00 35 0 44 0 869 Data 11 21 00 00 35 00 36 0 44 0 870 Data 11 21 00 00 40 00 35 0 43 0 871 Billing Reset 11 21 00 00 40 51 6 0 8 0 872 Data 11 21 00 00 45 00 29 0 36 0 873 LP Download 11 21 00 00 45 08 104 Chapter 6 Advanced Features DEMAND PREDICTION JEMStar can be purchased with an optional feature that will display Demand Prediction for any measured Peak Demand quantity This includes Watts delivered or received VARs delivered received or per quadrant VA delivered or received Q delivered or received Amps or Amps Squared Demand Prediction is the Demand value that is expected at the end of the present demand interval For example if a level 1000 Watts is applied to the meter for a demand interval the predicted demand at any time during that interval is 1000 Watts See Example 1 At the end of the demand interval the actual demand
70. 767 REG 0A 30011 Instantaneous VARs Phase B Del 0 10600 VAR 0 32767 REG OB 30012 Instantaneous VARs Phase B Rec 0 10600 VAR 0 32767 REG 0C 30013 Instantaneous VARs Phase C Del 0 10600 VAR 0 32767 REG 30014 Instantaneous VARs Phase C Rec 0 10600 VAR 0 32767 REG 30015 Instantaneous VARs Poly Del 0 31800 VAR 0 32767 REG OF 30016 Instantaneous VARs Poly Rec 0 31800 VAR 0 32767 REG 10 30017 Instantaneous VA Phase A Del 0 10600 VA 0 32767 REG 11 30018 Instantaneous VA Phase A Rec 0 10600 VA 0 32767 REG 12 30019 Instantaneous VA Phase B Del 0 10600 VA 0 32767 REG 13 30020 Instantaneous VA Phase Rec 0 10600 VA 0 32767 REG 14 30021 Instantaneous VA Phase C Del 0 10600 VA 0 32767 REG 15 30022 Instantaneous VA Phase C Rec 0 10600 VA 0 32767 REG 16 30023 Instantaneous VA Poly Del 0 31800 VA 0 32767 REG 17 30024 Instantaneous VA Poly Rec 0 31800 VA 0 32767 REG 18 30025 Instantaneous Amps Phase A 0 20 0 32767 REG 19 30026 Instantaneous Amps Phase B 0 20A 0 32767 REG 1 30027 Instantaneous Amps Phase C 0 20 A 0 32767 REG 1B 30028 Instantaneous Amps Neutral 0 20 A 0 32767 REG 1C 30029 l Instantaneous Volts Phase 0 530 V 0 32767 REG 1D 30030 l Instantaneous Volts Phase B 0 530 V 0 32767 REG 1E 30031 Instantaneous Volts Phase C 0 530V 0 32767 REG IF 30032 Frequency 0 100Hz 0 32767 REG 20 30033 Instantaneous PF Phase A Del 0
71. 78 79 Actual Function Actual values and control parameters for user defined tables Limiting Data elements used in the generation of user defined tables Selects data elements used in user defined tables Second User User defined table 2 Defined Third User Defined User defined table 3 Fourth User User defined table 4 Defined igs Fifth User Defined User defined table 5 le ixth User Defined User defined table 6 ed eT EXER User defined table 1 ERI 81 82 83 84 85 87 88 F 8 Appendix ANSI Tables Communication Decade 9 Decade 9 Telephone Control Table Title Description Read No Write 90 Dimension Maximum dimensions for telephone control data Telephone Limiting 91 Actual Telephone Actual dimensions for telephone control data Limiting 92 Global Parameters General parameters for call answer and originate 93 Originate Call originate parameters Communication Parameters 94 Originate Schedule Call out schedule 95 Answer Call answer parameters Communication Parameters 96 Call Purpose Reason for most recent call out 97 Call status Progress of most recent calls to each phone number 98 undefined meme S S F 9 JEMStar User Manual F 10 GLOSSARY Apparent Power The product of the applied voltage and current in an ac circuit Apparent power or volt amperes is not the real power of the circuit because the pow
72. 9 Phasor V 2 or 3 phase voltage vector display no numeric value 10 Phasor A 2 or 3 phase current vector display no numeric value 11 Phasor Vala Phase A voltage and current vector display no numeric value 12 Phasor VbIb Phase B voltage and current vector display no numeric value 13 Phasor Vclc Phase C voltage and current vector display no numeric value 14 BPR Count cumulative number of Billing Period Resets that have occurred 15 Outage Count cumulative number of power outages that have occurred For ID Registers 0 Label 1 User defined label 1 default Meter Name 1 String 1 2 Label 2 User defined label 1 default Administrator 3 String 2 4 Label 3 User defined label 1 default Location 5 String 3 6 Label 4 User defined label 1 default Configuration ID 7 String 4 8 Label 5 User defined label 1 default Account Number 9 String 5 Selector value 9 For Totalization registers the Selection Number contains the number of the Totalization Channel 1 12 that is being displayed Quantity Type The Quantity Type register describes the basic quantity being measured by the Display Register or Load Profile channel Quantity Type is valid only if the associated Reg Type indicates this is a Numeric or Totalization Register MSB gt qqqqeeedddrrrrci lt LSB Where qqqq 15 the base electrical Measurement Quantity 0 Watts Watthours 1 VAR VARhours 2 VA
73. Bit 3 7 Not Used S38 Forced Disconnect Timer S38 sets the delay between receipt of the command to disconnect and the actual opening of the switch hook If S38 is set to 255 the modem disconnects only after its buffers are empty Range 0 to 255 Units 1 Second Default 20 S39 Flow Control Bit Mapped Options S39 shows the modem s flow control status AT amp K Bit 0 2 0 Flow Control Disabled 3 Hardware Flow Control RTS CTS 4 In Band Flow Control XON XOFF 5 Transparent In Band Flow Control 6 Both Hardware and In Band Flow Control Bit 3 7 Not used S40 MNP Bit Mapped Options S40 shows the status of the modem s MNP commands Bit 0 1 0 No to MNP10 conversion AT KO 1 Enable LAPM to MNP10 conversion AT K1 2 Enable LAPM to MNP10 conversion except for LAPM answer mode AT K1 Bit 2 Not Used Bit 3 5 0 AT KO break handling selected 1 1 break handling selected 2 AT K2 break handling selected 3 AT K3 break handling selected 4 AT K4 break handling selected 5 AT KS break handling selected Bit 6 7 0 MNP Block size 64 characters 1 MNP Block size 128 characters 2 MNP Block size 192 characters 3 MNP Block size 256 characters S41 General Bit Mapped Options S41 stores the condition of various AT commands Bit 0 1 0 No Data Compression AT CO0 MNP5 Data Compression AT amp C1 2 V 42bis Data Compression AT amp C2 3 Either MNP5 or V 42bis Data Compression AT
74. C Aux Power In this method the Aux Power input will operate from 90 to 250 VDC and is non polarity sensitive Contact Inputs JEMStar can include an optional feature that consists of two Form A N O contact inputs Each input can be configured to perform any one of the following functions e Input to a pulse counter that is recorded as a channel in Load Profile Each transition make or break is counted as a pulse e Interval synchronization pulse Each make causes the Demand Interval and or Load Profile if so configured to be re synchronized e TOU Rate Override Each make will cause the present Time of Use rate to change to a user configured override billing rate e Status Input Each make break of an external contact can be monitored by the meter and will be logged in the Load Profile data report e Totalization input Each make will be cause a configurable amount of energy to be added to a Totalization register s accumulated total NOTE You may encounter excessive serial communication errors if the JEMStar meter is configured to use Totalization inputs AND the meter is receiving pulses at a high rate While the JEMStar communication protocol uses error checking to prevent data corruption communication times may be extended To temporarily stop the interference disconnect the contact inputs until communication is complete JEMStar does not provide a wetting voltage for the contact inputs the user must provide a
75. CTION The utility metering industry utility companies equipment vendors government and standards agencies has created a standardized method of retrieving meter data The ANSI Standard C12 19 1997 Utility Industry End Device Data Tables or ANSI Tables describes a set of data tables that are used to represent all types of metering data The specification defines the data structures used to represent data involved in the configuration control and reading of utility meters This does not define any process or behavior it is strictly intended for data structure table definitions It is recommended that you review the Standard before operating the JEMStar meter with ANSI Tables Protocol Note that the Standard does not require the entire set of Data Tables to be implemented TABLE ORGANIZATION ANSI Data Tables are numbered and grouped into Decades that are associated with a particular metering function For example Decade 0 Tables 00 09 describes the end device meter configuration identification and procedural capabilities Decade 1 Tables 10 19 describes data sources such as device inputs units of measure etc Individual tables are built from basic data types that are also defined in ANSI C12 19 These basic types include Boolean integer character and floating point representations of various sizes Basic types are collected into arrays and combinations of singles and arrays are collected into tables
76. Date Alternate Registers Num Type Qty Dir Phase Disp Rate Digits Decimal Label 101 Consumpt Watt Del Poly Working Total 6 3 kWh Del Poly 102 Consumpt Watt Rec Poly Working Total 6 3 kWh Rec Poly 103 Consumpt VAR Del Poly Working Total 6 3 kVARh Del Poly 104 Consumpt VAR Rec Poly Working Total 6 3 kVARh Rec Poly R 105 Consumpt VA Del Poly Working Total 6 3 kVAh Del Poly 106 Consumpt VA Rec Poly Working Total 6 3 kVAh Rec Poly 107 Consumpt Q Del Poly Working Total 6 3 kQh Del Poly R 108 Consumpt Q Rec Poly Working Total 6 3 kQh Rec Poly R 109 Consumpt Amp Poly Working Total 6 3 Amph Poly R 110 Instant Watt Del Poly Working 6 1 kW Del Poly R 111 Time Demand Working Demand Time Remain 112 Time Battery Working Days on Battery 113 Status BPR Working BPR Count Test Registers Num Type Qty Dir Phase Disp Rate Digits Decimal Label 201 Consumpt Watt Del Poly Working Total 6 3 kWh Del Poly T 202 Consumpt Watt Rec Poly Working Total 6 3 kWh Rec Poly T 203 Consumpt VAR Del Poly Working Total 6 3 kVARh Del Poly 204 Consumpt VAR Rec Poly Working Total 6 3 kVARh Rec Poly T 205 Consumpt VA Del Poly Working Total 6 3 kVAh Del Poly 206 Consumpt VA Rec Poly Working Total 6 3 kVAh Rec Poly 207 Consumpt Q Del Poly Working Total 6 3 KQh Del Poly T 208 Consumpt Q Rec Poly Working Total 6 3 KQh Rec Poly T 209 Consumpt Amp Poly Working Total 6 3 Amph Poly 210 Instant Watt Del Poly Working 6 1 Inst kW Del Poly T 211 Time Test Wor
77. EMStar Digital Power Meter is a multifunction electricity meter for use in revenue survey and control metering applications JEMSrar is available in a variety of installation styles including Socket base S base A base using an adapter and Switchboard case JEMStar uses DSP Digital Signal Processing techniques to provide advanced metering capabilities and is intended for use in Transmission and Distribution T amp D Tieline or Substation and Generation metering applications It is also intended to serve the Commercial and Industrial C amp I revenue metering market JEMStar incorporates features common to modern electronic polyphase meters including e Real and reactive power and energy measurement Industry standard packaging Display of consumption demand and instantaneous registers Load Profile data collection and storage Serial data communications options for remote retrieval of registers and Load Profile data as well as programming Time of Use metering e Pulse outputs In addition JEMStar offers additional features and options not found in many existing meter products e Apparent power and energy Q measurements Per phase voltage current and phase measurements Summation of energy measured by external devices Totalization Loss Compensation Transformer and Line Voltage and Current Transformer Gain Correction Field Diagnostics Power Quality monitoring Distortion measurement Thermal demand emulation Demand predict
78. Form C contact output Typical Example JS JS 05 R 6 0 20 9 3 05R6020 93 DNP JEMStar Series meter Form 5 Small Switchboard Relay case 60 Hz operating frequency Standard LCD Display Class 20 Internal Modem with Phone Home on Power Failure and RS 485 serial comm 0 1 mA Analog Output Digital Contact Inputs Digital Contact Outputs DNP Distributed Network Protocol v3 0 option Additional Firmware Options Demand Prediction 12 Channels Load Profile 4 are standard DNP 3 0 protocol Modbus protocol Voltage Sag Swell Detection and Logging External Energy Totalization JEMStar User Manual JEMSTAR SPECIFICATIONS Product specifications are subject to change Please consult the factory for updates improvements and new features Meter Forms Form Number Type Form 5 3 wire wye amp delta network Form 6 2 1 2 element wye Form 8 4 wire delta Form 9 4 wire wye Current Classes 2 Amp 0008 2 10 004 10A 20 Amp 004 20A Measured Quantities Integrated quantities Integrated quantities are power measurement quantities that are integrated over time and which may be accumulated Integrated quantities are used for developing Consumption Fixed or Sliding Window Demand Peak or Coincident Load Profile or Pulse Contact outputs JEMStar measures the following integrated quantities e Watthours delivered received per phase
79. G 36 30055 Instantaneous Watts Phase B 10600 to 32768 to Bidirectional 10600 W 32767 REG 37 30056 Instantaneous Watts Phase C 10600 to 32768 to Bidirectional 10600 W 32767 REG 38 30057 Instantaneous Watts Polyphase 31800 to 32768 to Bidirectional 31800 W 32767 REG 39 30058 Instantaneous VARs Phase 10600 to 32768 to Bidirectional 10600 VAR 32767 REG 3A 30059 Instantaneous VARs Phase 10600 to 32768 to Bidirectional 10600 VAR 32767 REG 3B 30060 l Instantaneous VARs Phase C 10600 to 32768 to Bidirectional 10600 VAR 32767 REG 3C 30061 Instantaneous VARs Polyphase 31800 to 32768 to Bidirectional 31800 VAR 32767 REG 3D 30062 Instantaneous Uncompensated Watts 0 10600 W 0 32767 Phase A Del REG 3E 30063 Instantaneous Uncompensated Watts 0 10600 W 0 32767 Phase A Rec REG 3F 30064 Instantaneous Uncompensated Watts 0 10600 W 0 32767 Phase B Del REG 40 30065 Instantaneous Uncompensated Watts 0 10600 W 0 32767 Phase B Rec REG 41 30066 Instantaneous Uncompensated Watts 0 10600 W 0 32767 Phase C Del REG 42 30067 Instantaneous Uncompensated Watts 0 10600 W 0 32767 Phase C Rec REG 43 30068 Instantaneous Uncompensated Watts 0 31800 W 0 32767 Poly Del REG 44 30069 Instantaneous Uncompensated Watts 0 31800W 0 32767 Poly Rec REG 45 30070 Instantaneous Uncompensated VARs 0 10600 VAR 0 32767 Phase A Del REG 46 30071 Instantaneous
80. Ic Press SET to send character out port Not Installed gt Press SET for phasor diagram Press SET for phasor diagram Va Ia Press SET for phasor diagram Vb Ib Press SET for phasor diagram Ve Ic Press SET for phasor diagram Display Display Test ZZ VZ zzzIzizzzgz VZ ZZ 121212 12 KI KE Z 12 2 ZI K IK IK IK IK IK VZ RR K lt lt lt 27 Press SET for display pixel check Only KWH and KVAR registers are editable and the value displayed while editing is the calibration adjustment 5 not the reading 68 Chapter 4 Test amp Calibration To access the Display Menus 1 2 Remove the meter globe this may require breaking seal Turn the globe counter clockwise to disengage it from the base and set it aside Press any one of the four arrow buttons on the right front of the meter and the display will immediately go to the Menu Mode If it does not the Security Key may be removed thus restricting access If your company procedures allow it you can enable access to the front panel Refer to Chapter 5 Maintenance for information about Security Keys The lower portion of the display is now divided into three menu columns Starting at the leftmost column you will see the Settings category highlighted Highlighted areas indicate the selected area that is presently active Using the UP and DOWN arrow but
81. MODBUS registers remaining 2 registers are not used Display Registers only 3 Time Display contains a Time 3 MODBUS registers last register is not used Display Registers only E 29 JEMStar User Manual 4 Long scale Display contains Long 2 MODBUS registers I unused register and the last register is a Scale power of 10 Display Registers only 5 Mod x 3 scale Display contains Mod x 3 3 MODBUS registers and the last register is Scale power of 10 Display Registers only 6 Load Profile channel Display contains one Value 1 MODBUS register one Multiplier 1 MODBUS register and a Scale power of 10 Load Profile channels occupy only 3 MODBUS registers Load Profile channels only dddd is the total number of digits of the value to be displayed Only for Numeric or Totalization Display Registers cccc is the number of decimal places of the value to be displayed and is part of the total number of digits displayed Only for Numeric or Totalization Display Registers Reg ID Number The Identification number assigned by the user to this Display Register or the Load Profile Channel Number The decimal value of this number is displayed with the Display Register Text Description 20 bytes of text padded with nulls that the user assigned to be displayed with this Display Register This will contain all nulls for Load Profile channels E 30 APPENDIX F ANSI TABLES COMMUNICATION INTRODU
82. N E PR NH al 90 SN 93 Firmware Upgrades EDU E 95 Health keen 95 TN NNN 96 Installation Site Verification esses 96 Installation Site enne 97 Advanced Feat F s deterret eter etae Ee Ye Se ep ve ea stiess ossosa snode 99 Taie of eet tet abet b bet ek oet 99 Load Pro tile xcu cte ie Me x 100 Typical Load Profile e tates et at dtt 104 Demand Predict Oi sce eee aes a a ee erts rU ated 105 Voltage and Current Transformer Gain Correction eese 108 Voltage Sag Swell Detection Log eere eter tee eeu etu snb nana 109 ASCIENDE UU badet best buntet 113 Appendix JEMStar Default Settings esvsesevvevsvvvesesvvesvrvensvevenesesensevenenesenesesssevenesesssneneneser 1 Meter Identification r rrrnnnrrrroonnrrrrronnnrrrronnnrrrrrnnnnrrernnnnrrnssnnnnrnssnnnnrnsssnnnrssssnnnnnnssnnnnnssssnnn 1 Primary irene S CD RA ne 1 2 Profile e e t Li ns 3 Tine STEG 3 Timekeeping JOS TC ME 3 Alarnis cC 3 Contact Input eae ee AeA ee Ree NESEN tdt IP ehe 4 amor Ups 4 4 Serial Communica
83. O5Ato1A 0 6 RD Class 2 Class 10 Class 20 Amp Hours Input Current Input Current Input Current Accuracy per phase 10A 2A1020A 0 3 RD polyphase total 1Ato2A 1A102A 1 0 RD 0 5 Ato 1A 0 5Ato 1A 3 0 RD Measured Quantity Instantaneous Power Factor per phase 0 004 FS VAphase Instantaneous Power Factor system Form 5 0 004 2FS VAsystem Form 6 8 9 0 004 3FS VAsystem Volts THD 1 0 absolute Amps THD 1 0 absolute 10 Loss Compensation Type Features Compensation Characteristics Loss Compensation On Registers Chapter 1 General Information Transformer Loss Compensation TLC Line Loss Compensation LLC Separate coefficients for delivered and received power User configurable Line Watt loss Transformer copper Watt loss Transformer copper loss Transformer iron Watt loss Transformer iron VAR loss Watts Watthours VARs VARhours VA V Ahours Qhours NOTE Registers Load Profile channels or KYZ Pulse outputs that are individually selected to be uncompensated in JEM Ware have the following accuracy modifications Class 10 20 Class 2 current accuracy modifier add to current range range accuracy listed above 0 3A to Class 0 03A to Class add 0 05 of reading Amps Amps up to 0 3A up to 0 03A add 0 10 of reading For example an uncompensated Watthour register
84. Pmili Im m percent milli Lon percent mil percent il percent il percent Lon percent Long percent milli Long E 16 pup 5 5 ga joa 099 on ga go Appendix E MODBUS Communications MODBUS JEMStar Parameter Units Format Number of Register Registers 1049 Volts phase B C 2 1051 Volts phase C A 2 W Delivered phase Primary W Delivered phase B Primary W Delivered phase Primary 1059 W Delivered polyphase Primary Long 2 xW milli 1061 Real Apparent Power UOM to Kilo conversion factor 1 1062 VAR Delivered phase A Pri xVAR Lang 2 milli 1064 VAR Delivered phase B Pri xVAR Long 2 milli 1066 VAR Delivered phase C Pri xVAR 2 milli 1068 VAR Delivered polyphase Pri 2 1070 Reactive Q Power UOM to Kilo Conversion Factor 1 1071 Delivered phase A Pri milli 2 1073 VA Delivered phase Pri xVA milli 2 1075 Delivered phase C Pri milli 2 1077 VA Delivered polyphase Pri xVA milli 2 1079 Real Apparent Power UOM to Kilo conversion factor 1 W Received phase Primary W Received phase B Primary W Received phase C Primary 1086 W Received polyphase Primary fars 2 xW milli 1088 Real Apparent Power UOM to Kilo conversion factor 1 1089 VAR Received phase A Pri xVAR aay 2 milli 1091 VAR Received phase B Pri xVAR Long 2 milli 1093 VAR Received phase C Pri xVAR Long 2 milli 1095 VAR Received
85. REG 33 40052 S 1000 Normal Reg 20 Lo REG 34 40053 S 1000 Normal Reg 21 Hi REG 35 40054 S 1000 Normal Reg 21 Lo REG 36 40055 S 1000 Normal Reg 22 Hi REG 37 40056 S 1000 Normal Reg 22 Lo REG 38 40057 S 1000 Normal Reg 23 Hi REG 39 40058 S 1000 Normal Reg 23 Lo REG 3A 40059 S 1000 Normal Reg 24 Hi REG 3B 40060 S 1000 Normal Reg 24 Lo REG 3C 40061 S 1000 Normal Reg 25 Hi REG 3D 40062 S 1000 Normal Reg 25 Lo REG 3E 40063 S 1000 Normal Reg 26 Hi REG 3F 40064 S 1000 Normal Reg 26 Lo REG 40 40065 S 1000 Normal Reg 27 Hi REG 41 40066 S 1000 Normal Reg 27 Lo REG 42 40067 S 1000 Normal Reg 28 Hi REG 43 40068 S 1000 Normal Reg 28 Lo REG 44 40069 S 1000 Normal Reg 29 Hi REG 45 40070 S 1000 Normal Reg 29 Lo REG 46 40071 S 1000 Normal Reg 30 Hi REG 47 40072 S 1000 Normal Reg 30 Lo REG 48 40073 S 1000 Normal Reg 31 Hi REG 49 40074 S 1000 Normal Reg 31 Lo REG 4A 40075 S 1000 Normal Reg 32 Hi REG 4B 40076 S 1000 Normal Reg 32 Lo REG 4C 40077 S 1000 Normal Reg 33 Hi REG 4D 40078 S 1000 Normal Reg 33 Lo REG 4E 40079 S 1000 Normal Reg 34 Hi REG 4F 40080 S 1000 Normal Reg 34 Lo REG 50 40081 S 1000 Normal Reg 35 Hi REG 51 40082 S 1000 Normal Reg 35 Lo REG 52 40083 S 1000 Normal Reg 36 Hi REG 53 40084 S 1000 Normal Reg 36 Lo REG 54 40085 S 1000 Normal Reg 37 Hi REG 55 40086 S 1000 Normal Reg 37 Lo REG 56 40087 S 1000 Normal Reg 38 Hi REG 57 40088 S 1000 Normal Reg 38 Lo REG 58 40089 S 1000 Normal Reg 39 Hi REG 59 40090 S 1000 Normal Reg 39 Lo REG 5A 40091 S 100
86. Switchboard Meters Cover Removal 1 Remove power from the meter if possible It is not mandatory that power is removed because the Switchboard meter has its own disconnect device However caution is advised since live terminations exist inside the housing even after the paddle is removed 2 Remove the wire seal on the thumbscrew at the bottom center of the meter cover 3 Unfasten the thumbscrew and lift the cover slightly while pulling forward from the bottom Internal Chassis Removal 1 Locate the black plastic paddle at the bottom of the chassis Grasp the protruding handle section and firmly pull it toward you This will safely disconnect and bypass the CT circuits from the meter 2 Locate the upper and lower metal locking latches At the same time pull both the upper and lower tabs towards you until the levers are pointed straight out about 90 swing 3 Grasping the levers gently rock the chassis while pulling forward When the chassis is loose remove it from the housing You can now take the entire chassis to your service shop When re installing the meter note that the thumbscrew on the front cover has small indentation on the head This indicates the orientation of the hole in the screw for inserting the sealing wire Turn the screw until the dot is in horizontal position and the hole in the screw will line up with the hole in the plastic cover Serviceable Parts The JEMStar s communication board and I O board c
87. Switchboard case e Adapter to convert S base meter to bottom connected A base style Size and Weight e 5 base 5 5 pounds e Meter with A base adapter 7 5 pounds e Small switchboard case 11 5 pounds EE 8 00 Measurement reference plane is the bottom of the socket base outer lip 6 93 S Base Meter Dimensions 23 JEMStar User Manual A Base Mounting For 10 12 Screw in accessible position the hanger bracket must be rotated 180 For 10 12 Screw Wo places M d 7 18 7 03 WITH COVER REMOVED Adjustable top bracket provides 2 top hole locations as noted A Base Adapter Mounting Dimensions With S base meter installed total depth in front of mounting panel is 10 25 IMPORTANT When installing the meter locking ring on the A base adapter be sure that the ground tab on the right side of the adapter is securely fitted under the ring Ground tab Ring mounted correctly with tab underneath 24 Chapter 2 Installation Switchboard Case Mounting 6 80 6 19 44 k 2 13 Switchboard Case Meter Dimensions Panel Cutout Dimensions 5 69 25 DIA 2 84 X 4 Places i 04 8 63 8 25 4 31 4 13 Y Y Y Y 3 03 6 06
88. Test Mode Test Pulse may occasionally interfere with the meter s response to commands The meter is capable of receiving and executing commands during Test Mode only the response may be garbled The normal Binary Protocol error checking and retry mechanism will provide reliable communication in this situation JEMStar Test Pulse Output It is important to wait 15 seconds after application of potential before entering Test Mode Otherwise the meter may not produce test pulses in Test Mode If the meter is suspected of not producing test pulses scroll through Test Mode to the function under test after 15 seconds of power on time 86 MAINTENANCE Any JEMStar option except for those noted as factory configuration or configured at manufacture can be installed by a user with the following capabilities e Intermediate skill as an electronic technician including knowledge of static protection and electrical safety techniques e Familiar with the proper use of common tools e g screwdrivers wire strippers or cutters wrenches etc and equipment e g voltmeter used in electronics including static reduction equipment such as grounding straps or mats Soldering equipment is NOT required The JEMStar meter design with its plug together boards requires few tools for maintenance Caution All meter work must be performed at static protected workstations WITH POWER REMOVED The technician must follow properly prescribed sta
89. Time in minutes past midnight to Always 0 for JEMStar Time synchronize record entry update intervals to Current Records in Current number of records in the file Managed by JEMStar Maximum 200 File sequence number in the file o 32000 Current last record urrent last newest record sequence Managed by JEMStar Ranges from 1 sequence number in the file o 32000 Date Time of last file Date Time of last file reset clear in 3 Date amp Time at which JEMStar Load reset clear register format Profile was reinitialized reconfigured File size allocated during last file resize same as Offset 2 ecord size in registers allocated during same as Offset 3 he last file resize including the date time stamp allocated file size and record size Cont WFC Segment Continuous WFC segment limit may be set N A 32768 Delay in range 1 5 N A 32768 hen continuous WFC occurs Applicable only to the Cont WFC File Only Reserved for all others file sequence number stored at Offset 9 21 Newest Record Register number at start of newest record in Location of record corresponding to file sequence number stored at Offset 10 E 25 JEMStar User Manual Reg Desc Each JEMStar Display Register and Load Profile Channel has a corresponding Register Description Reg Desc that tells the host system how to interpret its data Every Register Description contains 15 MODBUS registers that fully describes the Display or L
90. Uncompensated VARs 0 10600 VAR 0 32767 Phase A Rec REG 47 30072 Instantaneous Uncompensated VARs 0 10600 VAR 0 32767 Phase B Del REG 48 30073 Instantaneous Uncompensated VARs 0 10600 VAR 0 32767 Phase B Rec REG 49 30074 Instantaneous Uncompensated VARs 0 10600 VAR 0 32767 Phase C Del REG 4A 30075 Instantaneous Uncompensated VARs 0 10600 VAR 0 32767 E 14 Appendix E MODBUS Communications MODBUS PLC Register Contents Engineering Scaled Address Address Units Range Range REG 4B 30076 Instantaneous Uncompensated VARs 0 31800 VAR 0 32767 Poly Del REG 4C 30077 Instantaneous Uncompensated VARs 0 31800 VAR Q 32767 Poly Rec REG 4D 30078 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase A Del REG 4E 30079 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase A Rec REG 4F 30080 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase B Del REG 50 30081 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase B Rec REG 51 30082 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase C Del REG 52 30083 Instantaneous Uncompensated VA 0 10600 VA 0 32767 Phase C Rec REG 53 30084 Instantaneous Uncompensated VA 0 31800 VA 0 32767 Poly Del REG 54 30085 Instantaneous Uncompensated VA 0 31800 VA 0 32767 P
91. a JEMStar DI DO Board Each DI DO output can be configured to perform any one of the following functions Energy pulse output configurable for any consumption quantity or energy constant End of Demand Interval Output the output will close for one second when a demand sub interval closes Site Monitoring Alarm output the output will close when a Site Monitoring alarm condition is detected Threshold Alarm output the output will close when the selected Register exceeds a user configured upper setpoint The output will re open when the Register falls below a user configured lower setpoint Sag Swell Alarm output the output will close if the optional Sag Swell Detection system determines that a voltage sag or swell event is in progress System Error Alarm output the output will close if a meter System Error condition is present JEMStar does not provide a wetting voltage for the contact outputs external wetting must be applied The JEMStar contact closure outputs meet the following specifications Maximum open circuit voltage is 200 volts DC or peak AC Maximum closed circuit voltage drop is 2 5 volts at 30 mA In the closed state the contact will conduct in either direction The maximum current rating for a closed contact is 50 mA The contact outputs are TTL compatible when used with an external 4700 ohm pull up resistor to an external 5VDC source Maximum output rate is 20 transitions per second A transition is defined
92. a and a third simultaneous user has access to all data and configuration settings The JEMWARE configuration software can connect to the meter via ethernet serial or optical port Ethernet connections are provided through a standard RJ45 jack J100 a 20 JT fer 1 i 15 g s nen pi CiEDIEDRG uv md a m RF8 D o ome F7 rz C52 i four amp mncea vna sC ss FAULT JUMPER SETTINI R68 J8 DEFAULT JUMPER SETTING T m OG np 2050000 m OUT 16 c24 rp ee VW epi reo a 2 3 cig u cia C22 C21 3 ESL 0000 2E mn os 3 7o 485 232 cn MODE amp 5 N Ne c27 C28 fis e o o VRA4 JEMStar Ethernet Serial Communication Board RS 485 Terminators Set the terminator J5 to IN for the last channel in an RS 485 chain Set the terminator to OUT for all RS 232 applications 58 External Ethernet Connections Socket and A Base housing The connections are brought out on standard 8 pin RJ 45 jack Ethernet Pin Number Signal 1 Tx 2 Tx 3 Rx 6 Rx NETWORK CONNECTION OPTION NEN J IRN 7 METER Chapter 2 Installation 10BASE T RJ45 1 BLAC CABLE x LACK i B A Tx RED e 2 Rx GREEN TO Rx YELLOW NETWORK PORT
93. age configurable via JEMWare software 200V DC or peak AC 2 5 V at 30 mA max 50 mA External 4 7 pull up to 5Vde User configurable to monitor Any consumption quantity 13 JEMStar User Manual Max Rate of Operation Test Outputs Type Contact Inputs Option 14 Quantity Type Minimum ON Voltage Maximum ON Voltage Maximum Input Current Maximum Pulse Rate Usage Energy pulse constant KYZ mimic Site Monitor alarm Threshold alarm Demand Sync Voltage Sag Swell alarm System Error alarm 20 transitions per second e g 10 full close open pulse cycles per second IR LEDs test outputs are provided through the optical port transmitter which becomes a test output when the meter is in the test mode Two independent inputs Two wire Form A contact inputs require an external 4 current to activate photo transistor 10 Vdc 40 Vde 50 mA 10 transitions per second User configurable for Pulse counter Interval Synchronization Pulse TOU Rate Override Status Input Totalization input Registers Instantaneous Registers Characteristics Displayed Quantities Per Phase and Polyphase Per Phase Phase A only Consumption Registers Characteristics Displayed Quantities Per Phase and Polyphase Display scaling Preset Register Retrieval Totalization Registers optional Characteristics Chapter 1 General Information Updated every 1 5
94. aining a 16 bit binary value The CRC value is calculated by the transmitting device that appends the CRC to the message The receiving device recalculates the CRC and compares it to the value in the message If the values are not the same the receiver will not process the message The CRC value is calculated according to the following procedure 1 Initialize a 16 bit CRC register to OXFFFF 2 Place the first 8 bit character from the message and place it into fest register 3 Exclusive OR the test character with the CRC register leaving the result in the CRC register 4 The CRC register is shifted one bit toward the least significant bit the least significant bit is saved into a carry register and the most significant bit is zero filled 5 If the old least significant bit was zero to step 6 if it was one register is exclusive ORed with 0xa001 6 Repeat steps 4 and 5 seven times 7 Using each successive character in the message repeat steps 3 through 6 8 The CRC is the value in the CRC register 9 The CRC value is placed into the message in hexadecimal format with the most significant byte going into the first CRC byte and the least significant byte going into the last CRC byte E 3 JEMStar User Manual RTU Message Framing In RTU mode messages start with a silence interval of at least 3 5 character times Ifthe SLAVE device can monitor the network bus continuously this silence interval can be used
95. al Instantaneous VARs Polyphase Bidirectional Instantaneous Uncompensated Watts Phase A Del Instantaneous Uncompensated Watts Phase A Rec Instantaneous Uncompensated Watts Phase B Del Instantaneous Uncompensated Watts Phase B Rec Instantaneous Uncompensated Watts Phase C Del Instantaneous Uncompensated Watts Phase C Rec Instantaneous Uncompensated Watts Poly Del Instantaneous Uncompensated Watts Poly Rec Instantaneous Uncompensated VARs Phase A Del Instantaneous Uncompensated VARs Phase A Rec Instantaneous Uncompensated VARs Phase B Del Instantaneous Uncompensated VARs Phase B Rec wo e Engineering Units Range 0 1 00 0 1 00 0 1 00 0 1 00 0 1 00 0 1 00 0 1 00 0 100 96 0 100 96 0 100 96 0 100 96 0 100 96 0 100 96 0 280900 V 0 280900 V 0 280900 V 0 400 A 0 400 A 0 400 A 0 1200 10600 to 10600 W 10600 to 10600 W 10600 to 10600 W 31800 to 31800 W 10600 to 10600 VAR 10600 to 10600 VAR 10600 to 10600 VAR 31800 to 31800 VAR 0 10600 W 0 10600 W 0 10600 W 0 10600 W 0 10600 W 0 10600 W 0 31800 W 0 31800 W 0 10600 VAR 0 10600 VAR 0 10600 VAR 0 10600 VAR Scaled Range 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 32767 0 3
96. al point is shifted to the right to make sure the most significant digits are displayed despite the user s configuration For example an Instantaneous Watt register may be configured by the user to show 6 total digits and 3 decimal places Without auto ranging this could be problem if the quantity exceeds 999 999 W because the most significant digits would not be displayed However JEMStar will auto range by moving the decimal to the right and allowing greater quantity to be displayed Therefore each register type can be categorized into one of three behaviors Auto Ranging User Configured Format Fixed Format potential overflow unaffected by user configuration Instantaneous Consumption Time of Peak Average PF Cumulative Peak Demand Date of Peak Peak Demand Continuous Cumulative Demand Coincident Demand Thermal Demand Peak Thermal Demand Predicted Demand The user may choose to display Consumption Peak Demand Coincident Demand Cumulative Demand Continuous Cumulative Demand and Predicted Demand with leading zeroes In this event Auto Range is not applied to any of these register types 71 JEMStar User Manual CHANGING METER CONFIGURATIONS The meter front panel offers some basic setup features however you will use JEMWare software to make most changes in a meter configuration Please refer to Publication 1083 602 for complete details about using the program Certain fea
97. ally answer on the nth ring Setting S0 to 0 disables automatic answer Range 0 to 255 Units Rings Default 0 1 Ring Count S1 is a read only register showing the number of rings detected If a ring is not detected within 8 seconds S1 is reset to zero Range 0 to 255 Units Rings Default 0 S2 Escape Character S2 determines the ASCII escape character Values of 0 127 select valid ASCII escape characters values from 128 to 255 disable the escape sequence Range 0 to 255 Units ASCII Character Default 43 S3 Carriage Return Character S3 determines the ASCII character to serve as a carriage return to terminate commands and modem responses Range 0 to 127 Units ASCII Character Default 13 Carriage Return S4 Line Feed Character S4 sets the ASCII character to act as a line feed character in modem responses Range 0 to 127 Units ASCII Character Default 10 Line Feed S5 Back Space Character S5 defines the ASCII character used as a backspace to edit the command line Range 0 to 32 Units ASCH Character Default 8 Back Space A 9 JEMStar User Manual S6 Dial Tone Wait Time S6 determines how long the modem waits for dial tone before dialing begins The Dial Tone Wait Time cannot be set to less than two seconds Range 210255 Units Seconds Default 2 S7 Wait for Carrier after Dialing S7 determines how long the modem waits for a valid carrier signal after dialing is completed Range 1 to
98. an be changed in the meter shop with few simple procedures Because the register metrology board is calibrated to the current transformers and power supply board Ametek Power Instruments recommends that the meter be returned to the factory if changes to these components are necessary The JEMStar clock RAM battery is designed to last the life of the meter under normal storage and usage conditions If the battery needs replacement or you would like more information on any JEMStar components call Ametek Power Instruments Technical Support staff at 888 880 5361 Serial Communication Board Option gt To remove the serial comm board 1 Remove power from the meter 2 Ensure proper grounding for static protection 3 Remove the globe from the S base or A base meter Remove the cover from the switchboard case meter and pull the chassis out of the rack Remove the top housing cover as previously described S base and A base only Disconnect the ribbon cable between the Register Metrology and Comm board Pull the Comm board out part way Disconnect the modem cable from the Comm board if included Pull the Comm board completely free of the meter Place the Comm board on an antistatic mat OSE Ne gt To replace the serial comm option board 1 Reverse the procedure above 90 Chapter 5 Maintenance I O Board gt To remove the I O option board 1 Remove power from the meter 2 Ensure proper grounding 3 Remove the g
99. and Interval Length Preset Register Retrieval Coincident Power Factor Displayed Quantities Thermal Demand Registers Types Displayed Quantities Per Phase and Polyphase Per Phase Phase A only Chapter 1 General Information W Del W Rec VAR Del VAR Rec VA Del VA Rec VAR per quadrant A Q Del Q Rec In secondary at meter terminals or primary at PT CT input units Matches the corresponding Peak Demand length Any desired value that may be displayed By serial communications Average PF over the Demand Interval in which a Peak Demand was established Thermal Demand Peak Thermal Demand Time of Peak Thermal Demand W Del W Rec VAR Del VAR Rec VA Del VA Rec VAR per quadrant Volts A Q Del Q Rec PF Volts THD Amps THD Frequency Demand Prediction Registers optional Displayed Quantities Per Phase and Polyphase Periodic Self Read Records Displayed Storage Configurable for W Del W Rec VAR Del VAR Rec VA Del VA Rec VAR per quadrant Amp Q Del Q Rec Date and time of the Self Read Health Status summary Up to 4 Registering quantities Up to the 36 most recent Self Read records Every Demand Sub Interval Closure Every Hour Every Day Every Month Every Billing Period Reset 17 JEMStar User Manual Status Registers Storage Time of Use Registers Description Load Profile Displayed Quantities Per Phase and Polyphase Description 18 Time dat
100. ar for 20 years JEMStar can be configured to force the present TOU rate in effect to any other programmed rate by triggering contact closure input The user must select rate 1 8 or Total to switch to when closure is detected on the input The rate then reverts to the normal scheduled rate when the contact opens To configure a meter for Time of Use functions consult the JEMWare instruction manual 1083 602 99 JEMStar User Manual LOAD PROFILE JEMStar can record up to 4 Load Profile channels as standard feature or up to 12 channels as an added option All Load Profile configurations are performed using JEM Ware software Load Profile storage is such that if the available memory becomes full the oldest record s are deleted from memory to make room for the most recent JEMStar stores one single record at the end of each Load Profile interval Load Profile interval may end on any of the following conditions e On the hour if configured for internal Load Profile synchronization and each multiple of the configured Load Profile interval length after the hour Load Profile intervals may be configured to be 1 5 10 15 20 30 or 60 minutes in length e On any time set Daylight Saving Time adjustment recognizable power outage or other event that would cause a discontinuity in interval timing e On any event that may cause a discontinuity in registration so that register readings and equivalent Load Profile readings
101. ark of Schneider Systems Inc Quantum is a registered trademark of Schlumberger Industries Inc Table of Contents General Information sereerornveevernneenesnneenennnennennnennnvenennnennennnennennnennenenennennsennsenennnennennnsenesnneenne 1 JEMStar Meter Overview aure eee ha 1 Supporting 2 Tone 3 Event Recording s eene no dene ae mE ee 4 Model Descriptio ete 5 JEMStar S pecilications e et P eased 6 Meter ente tede detta dated etes stt 6 Measured Quantities eene eene nennen neret ese nennen rennen tnnt nnne 6 Optional Features etie ette etie e bert ee t eed 7 Input Range Limits ARRA ARN ORNA ORI at d needa ph ERROR RERBA HAE 7 PRC CULACY ws ase P 8 11 En 11 Temperature Operate Ranges ee en i Due uere tele 12 Frequency et ette eue te e eee Pone ue t eon Cre ee oe oben 12 ClOCK ACCURACY pr ER e PER AEG 12 Meter Creep aa 12 Analog Outputs Optoma sete 13 Pulse Contact Alarm Outputs Option uie e e AR RA HERR RR FEAR HAERES 13 Test Outputs t rete E NOR E 14 Contact Inputs Option kst 14 Fer 15 Communication escas totes 19 Enviro
102. ase within the meter The data base contains information that allows the meter to determine the present TOU period based upon the real date and time of the meter VA Volt Amperes or Volt Amps the product of voltage and current in a circuit regardless of phase Typically expressed in RMS units this is also called apparent power JEMStar calculates VA vectorially VA Watts VARS VAh VA hour VA integrated over time to produce a measurement that may be accumulated VAR Volt Amps Reactive the product of voltage and current in a circuit times the sine of the phase shift between the two Typically expressed in RMS units The unit of reactive or imaginary power VARh VAR hour VAR integrated over time to produce a measurement that may be accumulated G 6 Glossary W Watt the product of voltage and current in a circuit times the cosine of the phase shift between the two Typically expressed in RMS units The unit of real power Wh Watt hour W integrated over time to produce measurement that may be accumulated G 7 PROCEDURES FOR FACTORY REPAIR AND RETURN A Obtain Returned Material Authorization RMA number by calling the AMETEK Repair Department and giving the following information Model and Serial Number of the equipment Failure Symptom Be Specific Approximate date of installation The site name and address of the failed equipment Complete shipping information for the return of the equip
103. asurements was 493 75 watts That average times 16 minutes equals 7900 watt minutes The most recent Instantaneous measurement taken at 16 minutes into the interval is 100 watts Assume the average power of the remaining 14 of 30 measurements is 100 watts a level load One hundred watts times 14 minutes 1400 watt minutes Added to the 7900 watt minutes from before the total is 9300 watt minutes Divided by 30 total minutes the Predicted Demand is 310 watts 106 Chapter 6 Advanced Features Varying Load Prediction dA ment I HII Hoo N tite vos Remaining Example 3 Predicted demand with varying load further update Continuing in the same demand interval from Example 2 At 25 minutes into the demand interval the average of 25 Instantaneous measurements was 576 watts That average times 25 minutes equals 14 400 watt minutes The most recent Instantaneous measurement taken at 25 minutes into the interval is 700 watts Assume the average power of the remaining 5 of 30 measurements is 100 watts a level load Seven hundred watts times 5 minutes 3500 watt minutes Added to the 14 400 watt minutes from before the total is 17 900 watt minutes Divided by 30 total minutes the Predicted Demand is 596 67 watts 107 JEMStar User Manual VOLTAGE AND CURRENT TRANSFORMER GAIN CORRECTION The JEM Star meter may be adjusted to compensate for gain errors in external voltage and current
104. ayed recorded as a Load Profile channel or both To display a Totalization channel add a register to the desired Display List Normal Alternate or Test in JEMWare with a Category of Totalization and select the desired Totalization channel number in the Type field You may then set up the number of digits and decimal places storage type and label as for any other 113 JEMStar User Manual numeric register To record a Totalization channel in Load Profile add a Profile channel in JEMWare In the Quantity field select the desired Totalization channel number The Km Direction and Phase settings will be bypassed but you may still select whether to record always or only during TOU Rate Override TIP Normally Load Profile channels may not be associated with Time of Use rates other than Total However you may simulate Load Profile channel that records only during given rate period by assigning it to Totalization channel with the correct rate The Totalization channel need not record any external energy making it essentially identical to an integrated Load Profile channel 114 APPENDIX JEMSTAR DEFAULT SETTINGS The following is list of the factory default settings that will be seen in a JEMStar meter after a Cold Start is performed Use JEM Ware software to program the meter with your custom configuration Meter Identification ID String 1 meter name ID String 2 administrator ID String 3 location ID String
105. cal computer shop for replacements Tip You can park the jumper in a disconnected position by just plugging it onto one contact This will keep the jumper in the meter for future use Firmware Upgrades New meter firmware can be downloaded remotely via the meter s serial port or modem if equipped This may be used to add optional features product enhancements or program upgrades Contact the factory for more information and assistance Health Diagnostics The JEM Star health status register provides an indication of the operating ability of the meter This is one of the status registers that can be displayed in either of the registering display modes Normal or Alternate An E on the JEMStar s display indicates that a health condition is present and that the health status register should be viewed 17 fate I Coinc PE Watt E JEMStar Front Panel Display Health Status Error The JEMStar meter should never have a health status error however in the unlikely event contact AMETEK for assistance in interpreting the situation 95 JEMStar User Manual SITE DIAGNOSTICS JEMStar can be configured to monitor its operating environment and report suspicious conditions This monitoring occurs in two forms Installation Verification and Installation Monitoring Installation Site Verification JEMStar has an operating mode called Installation Verification during which the meter makes and displays continuous readings
106. ch the event occurred e A description of the type of event e The counts for each configured channel from the beginning of the interval until the event occurred e If applicable the time at which the event ended such as for a Time Set or power outage Load Profile Retrieval Load Profile may be retrieved in any of the following segments e All complete Load Profile records in memory oldest first 102 Chapter 6 Advanced Features e All complete Load Profile records since the last Load Profile read oldest first e All Load Profile records for the last N days for N 0 through 60 For any number of days requested the meter will send that number of complete day s records plus whatever records have been stored in the current day For example requesting 0 days gives only today s records since midnight Requesting 2 days gives all records for the preceding 2 days plus the present day s records If the Load Profile memory does not contain enough days of records to fulfill the request the meter will send all records presently stored Data can be retrieved with Ametek Power Instruments JemRead software or by Itron s MV 90 software Connection to the meter can be via the optical port RS 232 RS 485 serial port or modem The command protocol specifications that defines the data transfer method is public domain and can be obtained from the factory ask for Publication 1083 603 Ametek Power Instruments recommends that only experie
107. circuitry for example ratio errors in external voltage or current transformers This correction may be done without tampering with the actual meter calibration as established at the factory or any local meter calibration adjustments made in Test Mode Transformer gain correction is set in JEM Ware from the Primary Configuration screen The user may enter gain correction from 10 00 to 10 00 in 0 01 increments for each voltage and current input These corrections are applied directly to measured voltages and currents before any further computation is performed therefore they affect virtually all quantities in the meter Like the Test Mode calibration adjustments the transformer gain correction is lost if a Cold Start or Firmware Upgrade is performed Unlike the Test Mode calibration adjustment the transformer gain correction is stored as part of a JEMWare configuration file Therefore it is important to check the gain correction figures whenever a configuration file is shared among several meters Changing the gain of a voltage or current input will cause any single phase measurement using that input to increase or decrease by the amount of the change For example changing the Phase A Volts by 1 00 will cause all Phase A measurements to read 1 high except for amp quantities Polyphase measurements will change by the average of the changes made to each individual phase For example if Phase A Volts is changed by 1 00 Phase B Volts b
108. conditions is exceeded There is a separate indicator for each of the four Threshold settings Site Monitor Appears in the bottom row when one of the user configured Site Monitor conditions is in effect COLD START If JEMStar circuit boards have been replaced or software options have been installed a cold start procedure must be performed A cold start erases all register and load profile data The communication and configuration parameters are reset to factory defaults see Appendix A Upgrading JEMStar operating firmware automatically performs a cold start at the end of the upgrade procedure After a Cold Start is performed the meter should be reconfigured using JEMWare configuration software to program the meter for your specific application Warning Performing a Cold Start will cause a loss of data To perform a cold start l Remove power from the meter and then remove the meter globe 2 Simultaneously press the UP and DOWN arrow buttons while applying power to the meter until the JEMStar logo is displayed Default Time Displays When a Cold Start is performed certain time and date displays in the meter for example Date of Peak Demand contain a default time date until the meter records an actual value This non value displays as midnight January 1 1970 In other words a time register will show 00 00 00 and a date register will show 01 01 70 If you see a display with this particular time and date please note that t
109. d The demand for the most recently ended demand interval Peak Demand a k a Maximum Demand The highest demand reading in a Billing Period Phase The timing relationship between two signals of the same frequency expressed as an angle E g the delay between voltage and current waveforms in an AC circuit or between voltage waveforms in different circuits One of usually three circuits in a polyphase power distribution system Each phase may be treated as an individual power source that is synchronized to the other phases in the system Polyphase The sum average or combination as appropriate of measurements from all phases input to a meter Power Factor PF The ratio of the real power watts to the apparent power volt amperes PF is equal to the cosine of the phase angle between voltage and current Present TOU Period The one Time Of Use period that the meter determines to be active at the present time This is determined by the present date and time of the meter and the TOU schedule Pulse A state change in either direction of a binary metering signal Register Used to refer to specific quantities to be displayed or retrieved Register Assembly The term used to refer to the hardware implementation of the display or control of the I O functions of the meter G 4 Glossary RMS Root Mean Square the equivalent DC value of periodic AC signal 5 amps RMS delivers the same amount of power to given load as 5
110. d PF 0 1 00 0 32767 Phase A Rec 87 Instantaneous Uncompensated PF 0 1 00 0 32767 Phase B Del 88 Instantaneous Uncompensated PF 0 1 00 0 32767 Phase B Rec 89 Instantaneous Uncompensated PF 0 1 00 0 32767 Phase C Del 90 Instantaneous Uncompensated PF 0 1 00 0 32767 Phase C Rec 91 Instantaneous Uncompensated PF 0 1 00 0 32767 Poly Del 92 Instantaneous Uncompensated PF 01 00 0 32767 Poly Rec Instantaneous Uncompensated 93 Watts Phase A Bidirectional 10600 to 10600 W 32768 to 32767 Instantaneous Uncompensated 94 Watts Phase Bidirectional 10600 to 10600 W 32768 to 32767 Instantaneous Uncompensated Watts Phase Bidirectional 10600 to 10600 W 32768 to 32767 Instantaneous Uncompensated Watts Polyphase Bidirectional 31800 to 31800 W 32768 to 32767 Instantaneous Uncompensated VARs Phase A Bidirectional 10600 to 10600 VAR 32768 to 32767 Instantaneous Uncompensated VARs Phase B Bidirectional 10600 to 10600 VAR 32768 to 32767 Instantaneous Uncompensated VARs Phase C Bidirectional 10600 to 10600 VAR 32768 to 32767 Instantaneous Uncompensated VARs Polyphase Bidirectional 31800 to 31800 VAR 32768 to 32767 D 15 JEMStar User Manual Events The JEMStar DNP implementation includes frozen counter event objects These are implemented as Object 23 Var 5 32 Bit frozen counter with time These provide time stamped snapshot of the corresponding count
111. d result codes ATX1 5 No Blind Dial ATX2 6 Busy Detection ATX3 Appendix A Default Configuration S28 Pulse Dialing Bit Mapped Options S28 stores the modem s pulse dialing configuration Bit 0 2 5 7 Not Used Bit 3 4 0 Make Break ratio 3990 6190 10 pulses per second AT amp PO 1 Make Break ratio 3396 67906 10 pulses per second AT amp P1 2 Make Break ratio 3996 6190 20 pulses per second AT amp P2 3 Make Break ratio 3396 6796 20 pulses per second AT amp P3 S29 Hook Flash Timer S29 determines the length for time the modem closes its off hook relay on receipt of the dial modifier to simulate a switch hook 7 Full result codes ATX4 flash Bit 7 Not Used Range 0 to 255 Units 10 milliseconds S23 General Bit Mapped Options S23 reflects the Default 70 state of several AT commands S30 Disconnect on Inactivity Timer S30 sets the Bit 0 0 Remote DLB Disabled AT amp T5 period and the modem is idle before it disconnects Remote DLB Allowed AT amp T4 Bit 1 3 0 Host Interface at 300 bps 1 Host Interface at 600 bps 2 Host Interface at 1200 bps 3 Host Interface at 2400 bps 4 Host Interface at 4800 bps 5 z Host Interface at 9600 bps 6 Host Interface at 19200 bps 7 Host I F at 38400 bps or higher Bit 4 5 0 Even parity in use 2 Not used 2 Odd Parity in use 3 z No Parity in use Bit 6 7 0 No Guard Tone AT amp GO No Guard Tone AT amp G1 2 1800 Hz guard t
112. d x1000 Watts Phase A Bidirectional 94 Instantaneous Uncompensated x1000 Watts Phase B Bidirectional 5 Instantaneous Uncompensated x1000 Watts Phase C Bidirectional 6 7 8 9 9 9 9 Instantaneous Uncompensated x1000 9 Instantaneous Uncompensated x1000 9 Instantaneous Uncompensated x1000 9 Instantaneous Uncompensated x1000 100 Instantaneous Uncompensated x1000 VARs Polyphase Bidirectional D 12 Appendix D DNP Serial Communications 16 Bit Inputs These inputs are represented in SECONDARY units and scaled so that the meter s full scale value is represented by 32767 The list is the same as that configured for the 32 bit Analog Input points but the user entered scale values are not used Example At 60 Hz the raw value represented for frequency may be 19640 Dividing by 32767 and then multiplying by the full scale engineering units value see the following table gives the following reading 19640 32767 x 100 0 59 94 Hz obtain primary units multiply by the appropriate PT and or CT ratios JEMStar s default configuration is to have these Binary Input Points assigned Dosenpli n TUS dc Scaled Range 3 Instantaneous Watts Phase B Rec 0 10600 W 0 32767 6 Instantaneous Watts Poly Del 0 31800 W 0 32767 7 Instantaneous Watts Poly Rec 0 31800 W 0 32767 14 Instantaneous VARs Poly Del 0 31800 VAR 0 32767 15 Instantaneous VARs Poly Rec 0 3
113. e Appendix D Element A voltage and current input pair to a meter or transducer typically from the same phase A half element takes advantage of mathematical relationships present in a three phase power system to eliminate the need for one voltage measurement Full Scale A reference condition corresponding to the highest rated value of a given measurement For watts this condition occurs at the user s input voltage class current rating and unity power factor For VARs full scale is at the user s input voltage class current and zero power factor Health Status Read A Health and Status Read is concerned with evaluating the correct operation of the meter and its installation not its billing data Health and Status display items may be programmed into either Normal or Alternate display lists at the user s discretion Holiday For TOU purposes a holiday is a date contained in the holiday schedule Holiday Schedule A holiday schedule is an array of dates in seconds time format at midnight within the TOU schedule that enables the meter to identify holidays Instantaneous Quantities Instantaneous quantities are short term average or RMS measurements of electrical characteristics in a circuit Instantaneous quantities are suitable for developing Instantaneous Register Thermal Demand or analog outputs Integrated Quantities G 2 Glossary Integrated quantities are power measurement quantities that are integrated over
114. e firmware version comm setting and health status Four season schedules Nine day types including each day of the week and two holiday types Twenty year calendar with up to 200 holidays specified Each measurement register can be associated with one of nine time of use rates A H and Total Up to eight rate changes can be specified for each day type Wh Del Wh Rec VARh Del VARh Rec VAh Del VAh Rec VARh per quadrant Ah Qh Del Qh Rec Avg W Del Avg W Rec Avg VAR Del Avg VAR Rec Avg VAR per quadrant Volts Amps Power Factor Hertz Volts THD Amps THD Pulses Status 2 V A h V h Q Qhr Totalization channels 1 12 Up to 12 channels of storage four standard Programmable interval length 1 2 3 4 5 6 10 12 15 30 and 60 minutes independent of Demand Interval May record optional Totalization channels as well See Totalization registers above Chapter 1 General Information Communication Ports Optical Port Description Type 2 Front panel mounted Mating Sensor can be attached with the meter cover installed magnetic type or cover removed hanging type Complies with ANSI C12 13 1991 Section 3 6 Uses JEM Binary Protocol User configurable for 300 to 19200 baud RS 232 Description Supports Tx Rx Gnd and RTS signals Half duplex operation Configurable for 300 to 38400 baud Mutually exclusive with RS 485 option Configurable for all JEMStar protoc
115. e along with the error control and data compression protocols negotiated n 0 Send CONNECT at DTE Rate n 1 Report line speed DTE speed and Link protocol n 2 CONNECT Reports Link speed Xn Result Code Set ATXn selects which set of result codes the modem may send n 0 Result codes 0 to 4 n 1 Result codes 0 to 5 and 10 n 2 Result codes 0 to 6 and 10 n 3 Result codes 0 to 5 7 and 10 n 4 Full Result codes Yn Long Space Disconnect ATYn determines if the modem will automatically disconnect if a continuous space is received for 1 6 seconds n 0 Long Space Disconnect Disabled n 1 Disconnect on long space 7 JEMStar User Manual Zn Reset ATZn executes a soft reset to the modem and resets the modem configuration n 0 Reset to user profile 0 n 1 reset to user profile 1 amp Cn DCD Operation AT amp Cn determines the operation of the DCD output n 0 DCD is forced active n 1 DCD indicates a valid carrier amp Dn DTR AT amp Dn determines how the modem will respond to changes to DTR n 0 DTR is ignored by the modem n 1 Enter command mode if DTR revoked n 2 Disconnect if DTR revoked n 3 Soft reset when DTR revoked amp Fn Return to Factory Defaults AT amp Fn returns the modem configuration to one of two factory configurations n 0 Restore configuration 0 n 1 Restore configuration I amp Gn Guard Tone AT amp Gn controls the guard tone produced by the modem n 0 Guard Tone D
116. e battery out of its holder 6 Install new exact replacement battery available from the factory Specify part number 15847 001 92 Chapter 5 Maintenance Security Keys JEMStar includes two security keys to protect the meter from tampering and unwanted access to certain meter functions There are two removable jumpers keys located inside the meter on the Metrology board One security key is used to disable all configuration changes from the front panel keypad menus plus the following serial port commands when accessing the meter via JEMWare Numbers in parentheses are the hex equivalent of the specific command in JEM binary see Command Protocol manual 1083 603 Enter Test Mode 4D 01 Preset Normal Registers 57 01 Preset Alternate Registers 57 02 Configure Timekeeping 43 07 Configure Interval Timing 43 08 demand and Load Profile intervals Configure Demand Parameters 43 09 subinterval length outage deferral Configure Load Profile 43 0A Configure Pulse I O 43 OB Configure Analog Outputs 43 0 Configure Primary Scaling 43 0D Configure Normal display List 43 Configure Alternate Display List 43 OF Configure Test Display List 43 10 Configure TOU Schedules 43 12 Configure TOU Seasons 43 13 Configure TOU Holidays 43 14 Configure Loss Compensation 43 15 Configure Reactive Selection 43 16 Configure Thermal Time Characteristic 43 18 Configure Threshold Alarms 43 19 Conf
117. e configured for either K5 Y5 or Ethernet RX Refer to the Ethernet Switchboard Interface Board section on page 60 for jumper settings Relay 5 provides a single Form A N O contact in the Switchboard style R Base enclosure 43 JEMStar User Manual Configuring Contact Outputs on a 5 KYZ board The configuration of the 5 K YZ Board is the same as setting up a DI DO Board However when you set up contact output in JEMWare for Normally Open you are setting the K Y section of the output for NO and the K Z section for NC You may also set the output for reverse operation That is if you configure JEM Ware for Normally Closed you are setting the K Y section for NC and the K Z section for NO OY Contact state shown with JEMWare configured for Mus Z Normally Open 44 Chapter 2 Installation Analog Outputs JEMStar can include an optional feature that consists of three analog output channels All three channels are configured at the factory for either 0 1 mA or 4 20 mA output Each of these channels may be configured for any instantaneous quantity Loss Compensation can be utilized with any Analog Output that is based on Watts VARs VA PF or Q 0 1 mA Outputs A JEMStar meter equipped with 0 1 mA analog outputs has the following characteristics e Each output channel will source and sink up to 2 4 mA e Each output channel will have a compliance voltage of at least V10 volts e Analog output
118. e eene sena se tetas tenes etta sete so 1 MODBUS rod OO a a E E aa enne nennen eene rente 1 COMMUNIC ALIONS reee A 2 Se alPort Connections noe ee ere det 2 Data Transfers using MODBUS RTU or 2 Calculation ASCII modeen EEE E E EE 3 CRC Calculation RTU 3 RTU Message Framing orinni RR RR EUER MOD VER ER VERE EUR MUERTE RR EPA KERN 4 ASCH Message Prams ue 4 Communication 4 Exception Responses RURSUS DE DIGG ee Cos 5 iie outs eet E 5 R er Pee 6 MODBUS Register rrr 6 Appendix ANSI Tables Communication 4 eere eee eene eee e eee en esee to setas 1 Introduction GEGEN ute bue o Se SES SERA 1 Table ka 1 Communication Metliods UEBER RP PR 2 ANSI 2 Optical Port Protocol C12 T8 ee AREA HAN RR RENE 2 ANSI Telephone Modem Protocol 12 21 2 ANSI Network Protocol 12 22 2 ANSI Tables Implementation in JEMStar nnne 3 Optical Nu 3 Modem nentetelnieuiaidieduieueuteu 3 Direct connect RS 232 or RS 485 eene 3 Supported Data Fable 4 GSA Fosses 1 iv GENERAL INFORMATION JEMSTAR METER OVERVIEW The J
119. e will be displayed briefly before the actual register value Performing a Billing Period Reset will clear the System Error reports Test Mode is used for testing the accuracy of the meter Refer to Chapter 4 Test amp Calibration for complete explanation of Test Mode Note When in Test Mode only the Test Mode registers update The standard metering registers and load profile data do not accumulate The normal metering functions are suspended until Test Mode is exited To manually scroll through Normal Mode registers The display registers defined in the Normal Mode can be manually scrolled by momentarily pressing the READ button to step to the next register To enter Alternate Mode displays Alternate Mode is entered by holding down the READ button for two or more seconds The Alternate Mode registers can be scrolled through manually by momentarily pressing the READ button To return the meter to Normal Mode from Alternate Mode press and hold the READ button for two or more seconds and release Test Mode The JEMStar meter has special mode of operation called Test Mode that allows the operator to apply test voltages and currents to the meter without having them affect Normal or Alternate registers or Load Profile Test Mode also allows adjustment of meter registration During Test Mode the following conditions exist 1 Normal and Alternate registers stop accumulating Peak Coincident and Time Date of Peak registers may con
120. ect 90 of a step change in input Similar to the time characteristic of mechanical thermal demand meters Threshold Alarms JEMStar can be configured to monitor any Register and if the proper option module is installed generate a contact closure output based on the register s value JEMStar compares the selected Register against the setpoints once per second G 5 JEMStar User Manual The user can configure these characteristics e The register to compare against the thresholds e The upper threshold set point e The lower threshold reset point Time Time indicates hours minutes and seconds TLC Transformer Loss Compensation the ability of an instrument to measure or calculate the power lost in an imperfect transformer and to use that figure to modify its power or energy readings Total Registers Those JEMStar registers that are not TOU registers are called total registers The total registers always are active TOU Period selected duration of time during which the consumption demand and other information are assigned to a set of Time Of Use registers TOU Rate Indicator Output A display segment that indicates the present TOU rate in effect TOU Register A TOU register is a register of the JEMStar meter that for a designated TOU period accumulates and may display amounts of electrical energy demand or other quantities measured or calculated TOU Schedule The TOU schedule is a static externally configured datab
121. el Hi REG DB 40220 1000 Sys VAh Del Lo REG DC 40221 1000 Sys VAh Rec Hi REG DD 40222 1000 Sys VAh Rec Lo REG DE 40223 1000 Sys Qh Del Hi REG DF 40224 1000 Sys Qh Del Lo REG 40225 1000 Sys Qh Rec Hi REG 1 40226 1000 Sys Qh Rec Lo REG E2 40227 U 1000 Sys AMPh Hi REG E3 40228 U 1000 Sys AMPh Lo REG E4 40229 U 1000 Sys V2H Hi REG E5 40230 U 1000 Sys V2H Lo REG E6 40231 U 1000 Sys A2H Hi REG E7 40232 U 1000 Sys A2H Lo E 12 Read Input Registers function 04 Point List Appendix E MODBUS Communications MODBUS PLC Register Contents Engineering Scaled Address Address Units Range Range REG 00 30001 Instantaneous Watts Phase A Del 0 10600 W 0 32767 REG 01 30002 Instantaneous Watts Phase A Rec 0 10600 W 0 32767 REG 02 30003 Instantaneous Watts Phase B Del 0 10600 W 0 32767 REG 03 30004 Instantaneous Watts Phase B Rec 0 10600 W 0 32767 REG 04 30005 Instantaneous Watts Phase C Del 0 10600 W 0 32767 REG 05 30006 Instantaneous Watts Phase C Rec 0 10600 W 0 32767 REG 06 30007 Instantaneous Watts Poly Del 0 31800 W 0 32767 REG 07 30008 Instantaneous Watts Poly Rec 0 31800 W 0 32767 REG 08 30009 Instantaneous VARs Phase A Del 0 10600 VAR 0 32767 REG 09 30010 Instantaneous VARs Phase A Rec 0 10600 VAR 0 32
122. element phase A B C or total that may be selected for one of these measurements in a display register may be output as a Test Pulse The pulse weight Kt for each pulse is fixed The Test Pulse output is always assigned to match the currently displayed Test register if the register is displaying one of the measurements listed above In other words If the register displays The Test Pulse output is Watts or Watthours per phase or total any Watthours per phase or total any direction direction 1 8 Wh pulse VAR or VARhours per phase or total any VARhours per phase or total any direction direction 1 8 VARh pulse VA or VAhours per phase or total any V Ahours per phase or total any direction direction 1 8 VAh pulse Q or Qhours per phase or total any Qhours per phase or total any direction direction 1 8 pulse Amps or Amphours per phase or total Amphours per phase or total 0 02 Ah pulse Any other register type No change from the previous Test Pulse assignment 85 JEMStar User Manual The Optical Test Pulse may be picked up with any Optical Port receiver although we recommend the Scientific Columbus Model 5282 Optical Port Adapter The 5282 allows the Optical Port to be used for serial communication with computer as well as directing the Test Pulse to an external counter for accuracy testing If the Optical Port is being used for serial communication during
123. elephone Modem protocol For connection details refer to the section titled Communication Ports in Chapter 2 of this manual Direct connect RS 232 or RS 485 Port If a JEMStar is configured for ANSI Tables on an RS 232 or RS 485 port it will automatically use the C12 21 Telephone Modem protocol For connection details refer to the section titled Communication Ports in Chapter 2 of this manual F 3 JEMStar User Manual Supported Data Tables Only the following Tables are supported in the JEMStar meter Rows shaded in gray are either undefined by the ANSI C12 19 Standard or not supported by JEMStar Decade 0 Decade 0 Device Contiguration Identification and Procedure Tables Table Title Description Read mal General config General info on end device configuration data formats Manufacturer ID Manufacturer HW and FW revision numbers ler Device Nameplate Nameplate data form class voltage freq etc ED MODE Present operating mode present error warning status Status Pending Status Indicates pending status of tables in the meter Device Device serial number Identification Utility Utility and installation identification Information Procedure Initiate Activate device procedures BPR etc Procedure Results of previous Procedure Initiate Table 07 write Response o Supported Procedures in Table 07 Procedure Initiate Procedure Procedure Name Description
124. er and lower Reverse power flow on any phase Phase voltage sequence out of order Internal meter error Each test can be disabled or enabled during meter configuration Any detected anomaly can be configured to report any combination of the following Notes Log to an event buffer with the date and time when the condition was detected If later on the condition is detected to have cleared another event shall be logged noting the date and time Set an indication in the Health Status summary register This indication is removed when the detected condition has gone away Latch an indication in the Health Status summary register This indication will remain even when the detected condition has gone away Activate an annunciator on the front panel This indication is removed when the detected condition has gone away Latch an annunciator on the front panel This indication will remain even when the detected condition has gone away Override the normal display with a status report that must be manually acknowledged before normal display operation can continue This report always latches Close a contact output on the JEMStar The contact output will remain closed until the detected condition has gone away Anomalies are reported only when first detected persistent conditions are not re reported unless they have cleared first A Billing Period Reset clears any latched anomaly reports that are no longer valid 97 JEMStar User Manual
125. er factor is not considered in the calculation JEMStar calculates Apparent Power Watts VARs ARO At Rated Output Average Power Factor The ratio of kilowatt hour pulses to computed equivalent Ah pulses for the billing period Billing Period The period of time commonly a month between readings of a meter when those readings are used for billing a power customer Also the period of time between two consecutive demand resets Billing Period Reset BPR A task commonly associated with the Billing Read is the Billing Period Reset The Reset causes a snapshot of register readings to be copied to storage as well as clearing Peak Demand readings and updating Cumulative and Continuous Cumulative readings You must break a seal to perform a Billing Period Reset on the front panel The Reset is recorded in the Billing Period Reset event buffer Billing Read A Billing Read is the task of reading billing information from the meter front panel If the billing information is required to be available to anyone it can be programmed into the Normal display list See Casual Read Burden Load imposed by a device on an input circuit expressed in ohms or VA Casual Read A casual read is the ability to see measurements on a sealed functioning meter without breaking a seal or otherwise violating the meter s security The type and amount of information available during a casual read can be selected by the meter setup programmer
126. er or Channel 1 Time Display Register 2 Status Display Register 3 ID Display Register 4 Unused Register 5 Totalization Display Register or Channel aaa is the Display Register or Channel Algorithm 0 Demand 1 Consumption 2 Average PF 3 Peak Demand 4 Instantaneous 5 Thermal 6 Peak Thermal 7 Demand Prediction E 26 Appendix E MODBUS Communications 11 is the Demand Algorithm and is used only for Demand Peak Demand or Peak Thermal Registers or Channels For Demand Registers or Channels 0 Unused 1 Past Interval Demand 2 Present Interval Demand For Peak Demand Registers 0 Peak Demand 1 Time of Peak Demand 2 Coincident Demand 3 Date of Peak Demand For Peak Thermal Registers 0 Peak Thermal 1 Time of Peak Thermal 2 Unused 3 Date of Peak Thermal isthe Display Update 0 Working value updates at any time 1 Freeze value updates on communications Freeze 2 Season value updates on TOU Season Change 3 Billing Period Reset value updates on BPR 4 Cumulative Peak Demand value accumulates on BPR 5 Continuous Cumulative Peak Demand value accumulates on BPR and Demand Interval nnnnn is Selection Number that defines which Status ID or Time value or Totalization channel this Display Register contains For Time Registers 0 Present Time present value of the meter clock 1 Last BPR Time time of the last Billing Period Reset 2 Last Freeze Time
127. ers at the time of freeze The JEMStar has storage for 5 frozen event objects when all 64 points are configured possibly more if less points are used An event is generated at each register freeze Each event includes all corresponding registers at the time the freeze occurred If event data is not desired the generation of events can be disabled using JEM Ware In JEMStar all event data is permanently assigned to Class 1 Time and Date Time and Date object 50 is supported both for read and write Using JEMWare you can configure the Write Time Interval which is the interval after which the JEMStar will set the Need Time bit in the Internal Indications Configuration JEM Ware software must be used to set up the configurable parameters that relate to DNP 3 0 in the JEMStar as well as configurable point assignments for Object 20 Please refer to the section in this manual titled Protocols for detailed procedures D 16 APPENDIX E MODBUS COMMUNICATIONS MODBUS INTRODUCTION The MODBUS protocol defines a message structure that electronic communications equipment will recognize and use regardless of the type of networks over which they communicate It describes the procedure a host piece of equipment called the MASTER uses to request access to another device called the SLAVE how it will respond to requests from other devices and how errors will be detected and reported A common format is defined for the layout and content
128. ert to any predetermined Time Of Use rate 79 JEMStar User Manual Status An input pulse is recorded as a Status event in Load Profile data Totalization An input pulse adds a configurable amount of energy to a Totalization channel s reading To view the input arrangement go to menu I O Inputs then select a Channel number that you want to view The screen will display how each of the two channels has been configured Analogs Three current output signals can be supplied as an option for external indication or to interface to other data systems The output range is factory supplied as either 0 1mA or 4 20mA Each analog output is configurable to one of the basic measured quantities Watt VAR or Q VA A V PF Frequency or THD The analog output connection is a pigtail cable located at the base of the meter on socket and A base meters The analog output signals for switchboard case meters are available through the screw terminal block at the rear of the case To view how the analog outputs are configured go to display menu I O Analogs then select a Channel number that you want to view The screen will display how each of the analog channels has been configured To edit the configuration you must use JEMWare software Configure The Configure menus are used to put the meter in Test Mode verify communications check the meter installation using phasor diagrams and perform a display pixel check These features are described
129. et Enter Test Site Diagnostic or Calibrate Mode Preset Registers Configure meter identity ID strings CT PT ratios etc and Comm parameters Configure TOU schedule Configure everything else not itemized Read any configuration item Optical Port JEMStar uses front panel mounted Type 2 Optical Port The physical configuration of the port is such that magnetic mating probe may be attached with the cover on the meter With the cover removed wire retaining clip is required The JEMStar Optical Port incorporates JEM Binary Protocol and may be configured for 300 1200 2400 9600 or 19200 baud communications 47 JEMStar User Manual RS 232 The JEMStar can be optionally equipped with an RS 232 serial port It is configurable for any valid communication address supported by the meter and can be configured for 300 1200 2400 9600 19 2K or 38 4K bps communications The port is operated in half duplex mode using four signal wires Common Transmit Data Receive Data and Request To Send The RS 232 option is mutually exclusive with the RS 485 option that is only one or the other can be installed unless the Dual Comm feature is installed For the S Base and A Base meter styles JEMStar serial output connections are provided via the multi conductor cable The wire colors are as follows RS 232 Output Connections Color Signal Wht Grn Blu Tx Wht Red Blu Rx Wht Pur Gnd Wht Red Org RTS
130. g 5 Lo REG 7A 40123 S 1000 Alternate Reg 6 Hi REG 7B 40124 S 1000 Alternate Reg 6 Lo REG 7C 40125 S 1000 Alternate Reg 7 Hi REG 7D 40126 S 1000 Alternate Reg 7 Lo REG 7E 40127 S 1000 Alternate Reg 8 Hi REG 7F 40128 S 1000 Alternate Reg 8 Lo REG 80 40129 S 1000 Alternate Reg 9 Hi REG 81 40130 S 1000 Alternate Reg 9 Lo REG 82 40131 S 1000 Alternate Reg 10 Hi REG 83 40132 S 1000 Alternate Reg 10 Lo REG 84 40133 S 1000 Alternate Reg 11 Hi REG 85 40134 S 1000 Alternate Reg 11 Lo REG 86 40135 S 1000 Alternate Reg 12 Hi REG 87 40136 S 1000 Alternate Reg 12 Lo REG 88 40137 S 1000 Alternate Reg 13 Hi REG 89 40138 S 1000 Alternate Reg 13 Lo REG 8A 40139 S 1000 Alternate Reg 14 Hi E 10 Appendix E MODBUS Communications MODBUS PLC Signed Scale Factor Register Contents Address Address Unsigned REG 8B 40140 S 1000 Alternate Reg 14 Lo REG 8C 40141 S 1000 Alternate Reg 15 Hi REG 8D 40142 S 1000 Alternate Reg 15 Lo REG 8E 40143 S 1000 Alternate Reg 16 Hi REG 8F 40144 S 1000 Alternate Reg 16 Lo REG 90 40145 S 1000 Alternate Reg 17 Hi REG 91 40146 S 1000 Alternate Reg 17 Lo REG 92 40147 S 1000 Alternate Reg 18 Hi REG 93 40148 S 1000 Alternate Reg 18 Lo REG 94 40149 S 1000 Alternate Reg 19 Hi REG 95 40150 S 1000 Alternate Reg 19 Lo REG 96 40151 S 1000 Alternate Reg 20 Hi REG 97 40152 S 1000 Alternate Reg 20 Lo
131. ges to accommodate read only applications hardware key is also provided in the meter which if removed prevents any configuration or calibration changes JEMStar is software configurable using JEMWare This software allows the meter to be scaled for direct primary readings demand information register information load profile configuration and time of use rates Refer to the JEMWare instruction manual 1083 602 for details on all the different parameters that can be programmed into the JEMStar JEMStar User Manual Event Recording JEMStar maintains records of certain events independent of the Load Profile features JEMRead is able to retrieve some of this information independently However if you need access to the data for troubleshooting or historical purposes it is available in the meter Contact AMETEK for information about using the Protocol Command Set Manual 1083 603 All recorded events include the following information e A description of the type of event e The date and time at which the event occurred e If applicable the time after the event The following events are recorded e Power Outage any recognizable failure of the auxiliary power is recorded with the time when power went down the time at which it was restored and an indication of which voltage inputs were live as displayed on the potential indicators when power went down The five most recent power outages are saved in memory e Time Set and Dayligh
132. gistration will occur on any function that depends on current with the current circuit open Analog Outputs Option Quantity Type 0 I mA Range 4 20 mA Range Accuracy 0 1 mA Range 4 20 mA Range Usage Chapter 1 General Information Three independent outputs Factory set for either 0 I mA or 4 20 mA Source and sink up to 2 4 mA Compliance 10V max External 24V loop supply required 0 1 of full scale output derated by an additional 75 ppm of Rated Output per degree C difference from nominal temperature of 23 C 0 1 of full scale output derated by an additional 50 ppm of span per degree C difference from nominal temperature of 23 User configurable for any instantaneous quantity Pulse Contact Alarm Outputs Option Pulse Outputs based on Analog amp Alarm Outputs based on Quantity Type Max open circuit voltage Max closed circuit Saturation voltage drop Max rated switching current TTL compatible output Usage Watthours VARhours V Ahours Qhours Amphours V hours A hours Watts VARs Amps Amps Volts Volts THD and Frequency Four outputs using DI DO board Five outputs using 5 K YZ board DI DO Two wire dry Form A solid state switching FET requires external wetting voltage configurable for N O or N C operation via JEMWare software 5 K YZ Three wire dry Form C solid state switching FET requires external wetting volt
133. h the Total rate leave this blank Annunciators The display indicates the following items as symbols they are visible regardless of what is being displayed on the major or minor numeric displays Potential Indicators Each of the three possible voltage inputs and on the JEMStar has corresponding Potential Indicator shown in the upper left corner of the display The Potential Indicator is 65 JEMStar User Manual visible whenever the corresponding voltage input exceeds 20 volts The only time that a Potential Indicator turns off is e If the corresponding voltage input is below 20 5 0 volts e Ifthe meter Auxiliary Power is off e Ifa blank display is shown Load Rate Indicator s The upper left section of the display includes a sequentially moving arrow indication of the direction and rate of energy flow for Watts and Reactive VAR or Q Left to right arrows indicates Watts delivered right to left indicates Watts received In a similar manner bottom to top arrows indicate Reactive Lagging top to bottom indicates Reactive Leading End of Interval Indicator The display provides a momentary indication of the end of a Demand Interval or Subinterval Upon occurrence a flag appears in the lower left for at least one second Error Indicator When the meter detects an error a flag will appear in the lower right corner of the display Register Threshold 1 4 Appears in the bottom row when one of the user configured Threshold
134. half duplex communications 4000 Ft Max METER 1 METER 31 METER 32 RS 485 MASTER C 9C 39C 3cC 3Ftrr ES F 1200 TERMINATION RESISTOR RS 485 CONNECTION DIAGRAM The signals labeled TX RX and TX RX are a half duplex pair that carry Received Data to the meter and Transmitted Data to the master There are no restrictions on where the meters are connected to the wires and it is not necessary to have the meters connected at the ends you may have other devices connected in the same string However the wire pair must be terminated at each end with a 120 ohm resistor If the JEMStar meters are the end devices this is accomplished simply by installing a jumper on the meter s Communication board If you have another type of device located at the end refer to the instruction manual for that device you may need to install the resistor externally 53 JEMStar User Manual ot a Ru J1 20 Er a F F ce c U22 E e 12 Es td 2 cem eo R R70 od L3 2 al mE 02 20 2311211 RS T 3 u2 8 UE JEMSTAR CommRepeater e Termination Jumper 15 on Comm 2 Ol board shown in term
135. hate TOU Rate Indicator gt ua Volks Phase i Minor Display Function Indicator Major Display Register contents Remote Error Indicator Communication End of Interval Thresholds 4 indicators JEMStar LCD Display Layout Backlight Option As an option the JEMStar display can be ordered with a backlighting feature See the Model Number Description near the beginning of this manual to determine if your meter is equipped with this feature Major Display The large 6 or 8 digit numeric display on the JEMStar is used for displaying measurement registers and the measurement quantity Measurement registers shown on this display are configurable for up to 3 decimal places and for 3 or more significant digits with lead zero blanking Minor Display In the upper center the smaller 3 digit numeric display on the JEMStar is used for identification codes register sequence numbers or other indications as configured by the user For registers in user defined display lists the user can assign up to 3 digit identifier to each displayed item Function Indicator This section of the display indicates information relative to the highlighted menu item The Function Indicator displays simple text and may be customized for each user assigned register in JEMWare TOU Rate Indicator The upper right section of the display can be programmed to indicate the Time of Use rate A H associated with any displayed measurement Registers associated wit
136. he message If a greater interval occurs the receiving device assumes that an error has occurred Typical JEMStar ASCII Queries Query Field Read Holding Regs Force Single Coil Start character Fed ci Device Address 0 5 0 5 Function 0 3 OF F Register Address 00 0 4 0 0 01 Regs Preset Value 00 0 6 FFE 0 0 Error Check LRC X X X X End characters CR LF CR LF Communication Errors Communication errors consisting of an illegal character in ASCII mode a Parity LRC or CRC error will result in the message causing the error to be ignored by the meter The MASTER Device will timeout and retransmit the message E 4 Appendix E MODBUS Communications Exception Responses The JEMStar MODBUS implementation can produce 1 of 3 possible exceptions e Illegal Function Exception Code 01 e Illegal Data Address Exception Code 02 e Illegal Data Value Exception Code 03 An Illegal Function is self explanatory If the meter receives a MODBUS query that contains a function that it does not support anything other than 01 02 03 04 05 15 or 16 an Illegal Function Exception 01 will be returned The Data Address is the Holding Register or Input Register address For example an Illegal Data Address for a Function 03 command would be either a register value greater that OxE7 or a register value that begins at the second word Lo Order Word of a 32 bit
137. his is simply an indication that the meter has not received a valid setting yet 66 Chapter 4 Test amp Calibration NAVIGATING THE DISPLAY MENUS In standard operation the JEMStar display is used to show the measured electrical quantities and various other monitored parameters However the display can easily be switched into the Setup mode which uses a simple menu structure for access to the meter s multiple features Some menu items are read only such as health status indicators while others can be edited time date communications etc Through a series of front panel button presses you can directly configure many of the simpler meter functions Note the front panel keypad may be locked out depending on your company policy See Section 5 Maintenance for information on Security Keys The Display Menu is divided into logical groups of features and categories The following chart shows all menu functions 67 JEMStar User Manual Menu Column 1 Settings Preset Configure Menu Column 2 Identity Demand Date Time Health Status Optical Serial 1 Serial 2 Ethernet Alternate Outputs Analogs Test Mode Site Check Menu Column 3 Display Menu Layout Description of Operation lt Voltage Transformer Ratio gt I Editable Feature Service Program ID Firmware Rev Interval Current Transformer Ratio gt I ID name from JEMWare Revision Number gt
138. his manual for further information Baud Rate Each serial port may be configured for 300 1200 2400 9600 19200 or 38400 bps communications Both channels are able to run the following protocols simultaneously L JEM10 Binary L Modbus L ANSI tables Note DNP can only be run on one of the two channels at a time 55 JEMStar User Manual Jumper Settings for Dual Comm Board The Dual Communications board is different from the standard serial modem communications board Use the following information when setting up the two ports J8 Install only one jumper in one of the four locations This is used to define the port assignments as RS232 or RS485 For example the top jumper position defines both ports as RS232 Use jumper part number 4195 263 P2 P3 P4 Not used these are for factory test purposes P10 P11 These are 2x7 jumper packages part number 4195 643 Install jumper on the left two columns of pins for RS485 communications install on the right two columns for RS232 P10 is used for channel 1 P11 is used for channel 2 J1 J7 Use these jumpers 4195 263 to add the RS485 termination resistors to the circuit only when required Refer to the CommRepeater section for more information about when termination resistors are required Connecting the upper two pins will insert the termination resistor in the circuit the lower two pins will take it out J1 is for channel 1 J7 is for channel 2 Note For RS 232 operation the
139. his session is logged as a Register Preset event To preset the meter registers from the front panel 1 Press any arrow key to enter the menu screen 78 Chapter 4 Test amp Calibration 2 Using the arrow keys go to menu selection Preset Normal or Alt The registers available for presetting appear in the far right column on the meter display 3 Use the arrows to select a register from the right hand column to preset and then press the SET button The first blinking digit in the setup field is the selected digit 4 To increment the highlighted digit press button to decrement press the button You may press the READ button at any time to cancel the operation 5 To select the next digit press the right arrow button 6 Continue selecting and incrementing decrementing digits until the desired quantity is shown on the display TA When the desired register value is reached save that register value by pressing the SET button The meter automatically returns to the menu Repeat Steps 3 through 7 to preset any other register quantities 9 When all the necessary registers are preset press the left arrow button repeatedly to exit out of the menu screen or press READ oo Note Pressing the READ button while editing a register will cancel the SET operation and restores the register to its original value s To preset the meter registers using JEMWare software Please refer to the JEMWare Instruction Manual 108
140. ifference in the potential is overcome All meter shop work must be performed at static protected work stations following properly prescribed static control practices Unless controlled electrostatic discharge can destroy or weaken solid state electronic components and assemblies Failure Mode Failure of solid state component due to static discharge is characterized by partial or complete destruction of semiconductor junction or microscopic resistive or capacitive element within circuit device Failure is most common in CMOS very low energy devices Destruction of a circuit is immediately detectable and is remedied by normal troubleshooting and repair methods However the common condition of partial damage induced by low level static discharge is not immediately detectable Thus the damaged component may continue to operate normally but in weakened state Repeated exposure of the same component to similar low levels of static discharge may produce cumulative damage ultimately leading to failure Static damage can be avoided by practical methods accessible to anyone handling solid state components or assemblies Completely assembled products are only minimally vulnerable to static damage and then only under the most severe of static prone environments Consequently completely assembled products can usually be handled in normal work environments indoors and outdoors with little risk of static damage If product is disa
141. igital Output Control must be enabled in the meter with JEMWare If not enabled Modbus exception 01 illegal function will be returned if this is attempted MODBUS REGISTER MAPS JEMStar contains 4 Discrete Output registers 39 Discrete Input Registers 232 Holding registers and 61 Input registers All Holding Registers contain 32 bit data values in consecutive pairs Thus the individual Holding Registers 40001 through 40232 will contain either the High Order Word or the Low Order Word of a 32 bit data type The Input Registers of the meter are stored as signed and unsigned 16 bit integers These integers represent a value in some Engineering Unit with a Scale Factor of some number of decimal places The JEMStar register values are visible via MODBUS as MODBUS Holding Registers The 32 bit register values are mapped as two consecutive MODBUS registers with the High Order 16 bit segment first Any or all of these MODBUS Registers can be accessed via the MODBUS Read Holding Registers 03 command The following pages show the MODBUS memory map in table form Read Output Coil Status function 01 Point list MODBUS Address PLC Address Register Contents REG 00 10001 Digital Output I REG 01 10002 Digital Output 2 REG 03 10003 Digital Output 3 REG 04 10004 Digital Output 4 E 6 Appendix E MODBUS Communications Read Input Status function 02 Point List MODBUS Address PLC Address
142. igure Site Monitor 43 1A Configure DST Schedule 43 1 Configure Energy Pulses 43 1D Calibrating Loading Flash Memory The other key is used to disable just the meter front panel RESET pushbutton The RESET button is used to perform a Billing Period Reset see the Glossary for definition With the jumpers installed access is enabled Remove the jumpers to restrict access 93 JEMStar User Manual The meter is provided with both keys factory installed If you want to remove the key s after proper configuration in your meter shop follow this procedure 1 Remove power from the meter Remove the outer globe of the meter 3 Remove the top cover of the housing by unscrewing three Phillips head screws below Carefully lift the cover off paying particular attention to the RAM battery wires Do not unplug the battery or data will be lost Top View of meter with globe removed Remove screws at these locations then lift the top cover off Be careful of the battery wires Jumper location beneath the cover Looking from rear of the meter with top cover removed Remove this jumper to disable all configuration access from the meter keypad Remove this jumper to disable the meter s RESET pushbutton 94 Chapter 5 Maintenance The jumpers are standard 0 1 center two pin female shorting connector commonly used on most PC motherboards Contact AMETEK and specify part number 4195 263 or ask your lo
143. inated position upper two pins shorted RZ12 J5 The jumper is standard 0 1 center two pin female shorting connector commonly used on most motherboards Contact Ametek Power Instruments and specify part number 4195 263 or ask your local computer shop for replacements For meters that are not at the ends of the RS 485 network place the jumper in the unterminated position by plugging it onto the bottom two contacts 54 Chapter 2 Installation Dual Communications Option Certain JEMSTAR applications require SCADA type system and retrieval system to exist simultaneously which require two serial communications channels The standard JEMSTAR offers one channel of configurable RS232 485 The Dual Communications board is an optional feature of the JEMSTAR meter which will allow two channels of RS232 485 each channel being user selectable via hardware jumpers on the circuit board Note that the modem option is not available when using the Dual Comm board The dual communications option requires the user to designate parameters for both channels as listed below The channels can be set up using either the meter s front panel keypad or via JEMWare software Network Address Each port may be configurable for any valid communication address as supported by the particular protocol An RS485 link may have no more than maximum of 32 meters daisy chained See the previous CommRepeater section of t
144. ion Analog outputs Alarm outputs Wide Voltage range 55 530V 14400 Baud Modem Call home on power outage or alarm conditions Contact Inputs 36 sets of Self Read registers Easy field upgradeable meter firmware Note Certain features may require the installation of an optional module firmware upgrade or software package JEMStar User Manual Supporting Software The following packages are available for use with JEMStar e JEMWare Configuration Program for setting up the meter s operation Also contained within JEMWare is a Site Diagnostic Tool which will Display the Site Diagnostic registers Plot real time readings on a polar graph e JEMRead Data Retrieval Program to perform the following functions Read and download data registers Read and download Load Profile data Read and download system Health and Status information Read Self Read Registers Read Event Logs Set Time of Day and Date Perform Billing Period Reset UTS MV 90 Translation Interface Module TIM software that can be added to an existing MV 90 system This package will perform the data retrieval functions that are normally assigned by JEMRead For further information contact AMETEK or go to the web at www itron com MV 90 is a trademark of Itron Energy Information Systems Inc 2 Chapter 1 General Information TECHNICAL DESCRIPTION JEMStar offers a large variety of meter register data that can be viewed from the meter s disp
145. ircuits to maximize power and energy measurement accuracy A sudden increase in voltage a swell or current such as that associated with a fault that causes a voltage sag may temporarily overload the meter s inputs causing clipped voltage and current readings and inaccurate measurements The enhanced resolution mode causes the meter to run at lower gain allowing accurate capture of voltage swells up to 100 above nominal volts and current up to the rated input of the meter at the expense of seriously reduced power and energy accuracy especially at light loads NOTE Do not use enhanced resolution mode unless you are willing to accept poor accuracy in your power and energy measurements In enhanced resolution mode all power measurements are made at accuracies listed here Class 20 PF 1 PF 0 5 lagging Input Current Accuracy Accuracy Watthours 3 0 to 20 0 10 RD 0 15 RD per phase polyphase total 2 0 to 3 0 A 0 15 RD 0 15 RD 1 0020 A 0 25 RD 0 25 RD 0 5 to 1 0 A 0 40 RD 0 50 RD Class 20 PF 0 PF 0 5 lagging Input Current Accuracy Accuracy Me 2 0t0 20 A 0 25 RD 0 25 RD 1 0 2 0 0 35 RD 0 35 RD 0 5 to 1 0 A 0 50 RD 0 50 RD 109 JEMStar User Manual Class 20 PF 1 PF 0 5 lagging Input Current Accuracy Accuracy eee buit 2 0 to 20 A 0 25 RD
146. isabled n 1 Guard Tone Disabled n 2 1800 Hz Guard Tone amp Kn Flow Control AT amp Kn selects the flow control method used by the modem n 0 Disabled n 3 RTS CTS n 4 XON XOFF n 5 Transparent XON XOFF n 6 RTS CTS and XON XOFF amp Pn Dial Pulse Make Break Ratio AT amp Pn determines the specific pulse dialing parameters used by the modem n 0 39 61 10 pps n 1 33 67 10 pps n 2 39 61 20 pps amp Qn Line Connection AT amp Qn determines if error control or data buffering are active on the link n 0 Direct mode no data buffering n 5 Use Error Correction n 6 Normal Mode Speed buffering amp Sn DSR Operation AT amp Sn sets the operation of the DSR signal n 0 DSR always active n 1 DSR in accordance with V 25 A 8 amp Tn Test Modes AT amp T selects modem test modes n 0 Exit test mode n 1 Local analog loopback n 3 Initiate local digital loopback n 4 Respond to remote loop request n 5 Deny remote loop request n 6 Initiate a Remote Digital loopback n 7 Remote digital loopback w self test n 8 Local analog loopback w self test amp View Configuration Profiles AT amp V permits the user to check on the modems current configuration n 0 View active profile amp user profile 0 n 1 View active profile amp user profile 1 amp Wn Store Active Profile AT amp Wn stores the current modem configuration in NVRAM n 0 Store active profile as profile 0 n 1 Store active pr
147. ist attached Sends Multi Fragment Responses Yes D 3 JEMStar User Manual THE JEMSTAR IMPLEMENTATION The JEMStar DNP implementation conforms to the standard for Level II slave device with some additions Implementation consists of the following static objects e Up to 40 Single bit Binary Input without flag Object 1 Variation 1 Up to 120 32 bit analog input without flag points Object 30 Variation 3 A configurable number up to 64 of 32 bit counters Object 20 Variation 5 that can be assigned to any register in the Normal or alternate display set e A corresponding number of 32 bit frozen counter without flag Object 21 variation 5 that represent the values of the counter points at the time of the last meter freeze IMPLEMENTATION TABLE The following table identifies the variations function codes and qualifiers supported by the JEMStar meter in both request messages and in response messages For static non change event objects requests sent with qualifiers 00 01 06 07 or 08 will be responded with qualifiers 00 or 01 Static object requests sent with qualifiers 17 or 28 will be responded with qualifiers 17 or 28 For change event objects qualifiers 17 or 28 are always responded In the table below text shaded as Subset Level 3 indicates Subset Level 3 functionality beyond Subset Level 2 and text shaded as IMI TEGER indicates functionality beyond Subset Level 3 REQUEST RESPONSE OBJECT Library wil
148. ived Data Pin 3 for the host equipment When the modem exits data mode it issues a NO CARRIER result code Command Mode The 1414 enters command mode on application of power reset loss of the connection or receipt of the escape sequence In command mode the modem accepts commands from the host on Transmit Data Appropriate result codes are returned on Received Data at the same speed and parity as the commands Fax Mode The modem enters fax mode on receipt of the AT FCLASS 1 command Fax commands and responses are issued at 19 200 bits per second the character format is 8 bits no parity The modem accepts Class I Fax commands only in fax mode The A ATO AT amp T and escape commands are not valid in fax mode Commands The modem is configured and controlled with AT commands AT commands follow a strict format The command line is stored in the command buffer and executed upon receipt of carriage return Until executed the command line can be edited with the backspace key Command Format Each command except A begins with the AT prefix The A and T may be both upper case or both lower case but cannot be of different cases The modem uses the prefix to identify the host s speed and parity The modem determines speed by measuring the width of the incoming bits and parity by comparing the parity A 6 bits of the A and T The modem then returns result codes at the host s speed and parity Command Line
149. k relay opens n 1 The switch hook relay closes In Modem Identification ATIn Identifies the version of the modem Ln Speaker Volume ATLn sets the amplitude of the modem s audio output n 0 Lowest speaker volume n 1 Low speaker volume n 2 Moderate speaker volume n 3 High speaker volume Mn Speaker Activity ATMn determines when the modem s audio output is active n 0 Speaker off n 1 Speaker on until carrier received n 2 Speaker remains on Appendix A Default Configuration n 3 Speaker off during dialing on until carrier Nn Data Rate ATNn selects whether or not the modem will negotiate a lower data link speed n 0 Handshake only at DTE rate n 1 Negotiate highest common speed On On Line ATOn switches the modem from the command mode to the data mode n 0 Return On Line with no retrain n 1 Initiate retrain returning On Line Qn Responses ATQn determines if the modem will issue responses n 0 Send responses n 1 No Responses Sr Interrogate Register ATSr requests the current value in register Sr Sr n Set Register Value ATsr n sets the value of register Sr to n Vn Result Codes ATVn sets the modem to issue Numeric or Full Word result codes n 0 Numeric Result Codes n 1 English Word Result Codes Wn Connect Message Rate ATWn determines whether the data rate reported in the Connect response is the host data rate the link data rate or whether both are provid
150. king Test Time Remaining Load Profile Interval Length Number of channels Interval Sync Freeze Markers Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 Channel 9 Channel 10 Channel 11 Channel 12 Time of Use Setup Appendix A Default Configuration 15 minutes 12 only 4 are operational unless the Extended Load Profile option is installed Internal Enabled Watthours delivered polyphase 0 5 Wh count VARhours delivered polyphase 0 1 VARh count VAhours received polyphase 0 5 VAh count Qhours delivered polyphase 0 5 Qh count Amphours polyphase 0 005 Ah count Average PF delivered phase A 0 001 PF count Average Volts polyphase 0 05 V count Average Amps polyphase 0 015 A count Average Watts delivered polyphase 1 8W count Average Frequency 0 01 Hz count Average Volts distortion phase A 0 01 count Average Amps distortion phase A 0 01 count No Seasons or Time of Use schedules configured No Override Rate No Holidays schedules Timekeeping and DST Changes Meter Clock Sync Internal Auto Register Freeze none Auto Billing Period Reset none Self Read Register 001 Register 002 Register 003 Register 004 DST dates Alarms Site Monitor Alarms Threshold 1 Threshold 2 Threshold 3 Threshold 4 hourly Instantaneous Volts Phase A working Instantaneous Volts Phase B working Instantaneous Volts Pha
151. l parse Library will respond with Object Variation Description Function Qualifier Codes Function Qualifier Codes Number Number Codes dec hex Codes dec hex 1 Binary Input Variation 0 is used to 1 read 00 01 start stop request default variation 06 no range or all 07 O8 limited qty index 1 read 00 01 start 129 response 00 01 start stop kes range 76 28 index 07 O8 limited qty see note 2 17 28 index Binary Counter Variation 0 is used to 1 read 00 O1 start request default variation O6 no range 07 O8 limited qty 17 28 index 1 32 Bit Binary Counter without Flag read 00 O1 start stop 00 01 start stop range or all 17 28 index 07 O8 limited qty see note 2 17 28 index Frozen Counter Variation 0 is used to 1 read OO 01 start stop request default variation O6 no range or all 07 O8 limited qty 17 28 index 32 Bit Frozen Counter without Flag 1 read 00 01 start stop 129 response OO 01 start stop 0 range or all R 28 index 07 O8 limited qty see note 2 17 28 index used to request default variation 07 O8 limited qty 32 Bit Frozen Counter Event with Time range or all 129 response 17 28 index 07 O8 limited qty Analog Input Variation 0 is used to read 00 01 start stop request default variation 06 no range or all 07 O8 limited qty 17 28 index
152. lable from the factory Specify part number 6005 254 4 From the front panel menu select Settings Health Batt Status and then press the Set button until RESET is displayed Press the Set button once more and verify the display changes to BATTERY OK The Date and Time may also need to be set if the meter was taken out of service while changing the battery 91 JEMStar User Manual Phone Home on Power Outage Battery Pack Option JEMStar incorporates a replaceable battery pack that is used to power the internal Phone Home modem during power outages The battery will provide power to the modem for at least 8 hours of call time It is recommended that the battery be changed every three years or sooner if you experience numerous power outages gt To replace the Power Outage battery pack 1 Remove power from the meter 2 Ensure proper grounding 3 Remove the outer globe from the S base or A base model Remove the front cover from the switchboard model 4 On an S based or A base meter remove the top cover The battery pack is the four cell assembly located in holder directly under the cover Unplug the two pin connector and lift the battery up and out of its holder 5 the switchboard model pull the chassis out of the rack by opening the upper and lower retaining latches The battery pack is located under a retainer bracket near the back of the meter Unplug the two pin connector loosen the bracket screws and slide th
153. lay or retrieved using serial communications Some of the register types include consumption summation peak demand time and date of peak demand coincident demand average power factor coincident power factor cumulative continuous cumulative registers and various status registers including date time health status and firmware version JEMStar also has time of use capabilities and most registers can be associated with a particular time of use rate The meter has an internal pulse recorder for storing load profile data The standard meter provides enough memory to store four channels of recorded data in 15 minute intervals for 64 days Utilizing fewer channels will extend the length of time data may be recorded for example reducing the number of channels by doubles the length of recording time Special events such as power failures time sets and demand resets are also stored in the load profile data This data can be retrieved through serial communications using JEMRead software Optionally a custom Translation Interface Module TIM is available for the popular MV 90 software supplied by Itron Inc The JEMStar meter can also provide analog and contact outputs for external monitoring devices Serial communications are performed through an optical port on the front of the meter and communication option board RS 232 RS 485 Ethernet or the internal modem The meter has four levels of password protection with assignable privile
154. lli aS i 1225 Real Apparent Energy UOM to Kilo conversion factor 1226 Qh Delivered pri xQh milli M04 10 1229 Qh Received pri xQh milli 1232 Reactive Q Energy UOM to Kilo Conversion Factor 1233 Amphours pri Ah milli Mod 10 UOM Amp hours pri kAh milli Mod 10 1239 Amps Amp UOM to Kilo conversion factor 1 Volt hours pri kAh milli Mod 10 1243 Volts UOM to Kilo conversion factor 1 Demand P Demand W Delivered Primary E Lon E 18 Appendix E MODBUS Communications MODBUS JEMStar Parameter Units Format Number of Register Registers 1246 Peak Demand W Delivered Primary Long 2 xW milli 1248 Prev Billing Period Peak Demand W Delivered Primary Long 2 xW milli 1250 Real Apparent Power UOM to Kilo conversion factor power of ten Int 1 Demand VAR Delivered Primary Peak Demand VAR Delivered Primary 1255 Prev Billing Period Peak Demand VAR Delivered Primary Alper 2 xVAR milli 1257 Reactive Q Power UOM to Kilo Conversion Factor 1 Demand VA Delivered Primary Peak Demand VA Delivered Primary 1262 Prev Billing Period Peak Demand VA Delivered Primary Eig 2 xV A milli 1264 Real Apparent Power UOM to Kilo conversion factor 1 Demand Prediction E 1265 Predicted Demand W Delivered polyphase Primary Long 2 xW milli Predicted Demand VAR Delivered polyphase Primary a xVAR milli 1008 1269 Predicted Demand VA Delivered polyphase Primary Lone 2 xVA milli 1271 Real Apparent Power UOM to Kil
155. lobe from the S base or A base meter Remove the cover from the switchboard case meter and pull the chassis out of the rack 4 Remove the top housing cover as previously described S base and A base only 5 Remove the ribbon cable 6 Firmly grasp the sides of the I O board at the top of the board and remove s Place the board on an antistatic mat gt To replace the I O option board 1 Reverse the procedure above 2 Use the software utility program included on diskette with the I O board to transfer the proper analog output calibration data into the meter Clock RAM Battery JEMStar contains an easily replaceable battery that is used to power the internal clock and RAM memory The long life cell should provide support for 10 years and its life can be checked from the front panel display There is also a display register Days on Battery that can be read to determine how many days the battery has been used If the meter is in service the battery should be replaced while the meter is under power so that data is not lost the battery is not used as long as service power is connected gt To replace the clock RAM battery 1 Remove the outer globe from the S base or A base model Remove the front cover from the switchboard model 2 The battery is the 1 high cylinder located at the top right side of the meter Unplug the two pin connector and lift the battery out of its holder 3 Install new exact replacement battery avai
156. may request that you remove the equipment from the network until the problem is resolved The customer should not attempt to repair this equipment The modem cannot be used on public coin service provided by the telephone company Connection to Party Line Service is subject to tariffs Contact your state public utility commission public service commission or corporation commission for information Call Home on Power Outage JEMStar can be optionally equipped with an internal modem capable of initiating telephone calls for up to four separate telephone numbers and transmitting a message in the event of a loss of power at the meter The telephone numbers and message are software configurable using JEMWare The internal battery pack that supports this option uses long life lithium cells however if the need arises the batteries can be easily replaced by removing the meter top cover see the Maintenance section 51 JEMStar User Manual Communication Repeater JEMStar can be optionally equipped with Communication Repeater option that allows network of meters to share single internal modem This feature requires the RS 485 option to be installed on all meters connected in the network The JEMStar CommRepeater operates as master to slave configuration Each meter in the network must be assigned a unique communication address via JEM Ware configuration software Multiple meter connectivity is obtained through one CommRepeater master mete
157. med on the assembly at the metering site perform it on the grounded work mat If the assembly is to be transported to the meter shop or other off site location insert the assembly into a conductive antistatic bag for safe transportation If the assembly has a battery installed remove the battery before inserting into the bag for transportation Conductive antistatic bags can cause a battery to discharge during the transportation process C 2 Appendix C Electrostatic Discharge If sensitive components are removed from the assembly at the meter site and are to be reused insert the components with all component leads piercing into a piece of conductive foam carrier into an antistatic bag for safe transportation Static kits including mat wrist strap cord and clip are available through your local electronics supplier C 3 Appendix D DNP Serial Communications APPENDIX DNP SERIAL COMMUNICATIONS INTRODUCTION Distributed Network Protocol DNP 3 0 is an industry standard protocol for SCADA communications between Master Stations Host computers Remote Terminal Units and Intelligent Electronics Devices such as the JEMStar meter It is a public domain non proprietary protocol based on the IEC 870 standards and is intended primarily for use in SCADA like systems DNP as a protocol provides efficient robust data communications through a system of 32 bit data link CRCs Cyclical Redundancy Checks and confirmation message
158. ment if other than the operating site 6 Name and telephone number of person to contact if questions arise Enclose the information with the equipment and pack commercially accepted shipping container with sufficient packing material to insure that no shipping damage will occur Mark the outside of the container with the RMA number Ship to the appropriate location Attention Repair Department AMETEK Power Instruments 255 North Union Street Rochester New York 14605 USA Telephone 888 222 6282 Fax 585 238 4945 C Your equipment will be tested repaired and inspected at the factory Normal factory turn around is ten working days or less excluding shipping time WARRANTY AMETEK warrants equipment of its own manufacture to be free from defects in material and workmanship under normal conditions of use and service AMETEK will replace any component found to be defective upon its return transportation charges prepaid within five years of its original purchase AMETEK will extend the same warranty protection on accessories that is extended to AMETEK by the original manufacturer AMETEK assumes no responsibility expressed or implied beyond its obligation to replace any component involved Such warranty is in lieu of all other warranties expressed or implied
159. meters the connections are provided on terminal blocks Switchboard Analog Output Connections Terminal Signal 8 Aout I 7 Aout I 6 Aout 2 5 Aout 2 4 Aout 3 3 Aout 3 46 Chapter 2 Installation COMMUNICATION PORTS Serial Communications JEMStar uses JEM Binary Protocol on all communication ports The command set allows for the following functions Configure the meter Read registers Read Load Profile Check health and status Set the time Preset registers Perform Billing Period Reset Read recorded events Read Site Diagnostic Data Reload the meter register s operating firmware remote firmware upgrade Validate the user s authorization to perform certain functions Password protection Configuration commands are structured such that any one command may be used to change configurable item without causing the meter to stop running due to mismatch in the total configuration For example reconfiguring the TOU schedule for all Rate 1 periods without a Rate 1 register does not cause the meter to stop functioning The JEMStar supports up to four passwords three with definable privileges The first master password always has total access to meter functions Privileges for each of the other passwords are configurable for any or all of these categories Read Normal register list Read Alternate register list Read any displayable quantity Set Time Perform Billing Res
160. n showing the configured Unit of Measure for Reactive and Q power and energy measurements 0 units VAR 3 kilo units 6 mega units 9 giga units Volt Primary Unit of Measure MODBUS register 1716 A power of ten showing the configured Unit of Measure for Volt measurements 0 units volts 3 kilo units 6 mega units Amp Primary Unit of Measure MODBUS register 1717 A power of ten showing the configured Unit of Measure for Amp measurements 0 units amps 3 kilo units 6 mega units Volt Primary Squared Unit of Measure MODBUS register 1718 A power of ten showing the configured Unit of Measure for Volts Squared measurements 0 units volts squared 3 kilo units 6 mega units Amp Primary Squared Unit of Measure MODBUS register 1719 A power of ten showing the configured Unit of Measure for Amp Squared measurements Appendix E MODBUS Communications 0 units amps squared 3 kilo units 6 mega units e Connection Type MODBUS register 1720 The meter service connection type A 3 wire Delta connection returns 30 while a 4 wire Wye returns 40 e Demand Method MODBUS register 1721 A bit field indicating the demand methods configured in the meter MSB gt 00000000000000ES lt LSB Where E is the External Demand Interval Sync Enabled bit 1 external demand sync 0 internal sync S is the Sliding Window Demand indicator 1 sliding window 0 fixed window e Demand Interval MODBUS
161. n Arrow key 3 times to select Configure 3 Press the Right Arrow key once to select Tstmode 4 Press the Right Arrow key once more to enter Test Mode The display will show TO ENTER Press the Set key to confirm entering Test Mode Exit Test Mode To leave Test Mode 1 Press the Left Arrow key from any Test register The display will show SET TO EXIT Press the Set key to confirm leaving Test Mode Note Pressing the Reset key while in Test Mode will zero out all cumulative Test registers 83 JEMStar User Manual Navigating in Test Mode To view a Test Register 1 Press the Up or Down Arrow as needed to select the desired register The content of the register will be displayed in the numeric field above the menu lists To turn Loss Compensation on or off 1 2 3 Press the Up Arrow key as needed to reach the first register in the Test list which is the Loss Comp status The field above the menu lists will show ENABLED Note This is default Test setting only and has no affect over the actual meter configuration The configuration setting as sent from JEMWare governs whether TLC is actually enabled or disabled Press the Set key The ENABLED DISABLED will be highlighted Press the Up or Down Arrow key to toggle between ENABLED and DISABLED state When the correct state is displayed press the Set key to accept the new state Note After leaving Test Mode Loss Compensation will automaticall
162. n external wetting source The external source must have the following characteristics e Minimum ON voltage 10VDC e Maximum ON voltage 40VDC 39 JEMStar User Manual e Current limited to 50 mA JEMStar will de bounce both make and break transitions on each contact input for at least 20 milliseconds The maximum detectable pulse rate is 10 transitions per second For the S Base and A Base meter styles JEMStar contact input connections are provided via a multi conductor cable The wire colors are as follows Contact Input Connections Color Signal Wht Brn Blk Din I Wht Brn Din 1 Wht Blu Din 2 Wht Blu BIk Din 2 For Switchboard style meters the connections are provided on rear mounted terminal blocks Switchboard Contact Input Connections Terminal Signal 20 Din I 19 Din 1 18 Din2 Rx 17 Din 2 Rx NOTE If the Ethernet option is installed terminals 17 and 18 can be configured for either Din2 or Ethernet RX Refer to the Ethernet Switchboard Interface Board section on page 60 for jumper settings 40 Chapter 2 Installation SIGNAL OUTPUT OPTIONS Contact Outputs JEMStar can be equipped with either of two optional contact I O boards the DI DO board that consists of four Form A N O contact outputs or the 5 K YZ board that consists of five Form C N O N C contact outputs Note Only one type of contact output board can be installed in
163. n sequence with data Break received from host with Direct link n 0 Immediately transmit break then enter on line command mode n Immediately send break n 2 Enter command mode but do not transmit break signal n 3 same as n 1 n 4 ame as n 0 n 5 same as 1 Break received from modem w Normal link n 0 Purge buffers Immediately send break to the host n 1 same as n 0 n 2 Immediately send break to the host n 3 Same as n 2 n 4 Send break in sequence with data n 5 Same as n 2 Host initiates break with B command on Reliable link n 0 Purge buffers and immediately transmit break n 1 Same as n 0 n 2 Immediately transmit break n 3 Same as 1 n 4 Transmit break in sequence w data n 5 Same as n 4 Nn Error Control Selection AT Nn determines how the modem will handle error control negotiations n 0 Normal mode no error correction n 1 Direct mode no buffering no error correction n 2 Reliable mode error correction required for connection n 3 V 42 Auto reliable mode accept either an error controlled or non error controlled link n 4 V 42 Reliable mode LAPM required n 5 MNP required Appendix A Default Configuration Kn MNP Extended Services AT Kn determines how the modem handles MNP10 n 0 No LAPM to MNP10 conversion n 1 LAPM to MNP10 conversion n 2 LAPM to MNP10 conversion but no MNP Extended Service during V 42 LAPM answer mode detect SO Answer on nth Ring SO sets the modem to automatic
164. nced programmers fluent in communication interfaces undertake such a task External Synchronized Load Profile Interval Closures External interval tracking in the meter affects the load profile channels For that reason load profile interval length should match demand interval length When configured for external synchronization the meter uses two time sources one for determining interval closure and one for the meter s real time clock Data skewing is possible if a synchronization pulse occurs on the load profile interval boundary External Control of Load Profile Recording JEMStar can be optionally configured to only record Load Profile data during externally triggered periods This can be user selected on a per channel basis which means that some channels can record constantly and some can record upon command from an external source JEMWare can be used to configure any Load Profile channel to record when the TOU Rate Override contact input is ON To configure this operation in JEMWare 1 Go to the Load Profile menu and either Add a new LP channel or highlight an existing one to Edit 2 In setup screen choose Records During TOU Override Only Choose OK 3 Go to the Contact Input Output menu and set one of the two Input channels for TOU Rate Override 4 Apply a signal to the Contact Input to begin LP recording on the designated channel Notes e The TOU Rate Override input does not affect interval timing in any way I
165. ndefined F 5 JEMStar User Manual Decade 3 Decade 3 Local Display Tables Table Title Description Read No Write 30 Dimension Maximum dimensional values for local display operation Display Limiting Primary Display List Configuration of Secondary display list data timing scroll etc Display List 35 36 38 undefines Decade 4 Decade 4 Security Tables Table Title Description No 40 Dimension Maximum number of passwords and security access levels in end Security Limiting device 41 Actual Security Actual number of passwords and security access levels in end Limiting device 4 Passwords Read Write and Execute permission flags Default Access Default table and procedure access permissions for tables not Control included in Table 44 4 Access Control Table and procedure access permissions for tables not using default R access control Authentication and or encryption keys undefined undefined PO 48 undefined 49 Jendfind PG F 6 Appendix F ANSI Tables Communication Decade 5 Decade 5 Time and TOU Tables Table Title Description Read No Write 50 Dimension Limiting Maximum capabilities for Date amp Time and TOU control Time and Time of Use 51 Actual Time and TOU Actual capabilities for Time amp Date and TOU control Limiting 52 Clock Realtimeclock PR 53 Time Offset Time zo
166. ne offset and DST information 54 Calendar Schedule definition table 55 Clock State 56 Time Remaining Predictive time quantities SU undefined 58 undefined 59 undefined Decade 6 Decade 6 Load Profile Tables Description Read Write Dimension Limiting Maximum capabilities of Load Profile Load Profile Actual Load Profile Actual Load Profile capabilities Limiting Load Profile Control Data sources and formats used In Load Profile 63 Load Profile Status Status of each Load Profile data set R 64 Load Profile Data Set Load Profile data information set 1 1 R 2 3 4 68 undefined 69 undefined F 7 JEMStar User Manual Decade 7 Decade 7 History and Event Logs Limiting Log Maximum size and capabilities of History and Event Logs Dimensions Actual Log Actual size and capabilities of History and Event Logs Dimensions Event Events supported by end device Identification Defines Event Log codes to be written to the Event Log The Event Log contents 78 undefined 79 cundefinew Decade 8 Decade 8 User Defined Tables Table Title Description N Dimension Maximum values and control parameters for user defined Function Limiting tables History Log Defines History Log codes to be written to History Log Control No 70 71 72 73 74 History Log Data The History Log contents 75 76 77
167. ng both the High Order amp Low Order words must be included in the request or the command will be rejected The JEMStar MODBUS interface can access data in either RTU or ASCII mode The supported Register Sets and MODBUS Function Codes FC used to retrieve the data are as follows Function Code FC Register Set 01 Read Discrete Outputs 02 Read Discrete Inputs 03 Read Holding Registers native data types 04 Read Input Registers Scaled and Cascaded 05 Force Single Discrete Outputs 15 Force Multiple Discrete Outputs 16 Preset Multiple Holding Registers LRC Calculation ASCII mode When the JEMStar MODBUS interface operates in ASCII mode it uses LRC for error checking The LRC value is one byte contained in two ASCII characters The LRC consists of the 2 s complement of the byte sum of all the binary byte values after each pair of ASCII coded hex characters are converted to a byte of the Device Address through the last Data byte Neither the Start of Message colon nor the carriage return line feed pair is included in the LRC calculation The LRC value is calculated by the transmitting device that appends the LRC to the message The receiving device recalculates the LRC and compares it to the value in the message If the values are not the same the receiver ignores the message CRC Calculation RTU mode The MODBUS interface also operates in RTU mode and uses CRC for error checking The CRC value is two bytes cont
168. nmental RR 21 Agency Standards and Certification 22 Meter 23 23 SIZE DE tenester 23 Warming eoo iet reed e ee MAS 26 External Connectiotls ec eee c 38 Grounding Recommendations 38 eneste 38 la PT 39 Contact akan ics weirs e E OE EOD eise ete ee i oe 39 OPU ONS mE 41 Contact O tputs inne tette e ETHER E EH rd 41 Analog OPUS 45 Communication 47 Serial 47 Optical Pormes e ci ee 47 RS EE e e e e NG r 48 RNA 49 Modem 50 Call Home on Power re ep 51 Communication RET 52 Dual ommignicalions Om 55 Ethem t Senal Pott eee ee ere RR e RR ee M deg 58 External Ethernet CODIGOS se 4 59 Ethernet Switchboard Interface essere 60 Meter OperatlOi 5 2 6 6 epis soto se eoo vs e eaa rato eos b de 63 Meter Nameplate and User Intezface un a 63 MD 63 Merle 64 User Interface meter anden 64 The LISP lay 65 CONG 66 Default Time Displays
169. ns This configuration procedure is fully described in the JEM Ware software manual 1083 602 JEMStar Status Register values are displayed as eight digit hexadecimal numbers although only three digit positions are applicable to status reporting All other digits will be zero and should be disregarded The format of the displayed number is MT P The digit in the M position reports Meter status The digit in the T position reports the Threshold Alarm status The digit in the P position reports the Potential Indicator status The digits in the position are always zero Meter Status Four conditions are reported in the Meter status digit Battery Warning Configuration Default Site Monitor Warning and External Status Input Battery Warning occurs when the meter has spent more than a cumulative 2 years in a powered down state drawing battery power to maintain memory This does NOT indicate that the battery is low simply that the user should consider replacing it Configuration Default occurs when a non recoverable error is detected in some part of the meter s Configuration tables and the meter has switched that part to a default configuration Site Monitor Warning indicates that the meter has detected an alarm condition that the Site Monitor system was configured to report External Status reports the state of the optional contact input when the input is configured as a Status indicator If both contact inputs are configured as
170. nswer after 1 ring out of window Modem Phone Home settings none Modem Power Fail Phone Home settings none Ethernet DHCP Not selected IP Address 0 0 0 0 Subnet Mask 0 0 0 0 Default Gateway 0 0 0 0 IP Port 2000 Max Connections 4 Device Address 04 Protocol JEM Binary Display Setup Preset mode timeout 15 minutes Test Mode timeout 30 minutes Demand Reset lockout 0 Display s Number of Digits 6 Scroll rate 5 seconds Date Format MM DD YY Threshold 1 alarm action Ignore Threshold 2 alarm action Ignore Threshold 3 alarm action Ignore Threshold 4 alarm action Ignore Site alarm action Ignore Passwords Permissions TLC Master Password permissions are always all Password 2 permissions none Password 3 permissions none Password 4 permissions none All passwords set to 000000 six zeros Loss Compensation disabled A 5 JEMStar User Manual Internal Modem Initialization Commands Modes of Operation The Xecom XEI414B uses AT commands for control and configuration The XE1414B operates in three modes Command Mode Fax Mode and Data Mode Extensions to the AT command set support fax operation Data Mode The modem enters data mode after it establishes link and issues CONNECT result code In Data Mode the modem modulates all signals on Transmit Data Pin 13 and sends them to the remote modem The modem demodulates the signal from the remote modem and places it onto Rece
171. nt complies with Part 68 of the FCC rules governing communications devices On the meter face is label that contains the FCC registration number and Ringer Equivalence Number REN for this equipment This information must be provided to the telephone company if requested This equipment should be connected to a standard RJ11 Telco jack The REN is used to determine the quantity of devices that may be connected to a telephone line Excessive REN s on the telephone line may result in the devices not ringing in response to an incoming call In most cases the sum of the REN s should not exceed five To be certain of the number of devices that may be connected to your specific line as determined by the number of REN s contact your local telephone company If the modem causes harm to the telephone network the telephone company will notify you as soon as possible In addition you will be advised of your right to file a complaint with the FCC should this be necessary The telephone company may make changes in its facilities equipment operations or procedures that could affect the operation of the equipment If this happens the telephone company will provide advance notice for you to make the necessary modifications so that your service is not interrupted If trouble is experienced with this modem please contact Ametek Power Instruments for repair and warranty information If the trouble is affecting the telephone network the telephone company
172. nteraction i e pressing buttons it will automatically revert to normal display operation after 1 minute factory default setting The length of time can be configured for up to 60 minutes by changing the Preset Mode timeout under Display Setup in JEMWare Register Display Modes The meter registers can be grouped in three different display modes Normal Alternate and Test JEMStar can display up to 50 Normal and 50 Alternate registers Normal Mode is the usual display mode of the meter If display Scrolling is enabled via JEMWare the Normal Mode registers are sequentially displayed at a user configurable rate 69 JEMStar User Manual TIP If the meter is configured for a scrolling display you can halt it by pressing and holding the SET button for 5 seconds This will stop the display indefinitely Pressing the READ button will return the display to scroll mode Alternate Mode registers are second group of registers that are not displayed in the Normal Mode These registers could be used as convenient method to group storage registers or any other user purpose They are accessible to the meter reader by pressing and holding the READ button for at least two seconds To return to Normal registers press and hold the READ button again for two seconds While in Normal or Alternate Mode if the meter detects System Error condition for example Battery Warning each time new register is presented an error messag
173. nteroperability configuration guide for the JEMStar meter e the Implementation Table e the Point List Tables e Configuration methods DNP V3 00 DEVICE PROFILE DOCUMENT Vendor Name AMETEK Power Instruments Device Name _ JEMStar using the Triangle MicroWorks Inc DNP 3 0 Slave Source Code Library Ver 2 19 Highest DNP Level Supported Device Function For Requests Level 2 Master For Responses Level 2 Slave Notable objects functions and or qualifiers supported in addition to the Highest DNP Levels Supported the complete list is described in the attached table For static non change event object requests request qualifier codes 00 and 01 start stop 07 and 08 limited quantity and 17 and 28 index are supported in addition to request qualifier code 06 no range or all points Static object requests received with qualifiers 00 01 06 07 or 08 will be responded with qualifiers 00 or 01 Static object requests received with qualifiers 17 or 28 will be responded with qualifiers 17 or 28 For change event object requests qualifiers 17 or 28 are always responded The read and write function code for Object 50 Time and Date variation 1 is supported Maximum Data Link Frame Size octets Maximum Application Fragment Size octets Transmitted 292 Transmitted 2048 Received 292 Received 2048 Maximum Data Link Re tries Maximum Application Layer Re tries Configurable from 0 t
174. nterval Demand Amp Phase A Past Interval Demand Amp Phase B Past Interval Demand Amp Phase C Past Interval Demand Neutral Amp Past Interval Demand Peak Demand Watt Delivered Peak Demand VAR Delivered Peak Demand VA Delivered Peak Demand Amp Phase A Peak Demand Amp Phase B Peak Demand Amp Phase C Peak Demand Neutral Amp Peak Demand Watt Delivered at last BPR Peak Demand VAR Delivered at last BPR Peak Demand VA Delivered at last BPR Time of Peak Demand Watt Delivered Time of Peak Demand VAR Delivered Time of Peak Demand VA Delivered Time of Peak Demand Amp Phase A Time of Peak Demand Amp Phase B Time of Peak Demand Amp Phase C Time of Peak Demand Neutral Amp Time of Peak Watt Delivered at last BPR Time of Peak VAR Delivered at last BPR Time of Peak VA Delivered at last BPR PF at Peak Watt Delivered at last BPR PF at Peak VAR Delivered at last BPR PF at Peak VA Delivered at last BPR Watt Delivered Predicted Demand VAR Delivered Predicted Demand VA Delivered Predicted Demand Other data formats that may be assigned to display registers include e Time and Date registers are represented as seconds since midnight 1 1 70 e Diagnostic and String register types will be represented as 0 e Status registers will be represented as a direct 32 bit mask value The corresponding frozen counter object is implemented as Object 21 Variation 9 The values of the points in this object represent the values of the corresponding counter points at the
175. o 255 Via JEMWare None Requires Data Link Layer Confirmation Configurable as Never Only for multi frame messages or Always via JEMWare Requires Application Layer Confirmation When sending multi fragment responses Sometimes D 2 Appendix D DNP Serial Communications DNP V3 00 DEVICE PROFILE DOCUMENT Timeouts while waiting for Data Link Confirm Configurable via JEMWare Complete Appl Fragment None Application Confirm Configurable via JEMWare Complete Appl Response None Others Transmission Delay Configurable via JEMWare Inter character Timeout 1 sec Need Time Delay Configurable via JEMWare Frozen Counter Event scanning period FIXED AT 5 seconds Sends Executes Control Operations WRITE Binary Outputs Never SELECT OPERATE Never DIRECT OPERATE Never DIRECT OPERATE NO ACK Never Count gt I Never Pulse On Never Pulse Off Never Latch On Never Latch Off Never Queue Never Clear Queue Never Reports Binary Input Change Events when no Reports time tagged Binary Input Change Events when no specific variation requested specific variation requested Never Never Sends Unsolicited Responses Sends Static Data in Unsolicited Responses Never Never No other options are permitted Default Counter Object Variation Counters Roll Over at Default Object 20 32 Bits Default Variation 5 Other Value 999 999 999 Point by point list attached Point by point l
176. o conversion factor 1 1272 Reactive Q Power UOM to Kilo Conversion Factor 1 Demand Current 1273 Demand Current Phase Primary milli 2 amps 1275 Demand Current Phase B Primary milli 2 amps 1277 Demand Current Phase C Primary milli 2 amps 1279 Demand Current Phase N Primary milli 2 amps 1281 Peak Demand Current Phase A Primary milli 2 amps 1283 Peak Demand Current Phase B Primary milli 2 amps 1285 Peak Demand Current Phase C Primary milli 2 amps 1287 Peak Demand Current Phase N Primary milli 2 amps frime of Peak Demand eim TER 1289 W Delivered polyphase 3 1292 VAR Delivered polyphase 3 1295 VA Delivered polyphase Time 3 E 19 JEMStar User Manual MODBUS JEMStar Parameter Units Format Number of Register Registers Demand Current Phase B 1301 Time 3 iDemand Current Phase C 1304 Time 3 iDemand Current Phase N 1307 Time 3 Prev Billing Period Peak W Delivered 1310 3 1313 Prev Billing Period Peak VAR Delivered 1316 Prev Billing Period Peak VA Delivered d B B B e 1319 PF milt 1320 PF milli 1321 PF milli et et 1400 1401 600 1619 1700 Date Time 1702 1704 1705 1707 Register Firmware Version 1708 1709 Health Status C 1710 VT Ratio 1 1712 T Ratio x 1 et 3 et et a ec in 5 ga 1714 IW VA Wh VAh Primary Unit of Measure ower of ten
177. oad Profile Channel Four of these registers contain bit fields that detail the operation of the Display or Channel Offset Name Contents 0 Reg Type Describes the Type Numeric Time Status ID or Totalization of Display Register or Load Profile channel 1 Quantity Type Describes the measurement quantity of a Numeric or Totalization Used only if Reg Type is Display Register or Load Profile channel Numeric or Totalization otherwise contains zero 2 Demand Quantity Type If this Display Register is a Coincident Demand this describes the Used only if Reg Type is measurement quantity of the Peak Demand associated with it Numeric Coincident Demand to indicate quantity of associated Peak demand Otherwise contains zero 3 Reg Format This describes how the Display Register or Load Profile channel data is to be interpreted and formatted for display 4 Reg ID Number The Identification number assigned by the user to this Display Register or the Load Profile Channel Number 5 14 Text Description 20 bytes of text padded with nulls that the user assigned to be displayed with this Display Register This will contain all nulls for Load Profile channels Reg Type The Reg Type register contains a number of bit fields that describe the basic type of the Display Register or Load Profile channel Reg Type MSB gt tttaaalldddnnnnn lt LSB Where ttt is the Register Type 0 Numeric Power Display Regist
178. odies come in contact or proximity equilibrium is achieved by a sudden flow of current Most people associate a static discharge with a small blue arc and a sharp snapping noise It is important to note that static charges of a level too low to produce a detectable arc can still damage unprotected electronic components Another important consideration is that even though a safe encounter has been achieved between two physical bodies any subsequent encounter with a third fourth or more bodies must be protected in the same manner since a static potential difference may exist between the now combined first two bodies and any unknown new body Warning The first step in the above example is to de energize the meter so that the meter is completely isolated from all service lines Never dismantle an energized meter The following static control equipment is required 1 Conductive work mat 2 Ground cord attached to true earth ground 3 Conductive wrist strap 4 Electrically conductive bag Caution Unless you are certain that the meter enclosure is properly earth bonded do not attach the ground cord to the meter enclosure Never attach a ground cord to the distribution system neutral or any other point inside the meter enclosure as this can present a serious safety hazard Attach the conductive work mat and the conductive wrist strap to the ground cord Put on the wrist strap and remove the assembly from the meter If work is to be perfor
179. of separate computer Some configuration functions are settable directly from the meter while others will require setup through the JEM Ware software program The hardware Security Key must be installed in the Metrology board to access the keypad functions of the meter Refer to Chapter 5 Maintenance for a complete description of the Security Key features The keypad located at the right side of the meter s faceplate consists of seven buttons With the meter cover or globe in place you can only press the READ button which allows you to scroll through and view the meter s display registers The RESET button performs a Billing Period Reset and is available on a closed meter To use the button you must first remove any external seals and then twist the button 90 clockwise to unlock it Also a separate Security Key on the Metrology board is provided which can disable just the Reset button Refer to Chapter 5 Maintenance for further information With the meter cover or globe removed all configuration buttons are accessible to the user This allows you to enter the setup menus by pressing any one of the four arrow buttons JEMStar Front Panel Controls 64 Chapter 4 Test amp Calibration The JEM Star Display The display is divided into several sections that are dedicated to show specific meter functions or operations Annunciator Section Potential Indicators Reactive Flow Watts Flow LB tj d l
180. ofile as profile 1 amp Yn Recall Stored Profile AT amp Yn sets the stored modem configuration to be used after a hard reset n 0 Recall profile 0 on power up n 1 Recall profile I on power up amp Zn x Store telephone number x in memory location n Zo En Line Quality Monitor Auto Retrain AT En determines if the modem will monitor line quality during a connection and initiate a retrain if quality drops below acceptable levels n 0 Disabled n 1 Enabled n 2 Line quality fallback fall forward n 3 33 67 20 pps L Read Received Signal Level AT L permits the user to read the magnitude of the receive signal in dBm Q Read Line Signal Quality AT Q permits the user to read the EQM value of the received signal MNP Block Size ATIAn sets the block size for MNP data packets n 0 Maximum 64 characters n 1 Maximum 128 characters n 2 Maximum 192 characters n 3 Maximum 256 characters Bn Transmit Break AT Bn selects the duration of the break signal sent Break n x 100 msec Modem Port Flow Control n 0 No Modem Port Flow Control n 1 XON XOFF Port Flow Control Break control determines how the modem will handle a break signal Break received from host with Reliable link n 0 Enter on line command mode do not transmit break n 1 Purge buffers immediately transmit break n 2 Same as n 0 n 3 Immediately send break n 4 same as n 0 n 5 Send break i
181. ols RS 485 Description Supports Tx Rx Gnd signals Configurable for 300 to 38400 baud Mutually exclusive with RS 232 option Configurable for all JEMStar protocols Network up to 32 meters with CommRepeater option Recommended max cable length 4000 feet actual length is dependent upon environment Dual Communication Option Description 2 independent serial ports User configurable for RS 232 or RS 485 Modem is NOT available with this option Internal Modem Option Description Configurable for 300 to 14400 baud Configurable answer schedule Configurable for JEM Binary protocol Compliance CCITT V 34 bis V 34 V 32 bis V 32 V 22 bis V 22 and V 21 Bell 212A and 103 Speeds 14400 9600 2400 1200 and 300 bps Industry Standard command set V 42 MNP protocols Error correction V 42 MNP 2 4 and MNP 10 Data Compression V 42 bis and MNP 5 19 JEMStar User Manual Call Home on Power Outage Modem Option Description Internal modem that calls up to 4 telephone numbers and transmits message during power failure User configurable phone numbers and messages Communication Repeater Description Permits up to 32 meters to be grouped using a single internal modem Requires the RS 485 option installed in each meter of group Ethernet Option Features include 10 Base T physical layer RJ45 connector Up to four simultaneous connections Supports all available serial
182. oly Rec REG 55 30086 Instantaneous Uncompensated PF 0 1 00 0 32767 Phase A Del REG 56 30087 Instantaneous Uncompensated PF 0 1 00 0 32767 Phase A Rec REG 57 30088 Instantaneous Uncompensated PF 0 1 00 0 32767 Phase B Del REG 58 30089 Instantaneous Uncompensated PF 0 1 00 0 32767 Phase B Rec REG 59 30090 Instantaneous Uncompensated PF 0 1 00 0 32767 Phase C Del REG 5A 30091 Instantaneous Uncompensated PF 0 1 00 0 32767 Phase C Rec REG 5B 30092 Instantaneous Uncompensated PF 0 1 00 0 32767 Poly Del REG 5C 30093 Instantaneous Uncompensated PF 0 1 00 0 32767 Poly Rec REG 5D 30094 Instantaneous Uncompensated Watts 10600 to 32768 to Phase A Bidirectional 10600W 32767 REG 5E 30095 Instantaneous Uncompensated Watts 10600 to 32768 to Phase B Bidirectional 10600 W 32767 REG 5F 30096 Instantaneous Uncompensated Watts 10600 to 32768 to Phase C Bidirectional 10600 W 32767 REG 60 30097 Instantaneous Uncompensated Watts 31800 to 32768 to Polyphase Bidirectional 31800 W 32767 REG 61 30098 Instantaneous Uncompensated VARs 10600 to 32768 to Phase A Bidirectional 10600 VAR 32767 REG 62 30099 Instantaneous Uncompensated VARs 10600 to 32768 to Phase B Bidirectional 10600 VAR 32767 REG 63 30100 Instantaneous Uncompensated VARs 10600 to 32768 to Phase C Bidirectional 10600 VAR 32767 REG 64 30101 Instantaneous Uncompensated VARs
183. one AT amp G2 3 Not Used S27 General Bit Mapped Options S27 reflects the state of several AT commands BitO 1 3 0 0 0 Normal Mode AT amp QO 1 0 1 2 Error control enabled AT amp QS 0 1 1 Direct Mode AT amp QO Bit 2 4 5 7 Not Used Bit 6 0 CCITT Protocols ATBO 1 Bell Protocols ATB1 A 0 disables the inactivity timer Range 0 to 255 Units 10 Seconds Default 0 S31 General Bit Mapped Options S31 stores the status of various AT commands Bit 0 0 No single line Connect messages ATWO I Use single line connect messages ATWI Bit 1 0 No Automode detection ATNO 1 Automode detection active ATN1 Bit 2 3 0 Report host speed ATWO 1 Report all parameters ATW1 2 Report modem speed only ATW2 Bit 4 7 Not Used 32 Character S32 determines the ASCII character to be sent as XON for in band flow control Range 0 to 255 Units ASCII Character Default 11 VT 33 XOFF Character S32 determines the ASCII character to be recognized as XOFF for in band flow control Range 0 to 255 Units ASCII Character Default 19 DC3 JEMStar User Manual S36 LAPM Failure S36 instructs the modem what to do if the error control negotiations fail Bit 0 2 0 Modem Disconnects 1 Establish Direct Connection 3 Establish normal Connection 4 Disconnect if MNP handshake fails 5 Establish Direct Connection if MMP handshake fails 7 Establish Normal Connection if MNP handshake fails
184. ory Time set can be performed at the meter or by use of serial communications Daylight Saving Time Adjustment events are stored Changes are programmed via the JEM Ware program The DST change start and stop times are recorded Entries and exits are recorded as events No load profile data is recorded during the Test Mode Test Mode can be initiated at the meter or through serial communications Configuration Event A configuration event is stored in the load profile memory Load profile data is erased when any load profile related parameter is configured The configuration event is executed only through serial communications Freeze Event freeze event will cause the meter to take snapshot of the Normal and Alternate Mode registers When the meter reads these registers via serial communications the value stored at the time of the most recent freeze event is returned This event is executed only via serial commands Demand Reset Indicates the time of storage register updates and register clearing This command can be initiated from the meter or through serial communications Register Preset Indicates the time of storage register presetting when used This command can be initiated from the meter or through serial communications Midnight Indicates when midnight occurs in the Load Profile sequence of events All recorded events include the following information e The date and time at whi
185. ours per pulse and the third register is a power of ten The complete interval s accumulation for that channel is found by multiplying the first register by the second register then multiplying the result by 10 raised to the power in the third register E 24 Appendix E MODBUS Communications LP Header The Load Profile Header is data structure that describes the JEMStar s implementation of Load Profile for MODBUS retrieval Register Register Name Register Description Notes Offset Table of Contents Beginning register of record which lists the This is a pointer to the block where the register numbers that are being logged for 1 12 channels are defined by listing the this data log 0 specifies that the data log is first register corresponding to the value logged in that register JEMStar reads Register 2950 1 File Type Specifies the file type i e data log EMStar reads 1 waveform capture etc Set to I for Data Log 3 Record Size Record size in registers max 39 including Calculated by JEMStar based on date time stamp Table of contents will hold Recorder Contents Record Size 3 registers Record Entry Enable Record entry enable FFFF disable 0000 EMStar is FFFF by default Disable for data log files Entry Update IntervallEntry update interval in minutes for data JEMStar s configured Load Profile log files synchronized to entry interval interval length in minutes offset time Entry Interval Offset
186. play or press the READ button to escape Note Automatic meter actions that are configured to activate on non existent date are automatically changed to occur at the same time on the first day of the following month Example An auto billing period reset configured to occur at midnight on the 30 day of each month will do so each month except February In that instance the BPR will occur at midnight on March 1 day is defined to begin at midnight 00 00 00 am and end after 11 59 59 Health Status The meter has several internal safeguards that verify its own operation You can check the status of these monitors from the display menus by going to Settings Health Status and then choose a feature Battery Status Monitors the internal RAM battery and advises if OK Configuration Verifies if the meter s configuration is acceptable Note that this only checks for conflicts in the setup individual settings could still be incorrect for your specific application Site Monitor Indicates if the parameter assigned as a Site Monitor in JEMWare is Normal or in the Alarm state Threshold 1 2 3 4 Indicates if a monitored parameter assigned as a Threshold Alarm in JEMWare is Normal or in the Alarm state 75 JEMStar User Manual Interpreting Status Register Values in the JEMStar Display In addition to the Health Status display previously described the user can assign Normal or Alternate registers to report various status functio
187. polyphase total VARhours delivered received per phase polyphase total VAhours delivered received per phase polyphase total Amphours per phase up to 3 phases polyphase total Qhours delivered received per phase polyphase total V hours A hours per phase polyphase total Instantaneous quantities Instantaneous quantities are short term average or RMS measurements of electrical characteristics in circuit Instantaneous quantities are suitable for Instantaneous Registers Thermal Demands or analog outputs JEMStar measures the following instantaneous quantities e Watts and VARs delivered received or bidirectional per phase polyphase VA delivered received or bidirectional per phase polyphase Q delivered received or bidirectional per phase polyphase Volts and Volts per phase up to 3 phases System Volts average of 2 or 3 phases depending on meter form Amps per phase polyphase plus Neutral Current Amps per phase polyphase PF per phase polyphase Frequency Volts THD per phase Amps THD per phase Chapter 1 General Information Uncompensated Quantities JEMStar is able to simultaneously provide both uncompensated and transformer or line loss compensated measurements for Watt Watthour VAR VARhour V VAhour Qhour and Power Factor quantities in Display Registers Load Profile and KYZ pulse outputs Analog outputs are always loss compensated if compensation is enabled in the meter Optional Features
188. protocols Modbus RTU ASCII slave mode DNP 3 0 ANSI Tables JEM Binary 20 Chapter 1 General Information Environmental Specification Operable in weather rain and salt spray environments as specified in ANSI Standard C12 16 Sections 7 2 and 7 4 Operating Temperature Range 30 to 85 C continuous with no coincident solar influence Basic meter accuracy is derated by 75 ppm of Reading per degree C variance from nominal 23 Display Operating Range Readable 20 to 85 C with no coincident solar influence Storage Range Unpowered 40 to 85 C Humidity 5 to 95 relative humidity non condensing External Magnetic Fields Compliance with ANSI Standard C12 16 1991 American National Standard for Solid State Electricity Meters Section 10 2 4 RF Interference RFI Compliance with ANSI Standard C12 16 1991 American National Standard for Solid State Electricity Meters Section 10 2 10 Electrostatic Discharge ESD Compliance with ANSI Standard C12 16 1991 American National Standard for Solid State Electricity Meters Section 10 2 11 Insulation Voltage Current Inputs In accordance with ANSI Standard C12 16 1991 American National Standard for Solid State Electricity Meters Section 10 2 1 Auxiliary Power Input 1500 Vrms 60Hz for 1 minute between Aux Power Switchboard only and voltage input 2500 Vrms 60Hz for 1 minute between Aux Power and all other inputs outputs and case Contact
189. quantity An Illegal Data Address for a Function 06 command would be any register other that 0x16 The meaning of the Data Value depends upon the command The Data Value for a Function 03 command is the number of Holding registers requested starting with the first Data Address register If the sum of the first register and the number of registers is either greater that Ox3F or results in the request of only one word of any 32 bit quantity an Illegal Data Value exception is generated An Exception Response is the JEMStar s Device Address the function value with the High Order Bit set to 1 and the Exception Code followed by either the LRC ASCII mode or the CRC RTU mode For example in RTU mode an Illegal Data Address exception to a function 03 request would be Exception Byte Contents Example 1 JEMStar Device Address 5 2 Marked Function Code 83 3 Exception Code 02 4 High Order Byte CRC XX 5 Low Order Byte XX Timeouts RTU Mode The timeout period from the reception of matching Device Address until that message is completed is software assignable using JEMWare software If a timeout occurs the portion of the message already processed is discarded and the meter will again look for a matching Device Address The default timeout is I second ASCII Mode In ASCII mode the timeout is meaningless to the JEMStar since it is always the SLAVE Device Whenever a colon character is encounte
190. r Factor per 0 004 FS VAphase phase Instantaneous Power Factor system BOUES Porno mes 0 004 2FS VAsystem 0 004 3FS VAsystem Volts THD 1 0 absolute Amps THD 1 0 absolute Frequency phase A volts 0 03 RD The single cycle RMS voltages and currents measured by the Sag Swell detection system operate at an accuracy of 196 of reading regardless of the setting of the enhanced resolution mode The Sag Swell Event Log records measurements of interest to engineers researching power quality issues Each event records the following information For each of 3 phases Maximum voltage Minimum voltage Average voltage Maximum current Minimum current Average current Average PF For the entire event e Time at which it occurred or began resolved to I second e Duration of the event in cycles e Status event type and phase of the event The Sag Swell event system can detect and log voltage sags or swells on each phase that are up to 600 cycles in length as a single event Sags or swells that exceed that length are logged as two events the first records the time at which the sag or swell began and the voltages and currents associated with its first 600 cycles The second logged event records the time at which the sag or swell ended and an indication that it is the end of a long event The possible Status codes are therefore Events up to 600 cycles in length e Volts sag e Volts B sag e Volts C sag e Vol
191. r Minute 0 59 Second 0 59 E 23 JEMStar User Manual Mod10 x 3 The Mod10 x 3 format is three MODBUS registers sent consecutively to form 12 digit decimal value encoded thus First register 4 least significant of 12 digits of complete value in binary 0 9999 Second register 4 middle of 12 digits of complete value in binary 0 9999 Third register 4 most significant of 12 digits of complete value in binary 0 9999 Therefore the complete value is 1018 R2 amp 1014 R1 This format can accommodate values from 0 to 999 999 999 999 decimal Display The Display format varies depending on the exact definition of a given display item by the user JEMStar Displays can contain numeric value expressed as Long or Mod x 3 format with primary scaling factor a Long format without scaling or a Time format Each Display has a corresponding Register Description see Reg Desc below that contains among other things a Format Type field that explains how to interpret that Display s data LP Record The Load Profile Record contains the Load Profile data for a single interval This format consists of a time stamp in the Time format described here followed by 1 to 12 pulse channels depending on the meter s configuration Each pulse channel is three MODBUS registers in the format R1 R2 104R3 The first register is a pulse count the second register is a pulse weight in for example Watth
192. r and subsequent slave meters as shown in the diagram below EE TELEPHONE LINE dL TIP RING lt lt 4000 Ft Max p JEMWARE MASTER CONNECT UP TO 32 DEVICES JEMREAD 5 Se mm _ 7 TYPICAL COMMREPEATER DIAGRAM The interface to the master meter must be through phone line that is connected to the internal JEMStar modem Note that the slave meters those without an internal modem in the network cannot cause the modem to originate call The daisy chained slaves are connected in standard RS485 configuration These signals are connected via the I O cable S and A base or rear mounted terminal blocks switchboard case See the previous section titled RS 485 Connections for wiring details The JEMStar CommRepeater utilizes a half duplex communications link 52 Chapter 2 Installation RS485 Operating Mode The RS485 protocol permits up to 32 transceiver pairs to share a party line Because RS485 communications are differential much longer cable lengths are possible than RS 232C The total length of the network wiring must not exceed 4000 feet A single twisted pair of wires can connect up to 32 drivers and receivers for
193. records Record Display Register and Load Profile Channel Descriptions 12000 Normal Display List Register Map Index 50 entries Reg 15 ea 12749 Desc 13000 Alternate Display List Register Map Index 50 entries Reg 15 ea 13749 Desc 14000 Internal Display List Register Map Index 50 entries Reg 15 ea 14749 Desc 15000 Load Profile Channel Map Index 12 entries Reg 15 ea 15179 Desc Scaling Factors Note These MODBUS registers are scaling factors expressed as powers of ten that when multiplied by the appropriate power or energy registers give readings in primary kilo units e g kilowatts kilowatthours MODBUS Register s Measurement Type 1061 1079 1088 1106 1115 1211 1225 1250 1264 1271 Watt Watthour VA VAhour 1070 1097 1124 1218 1232 1257 1272 VAR VARhour Q Qhour 1239 Amp Amp Amphour Amp hour 1243 Volt Volt hour Special Data Formats These Registers have special or unusual formatting e Pulse Input I MODBUS register 1400 Reads 0 if JEMStar Contact Input 1 is off 1 if on e Pulse Input 2 MODBUS register 1401 Reads 0 if JEMStar Contact Input 2 is off I if on e Meter ID MODBUS register 1700 and unique identification number assigned by Square D JEMStar returns 15220 e Register Firmware Version MODBUS registers 1705 1701 Three MODBUS registers each containing 2 digits of the JEMStar Register Firmware version number Display each
194. red the MODBUS logic automatically interprets it as the start of anew message and discards any portion of the previous message Similarly if a timeout were to occur any portion of the previous message would be discarded and the logic would wait for the next colon character which essentially accomplishes the same purpose E 5 JEMStar User Manual However since the Carriage Return Line Feed pair is optional at the end of query message I second timer is automatically started at the end of the CRC to allow for these optional characters If the Carriage Return Line Feed pair is not received at the end of this 1 second timeout the logic proceeds with processing the message Register Presets In the JEMStar Modbus implementation meter registers Normal and Alternate may be cleared or set to a given value with the Preset Multiple Registers command Function Code 15 Note that the start register specified in the command must be the Hi order register number of the appropriate register pair In addition Allow Register Presets must be specifically enabled in the meter with JEMWare Use menu Meter Settings Protocols Modbus If not enabled Modbus exception 01 illegal function will be returned if register presets are attempted Digital Output Control The JEMStar digital outputs may be forced to a high or low state via MODBUS using either the Force Single coil or Force Multiple Coils command To use this feature Allow D
195. register 1722 The JEMStar s demand interval length in minutes e Demand Subinterval MODBUS register 1723 The JEMStar s demand subinterval length in minutes e Number of Normal Display Registers MODBUS register 1724 The number of display registers max 50 currently configured in the Normal display list e Number of Alternate Display Registers MODBUS register 1725 The number of display registers max 50 currently configured in the Alternate display list e Number of Internal Display Registers MODBUS register 1726 The number of display registers max 50 currently configured in the Internal display list e Number of Load Profile Channels MODBUS register 1727 The number of Load Profile pulse channels max 12 currently configured in the meter MODBUS Register Formats These extended MODBUS holding registers come in a variety of formats These formats are described here Int The Int type is a signed 16 bit integer number It is the basic MODBUS register Long The Long is two MODBUS registers sent consecutively to form a 32 bit value The first register contains the sign bit and the 15 most significant bits of the value The second register contains the remaining 16 least significant bits Time The Time format is three MODBUS registers sent consecutively to form a date time group encoded thus Upper 8 bits Lower 8 bits First register Month 1 12 Day 1 31 Second register Year 0 199 Hour 0 23 Third registe
196. register s contents as a 2 digit hexadecimal number and separate the registers with periods E g B3 00 12 e Health Status MODBUS register 1709 A series of bits giving the present health status of the JEMStar MSB gt 16 15 14 13 12 11 1098 765 43 2 1 lt LSB E 21 JEMStar User Manual E 22 Bit Meaning 16 I Battery Warning Cumulative time on battery exceeds 2 years 15 I Configuration error using default configuration 14 I Site Monitor alarm condition is present 13 I External status input is ON 12 1 Threshold I alarm condition is present 11 1 Threshold 2 alarm condition is present 10 1 Threshold 3 alarm condition is present 9 1 Threshold 4 alarm condition is present 8 1 reserved T I reserved 6 I reserved 5 I reserved 4 I reserved 3 1 Phase voltage active 2 1 Phase voltage active 1 1 Phase voltage active VT Ratio MODBUS registers 1710 1711 The meter s configured external Voltage Transformer ratio multiplied by 1000 CT Ratio MODBUS registers 1712 1713 The meter s configured external Current Transformer ratio multiplied by 1000 W VA Wh VAh Primary Unit of Measure MODBUS register 1714 A power of ten showing the configured Unit of Measure for Real and Apparent power and energy measurements 0 units watts VA 3 kilo units 6 mega units 9 giga units VAR Q VARh Qh Primary Unit of Measure MODBUS register 1715 A power of te
197. remote serial configuration e Voltage Sag Swell The 100 most recent voltage sags or swells detected by the meter are logged Each event records the minimum maximum and average voltage and current and the average power factor for the duration of the event Note that some events such a power outages and freezes are reported in the JEMRead Load Profile download Chapter 1 General Information MODEL NUMBER DESCRIPTION This user manual is applicable to broad range of JEMStar meter options To determine the options on your meter read the model number located in the center front of the meter faceplate and compare it to the following guide JEMStar Model Number Meter Enclosure Frequency Display Current Communication Options I O Options Form 05 Form 5 A A Base 5 50Hz 0 Std LCD 02 Class 2 0 None 0 None 06 Form 6 R Switchboard 6 60 Hz 1 Backlit 10 Class 10 1 RS 232 1 DI DO 08 Form 8 S Socket LCD Option 20 Class 20 2 RS 485 2 0 1 mA 09 Form 9 J2 JEM2 3 Modem 3 0 1 mA DI DO Retrofit 4 Modem RS 232 4 4 20 mA Q Quantum 5 Modem RS 485 5 4 20 mA DI DO Retrofit 6 Modem RS 485CR 6 5 KYZ 7 Modem PHPF 8 Modem PHPF RS 232 9 Modem PHPF RS 485 A Modem PHPF RS 485CR B RS 232 485 Dual Comm C Ethernet RS 232 485 Acronym Key DI Digital Contact Inputs DO CR Digital Contact Outputs Communications Repeater PHPF Phone Home on Power Failure KYZ
198. s However DNP is much more than an error detection and correction scheme A DNP compliant device from the protocol s point of view is considered a group of data objects each of which contains one or more points The DNP protocol specification defines the allowable object types and what constitutes a point for that object type DNP is not intended to be a general purpose two way communications link Rather it is highly optimized for SCADA and automation applications involving relatively small amounts of near real time data that is often read by the DNP master every few seconds In the case of the JEMStar it is not used as a means of controlling or reconfiguring the meter JEMStar User Manual DNP v3 00 DE VICE PROFILE The purpose of this document is to describe the specific implementation of the Distributed Network Protocol DNP 3 0 within the JEMStar meter This document in conjunction with the DNP 3 0 Basic 4 Document Set and the DNP Subset Definitions Document provides complete information on how to communicate with the JEMStar meter via the DNP 3 0 protocol JEMStar uses the Triangle MicroWorks M Inc DNP 3 0 Slave Source Code Library Version 2 19 This implementation of DNP 3 0 is fully compliant with DNP 3 0 Subset Definition Level 2 contains many Subset Level 3 features and contains some functionality even beyond Subset Level 3 The following sections in conjunction with the Device Profile Document provide complete i
199. s 10 Input Current Class 20 Input Current Accuracy PF 1 Accuracy PF 0 5 lag polyphase total 0 5 to 10 A 0 5 to 20A 0 25 RD 0 25 RD 0 3 to 0 5 0 3 to 0 5 0 25 RD 0 35 RD 0 1 to 0 3 A 0 1 to 0 3 A 0 35 RD 0 4 RD 0 05 to 0 1 A 0 05 to 0 1 A 0 4 RD Chapter 1 General Information Class 2 Class 2 Input Current Accuracy PF 1 Accuracy PF 0 5 lag Watthours 0 1 2 0 1 RD 0 1 RD per phase 0 05 to 0 1 A 0 1 RD 0 2 RD polyphase total 0 025 to 0 05 A 0 2 RD 0 4 RD 0 01 to 0 025 A 0 3 RD 0 5 RD Varhours per phase polyphase total Class 2 Input Current Accuracy PF 0 Accuracy PF 0 5 lag 0 1to2A 0 2 RD 0 2 RD 0 05 to 0 1 0 2 RD 0 3 RD 0 025 to 0 05 A 0 3 96 RD 0 5 RD 0 01 to 0 025 A 0 4 RD 0 6 RD VAhours Qhours per phase polyphase total Class 2 Input Current Accuracy PF 1 Accuracy PFz0 5 lag 0 1 2 0 2 RD 0 2 RD 0 05 to 0 1 0 2 RD 0 3 RD 0 025 to 0 05 A 0 3 RD 0 5 RD 0 01 to 0 025 A 0 4 RD 0 6 RD Instantaneous Watts phase polyphase total Class 2 Input Current Accuracy PF 1 Accuracy PF 0 5 lag 0 1to2A 0 15 RD 0 15 RD 0 05 to 0 1 A 0 15 RD 0 25 RD 0 025 to 0 05 A 0 25 RD 0 45 RD 0 01 to 0 025 A 0 35 RD 0 55 RD Instantaneous Vars per phase polyphase total
200. s of message fields The MODBUS protocol has two distinct forms mode and ASCI mode mode essentially means binary mode where each byte of information is transmitted as an actual 8 bit binary byte ASCII mode packages each byte in two ASCII coded hexadecimal characters In addition the two modes use different methods to calculate their checksums and message packet boundaries These methods are detailed later in this section Further information concerning MODBUS implementation standards can be found at the following website www modicon com techpubs toc7 html The MODBUS Device Address timeout and communications parameters are configured via the JEMWare software JEMStar will always be a MODBUS slave device E 1 JEMStar User Manual Communications The following MODBUS communications parameters are configurable via JEMWare e ASCII or mode e Baud Rate 1200 9600 19200 38400 e RS 232 full duplex or RS 485 half duplex signal levels Note MODBUS communications are always 8 bit no parity Serial Port Connections MODBUS Point to Point Connection Using RS232 This method is used for connecting the JEMStar MODBUS directly to a MODBUS Master device The transmit and receive data pins on the MODBUS host system may vary between pin 2 and pin 3 according to the type of equipment used In applications where an IBM compatible PC with 9 pin D Type connector is used TXD is pin 3 and RXD is pin 2 MODBUS Ma
201. se C working Instantaneous Amps Phase A working none none assigned none assigned none assigned none assigned none assigned A 3 JEMStar User Manual Contact Input Output Input channel 1 TOU Rate Override Input channel 2 TOU Rate Override Output Channel 1 Energy Output Normally Open 1 8 Wh pulse Output Channel 2 Energy Output Normally Open 1 8 VARh pulse Output Channel 3 Energy Output Normally Open 1 8 VAh pulse Output Channel 4 Energy Output Normally Open 1 8 Qh pulse Output Channel 5 End of Interval S K YZ Option board only Analog Outputs Analog Output 1 Volts Phase A 0 530 V Analog Output 2 Volts Phase B 0 530 V Analog Output 3 Volts Phase C 0 530 V Demands Interval length 15 minutes Subinterval length 15 minutes Deferral intervals subinterval Power Outage Recognition after 8 seconds Interval Sync Internal Thermal Time Characteristic minute Serial Communication Optical 9600 baud JEM2 Binary protocol Address 01 Password timeout 15 min Serial 1 RS232 9600 baud JEM2 Binary protocol Address 05 Password timeout 15 min TX start delay OmS RS 232 80mS RS 485 TX end delay OmS RS 232 20mS RS 485 Serial 2 Modem 9600 baud JEM2 Binary protocol Address 02 Password timeout 15 min Initialization String ATH A 4 Appendix A Default Configuration Modem answer schedule Frequency daily Start time 0030 End time 0100 Answer after 1 ring in window A
202. se Connections J4 RS485 RS232 Pin Number Signal Signal 1 RTS 2 Xmt Rev Tx 3 Xmt Rcv Rx 4 Comm Gnd J4 Front View 1234 For Switchboard style meters channel 2 connections are provided on rear terminal blocks Note RTS is not available on channel 2 of the Switchboard model Channel 2 Switchboard Connections Rear RS485 RS232 Terminals Signal Signal 1 Xmt Rcv 2 Xmt Rcv Rx 23 Comm Gnd 57 JEMStar User Manual Ethernet Serial Port JEMStar can be optionally equipped with an ethernet port and a single serial port configurable for RS 232 or RS 485 communications The serial port can be configured for 300 1200 2400 9600 19 2K or 38 4K bps communications Refer to above for additional details on the single serial port and RS 232 485 capabilities The ethernet port works independently of the serial port so it can be used at any time The ethernet port is configurable via JEMWARE for any IP address or it can obtain an IP address automatically using DHCP The Ethernet port supports all JEMStar protocols Modbus DNP ANSI Tables Binary Up to four simultaneous connections are possible permitting each user to access whatever metering information is necessary Up to four passwords can be configured in the meter to restrict or allow certain functions per user For example one user can be granted access to display registers while a second user has access to load profile dat
203. seconds Average of 1 5 seconds W Del W Rec W Bidirectional VAR Del VAR Rec VAR QI VAR Q2 VAR Q3 VAR Q4 VAR Bidirectional VA Del VA Rec VA Bidirectional Volts Amps Q Del Q Rec Q Bidirectional PF Del PF Rec PF Bidirectional V Volts THD Amps THD Frequency Updated no less than every 2 seconds Configurable to be associated with any Time of Use TOU Rate If associated with any rate other than Total the Consumption Register shall accumulate only energy measured while that rate is active Wh Del Wh Rec VARh Del VARh Rec VAh Del VAh Rec VARh per quadrant Ah Qh Del Qh Rec A h In secondary at meter terminals or primary at PT CT input units Any desired value that may be displayed By serial communications Special purpose Consumption registers Displayed quantities scaling preset and register retrieval are identical to Consumption registers May be configured to add additional accumulation in response to energy pulses received on the JEMStar s Contact Input channels See the JEMWare User Manual document 1083 602 for details on setting up Totalization registers 15 JEMStar User Manual Average Power Factor Registers Characteristics Display Calculation Configurable to be associated with any Time of Use TOU Rate If associated with any rate other than Total the Average PF Register is based only on energy accumulated while that rate is active Average Power
204. ssembled to any level all exposed or removed electronic modules must be considered vulnerable to static damage and handled accordingly There is no truly safe level of exposure to electrostatic discharge However the presence of a static charge or static field is not in itself damaging to electronic components Subassemblies from dismantled product should not be considered static protected by design In fact depending on the design and conductive mass of the connected circuitry components in subassemblies may be more vulnerable to static damage than loose components of the same type Therefore the objectives of static control cannot be met by indiscriminate handling of subassemblies or loose components C 1 JEMStar User Manual Handling printed circuit board assembly by its edges without employing static protection does not preclude the risk of static damage to its components Effective static control methods cannot be executed without proper tools and equipment All static control methods relate to one simple principle provide alternate intentional paths for grounding electrostatic charges away from or around the devices to be protected Static control is the employment of tools and equipment to predetermine the flow path of this current Any two physical bodies conductive or nonconductive can be the source of an electrostatic discharge if either is charged to a different level of electrostatic potential As these two physical b
205. ster Direction JEMStar I O cable DTE RXD or DCE TXD 4 BLUE GREEN DTE TXD or DCE RXD gt BLUE RED Comm GND PURPLE WHITE MODBUS Multidrop Connection Using RS485 differential MODBUS Master Direction JEMStar cable XMT RCV BLUE RED XMT RCV BLUE GREEN Notes e JEMStar does not implement hardware handshaking signals with RS 232 or RS 485 serial data e The MODBUS port is connected via a pigtail I O cable for S base and A Base meters wire colors shown above See the section labeled Serial Communications for wiring details of Switchboard meters terminal block connections Refer to the section Dual Communications Option for connections if your meter has this feature Data Transfers using MODBUS RTU or ASCII The JEMStar MODBUS implementation will fully support all data transfers with the following commands Read Output Status Function code 01 Read Input Status Function code 02 Read Holding Registers Function code 03 Read Input Registers Function code 04 Force Single Coil Function code 05 Force Multiple Coils Function code 15 Preset Multiple Registers Function code 16 E 2 Appendix E MODBUS Communications As implied by the Read Holding Registers command all JEMStar available data will be stored in 16 bit Holding Registers However these registers will either hold the High Order or Low Order 16 bits word of 32 bit quantity Whenever 32 bit quantity is accessed the registers containi
206. t Saving Time Change these are recorded in the same list They include the time before the change the time after the change and an indication of whether it was a manual front panel or serial data or automatic Daylight Saving Time change The five most recent time changes are recorded e Register Freeze Each Freeze includes the time the Freeze was performed as well as an indication of whether the Freeze was manual serial command or automatic The five most recent Freezes are recorded e Register Preset The most recent Register Preset is recorded with the time at which the Preset occurred e Test Mode The most recent Test Mode session is recorded with the time at which the Test Mode session was entered and left e Calibration The most recent Calibration session is recorded with the time at which the Calibration occurred e Site Monitoring The 20 most recent Site Monitoring events are recorded Each one includes the time at which the condition was detected as well as an indication of the detected condition e Billing Period Reset The five most recent Billing Period Reset events are recorded Each one includes the time at which the reset was performed and an indication of whether the reset was automatic a serial command or a front panel reset e Configuration The 3 most recent Configuration events are recorded Each one includes the time at which the configuration occurred as well as an indication of whether it was a front panel or
207. t will only gate the collection of measurements in configured Load Profile channels e Load Profile channels configured to record only during TOU Rate Override are not associated with a given TOU rate For example If the meter is configured to use Rate C as the TOU Override rate and Rate C also appears in the normal TOU schedule the selected Load Profile channels record only while the TOU Rate Override input is on e Average Instantaneous Load Profile channels that are configured for TOU Rate Override are averaged over the period that the TOU Rate Override input is on For example with a constant 1000 watts applied to the meter and an Average Instantaneous Watt load profile 103 JEMStar User Manual channel if the TOU Rate Override input is active for one half of an interval the final value recorded in that interval will be 1000 watts not 500 watts If the TOU Rate Override input stays off for the entire interval the channel will record 0 An exception to this is Average Power Factor which resets to 1 0 at the beginning of an interval and will remain there unless some actual measurements are collected Typical Load Profile Printout Load Profile Data Display No Event Type Date Time 1 2 3 4 851 Data 11 20 00 13 15 00 0 0 0 0 852 Data 11 20 00 13 20 00 0 0 0 0 853 Data 11 20 00 13 25 00 20 0 25 0 854 Test Mode 11 20 00 13 2
208. termination jumper s J1 J7 must be in the unterminated state RS485 Termination Jumper J1 on the Dual Comm board RS485 Termination Jumper J7 on the Dual Comm board Shown in terminated position upper two pins shorted u 7 L The 4195 263 jumpers are standard 0 1 center two pin female shorting connectors commonly used on most PC motherboards Contact Ametek Power Instruments or ask your local computer shop for replacements 56 Chapter 2 Installation Dual Comm Serial Data Output Connections The serial data RS232 or RS485 is wired out using J3 for channel 1 and J4 used for channel 2 For the S Base and A Base meter styles Dual Comm channel 1 serial output connections are provided via the multi conductor cable The wire colors are as follows Channel 1 S Base A base Connections Wire Color RS485 Signal RS232 Signal Wht Grn Blu Xmt Rcv Tx Wht Red Blu Xmt Rev Rx Wht Pur Comm Gnd Wht Red Org RTS For Switchboard style meters channel connections are provided on rear terminal blocks Channel 1 Switchboard Connections Rear RS485 RS232 Terminals Signal Signal 21 Xmt Rcv Tx 22 Xmt Rcv Rx 23 Comm Gnd 24 RTS For the S base and A base meter styles Dual Comm channel 2 serial output connections are brought out J4 A standard four wire telephone cable is provided with an RJ 11 jack Channel 2 S base A ba
209. then be interfaced to a Watt standard s such as Scientific Columbus MicroJoule II external gate input The JEMStar is tested like any other electronic meter It should be set up so the test standard sees the same voltage and current as the meter This is done by connecting the JEMStar voltage elements in parallel and the current elements in series Refer to the following example that shows how to connect a JEMStar and a Watt Standard to an external load source 81 82 JEMStar User Manual MicroJoule Standard Model 5282 ET E Optical Port ES METER RANGE Adapter VNH ES Multifunction Standard sowie _ MICROJOULE 1 STDA INSTRUCTIONS gt sTDB JEMSTAR CABLES lt gt DISPLAY AMPERES RESISTORS gt Snc gt gt 6 EXT GATE CONTROL RELAY Load Simulator POWER 65036 003A TYPICAL CONNECTION DIAGRAM FOR JEMSTAR and MICROJOULE II TO AN EXTERNAL LOAD SOURCE The model number serial number firmware version and calibration date are stored in nonvolatile memory and cannot be changed Chapter 4 Test amp Calibration Test Mode During Test Mode the following conditions exist 1 Normal and Alternate registers stop accumulating Peak Coincident and Time Date of Peak registers may continue to update but they behave as if there is zero po
210. thods of interfacing with JEMStar Optical port Serial data RS 232 485 modem and ethernet The display menu allows reading and editing of basic communications port parameters such as Type For Serial 1 and Serial 2 select whether communications are via RS232 RS485 or Modem Port address Entered as hexadecimal number Port baud rate Use the arrow buttons to scroll through the available choices Comm protocol Use the arrow buttons to select either Binary DNP Modbus RTU or ASCID or ANSI Tables Go to menu Settings Optical or Serial 1 or Serial 2 then choose one of the above parameters to read or edit Note When equipped with the Ethernet Serial option it will always indicate RS 232 regardless of how the hardware is configured Refer to the manual section on Communication Ports for details on how the Ethernet board is jumpered for RS 232 or RS 485 Preset Meter Registers Register Preset enables the user to set meter registers at a TORIS predetermined value This option is often used when xm 120 271 meters are replaced allowing the user to set the new meter with the previous meter s register settings AE 5 Fl H Bl Pn Most quantity registers can be preset This function can be nnfiqure Fec Dni performed directly from the front panel of the meter or with the JEMWare configuration software Since this may affect the correlation between Register and Load Profile readings t
211. tic control practices Refer to Appendix C for more information 87 JEMStar User Manual JEMSTAR SERVICING JEMStar meters are available in socket base S and A base and switchboard mounting packages The disassembly procedure for each type is described as follows Socket base meters S and A base Globe Removal 1 Remove power from meter Remove all wire seals from the locking ring of the meter globe and then remove the ring You do NOT need to remove any seals from the RESET button 3 Turn the globe counter clockwise approximately inch to disengage it from the base 4 Carefully slide the globe forward away from the base and set it aside Internal Housing Disassembly 1 Remove the top cover of the housing by unscrewing three Phillips head screws below Carefully lift the cover off paying particular attention to the RAM battery wires Do not unplug the battery or data will be lost Top View of meter with globe removed Remove screws at these locations then lift the top cover off Be careful of the battery wires 88 Chapter 5 Maintenance Register Metrology board behind front plate board Serial Communication board Modem battery pack Ribbon Cable Battery for RAM 3 LCD gr Display gt I O Cable 3 Ft Optical Port Reset Seal Power Supply JEMStar S Base Exploded view Internal Case removed 89 JEMStar User Manual
212. time and which may be accumulated Integrated quantities are used for developing Consumption Fixed or Sliding Window Demand Peak or Coincident Load Profile or pulse outputs Interval A period over which a demand is calculated consisting of one or more subintervals IRLED Infrared light emitting diode such as the optical port on the JEMStar meter KYZ A meter output that indicates energy by toggling a Form C contact output at a frequency proportional to power flow Each transition represents some constant amount of energy typically referred to as Ke energy constant that has been consumed JEMStar mimics this function by allowing the user to configure two solid state contact outputs into a similar arrangement Leading Zero es The main section of the meter s LCD readout can be configured with JEMWare to fill in unused display digits with either blanks or zeros Leading Zeroes inserts 0 digits to the left of the most significant digit until all display positions are filled there can be 6 or 8 digit positions depending upon user configuration LLC Line Loss Compensation the ability of an instrument to measure or calculate the power lost in an imperfect conductor and to use that figure to modify its power or energy readings Liquid Crystal Display LCD Display area on the meter face that contains alpha numeric characters for data readout Load Linearity Specifies the maximum deviation of performance in percent
213. time of the last register freeze In JEMStar all static data is permanently assigned to Class 0 A JEMStar register configured as a DNP Counter point may contain a value as large as 999 999 999 nine digits Some DNP master devices cannot accept counter values this large You may configure JEMStar to restrict the reported value of counter points to 3 4 5 6 7 or 8 digits or allow the full 9 digit precision to be reported Restricting the number of digits reported affects only DNP counter points not the actual display registers JEMStar s default configuration is to have these Counter Points assigned Counter Name Description Point Index Internal system Watthrs delivered x selected scale Internal system Watthrs received x selected scale Internal system VARhrs delivered x selected scale Internal system VARhrs received x selected scale Internal system VAhours delivered x selected scale Internal system VAhours received x selected scale Internal system Qhrs delivered x selected scale Internal system Qhrs received x selected scale Internal system Amphrs x selected scale Internal system V2h x selected scale Internal system A2H x selected scale oJI NISJA AJ vN gt JEMStar User Manual Analog Inputs Analog Inputs are implemented as 32 bit analog input without flag object 30 Var 5 points or 16 bit analog input without flag object 3
214. tinue to update but they behave as if there is zero power applied to the meter 2 Load Profile stops accumulating and storing interval records Any partial interval counts accumulated before entering Test Mode will be retained and will be stored with a Test Mode event record when Test Mode ends 3 Test Registers accumulate power and behave as expected for the type of register E g Time of Use registers respond only during the correct rate period Demand registers update on normal demand interval timing etc 4 The Optical Port emits Test Pulses Analog Outputs continue to operate as before 6 Energy K YZ pulses continue to operate as before d Refer to Chapter 4 Test amp Calibration for a complete explanation of Test Mode operation 70 Chapter 4 Test amp Calibration Note If the meter has been configured with a Test Timeout via JEMWare the display will automatically revert to normal operation after the designated length of time without user interaction The factory default setting is 30 minutes Display Format and Auto Ranging Because of the nature of register values some register types are formatted differently than others The user has the capability to configure the number of digits to be displayed and the number of digits to the right of the decimal point However in order to create the most flexibility non accumulating registers are displayed in an Auto Range style where the value including decim
215. tions oerte e eee eer e eee rete ei eia 4 5 Passwords Permissions t tee cte te te eiu n e er e ette eee ie e ots 5 A EE AE A E E A E A AEEA 5 Internal Modem Initialization Commands 6 Appendix ACCeSSOrIeS sesssesssesssesesesesesosososesosssossseosssossoossooesoossososesosssossososssosssossssesssosssosssoss 1 Appendix C Electrostatic Discharge 4 eee cete ee ee eee eee e eere etes eset ea sete ta se 1 Electrostatic Discharge 1 nnn 1 Appendix D DNP Serial Communications sccsscccssccssssscscscsssssssscscssscssssssssessscssssssesoeee 1 a s 1 DNP v3 00 Device Profile enne e enne 2 The JEMStar Implementation sessen aaa E EE E EE EEs 4 IMPLEMENTATION TABLE cccccccsssccesseccsssccesseccessecesseeeesseccessecesseseesseeeesseeeeneees 4 Binary Input 5 E OIM IU UE 8 Analog 10 EVENTS 126 EE E QU D S NU S E 16 16 Configuration eee eee e eb err Pr dr Hera de 16 Appendix MODBUS Communications eee ecce eee ee eene een
216. tment affects both functions 2 Press the Set key 3 The field above the menu lists will show a number like this 0 00 4 The sign will be highlighted Toggle between and by pressing the Up or Down Arrow keys 5 Select other digits to modify by pressing the Left and Right Arrow keys Each highlighted digit may be incremented by pressing the Up Arrow key or decremented by pressing the Down Arrow key The user may enter a percentage correction for VAR VARhour registration between 9 99 and 9 99 6 When the desired amount of correction is displayed press the SET key to accept it Press READ if you want to cancel 7 The gain correction entered applies to both VARs and VARhours on all phases delivered and received even though the register displayed may have been a single phase register 8 VAR VARhour gain corrections entered in this way will remain in effect after Test Mode ends Note Adjusting VAR VARhour gain will affect VA VAhour Q Qhour and PF To use the Optical Test Pulse The Optical Test Pulse is an energy pulse output similar to a KYZ pulse that repeats at a rate proportional to energy consumption Each pulse is a brief approximately 30 to 40 millisecond burst of infrared light sent by the Optical Port transmitter Measurements that may be selected for output as a Test Pulse are e Watthours VARhours Vahours Qhours Amphours Any direction Delivered Received per quadrant and
217. tons you can scroll through the first column choices Note that the second column will adjust to the function selected in the first column Use the right arrow button to move the cursor to the second column The third column choices are now visible In this manner you can scroll up down left or right to place the cursor on the specific function you want to view or edit Familiarize yourself with this operation before proceeding Press the READ button any time you want to return to the normal display Once you have selected the correct menu feature the value will be displayed in the upper section Press SET to edit the value Note Some functions can be edited some cannot If it is changeable a highlighted cursor will appear in the upper right section digit 4 is highlighted for change To increment the highlighted digit press the button to decrement press the button You may press the READ button at any time to cancel the operation without making any changes To select the next digit press the right arrow button Continue selecting and incrementing decrementing digits until the desired setting has been configured When the last digit has been changed press the SET button The meter accepts the change and automatically returns to the lower menu section Use the left arrow to back through the menus and return to the normal display or press the READ button to escape Note If the meter is left in the Menu Mode without user i
218. ts A swell 111 JEMStar User Manual e Volts swell e Volts C swell Events longer than 600 cycles Volts A long sag Volts B long sag Volts C long sag Volts A long swell Volts B long swell Volts C long swell End of long events Volts A long sag end Volts B long sag end Volts C long sag end Volts A long swell end Volts B long swell end Volts C long swell end 112 Chapter 6 Advanced Features TOTALIZATION The JEM Star meter may be purchased with an optional Totalization system Totalization is ability to sum the energy readings from several different instruments and display the result JEMStar has 12 totalization channels Each channel may be displayed as a register in the Normal Alternate or Test lists and or recorded as a Load Profile channel Each Totalization channel behaves as Consumption register with several added features Details on how to configure Totalization channels are contained in the JEMWare User Manual document 1083 602 For each channel the user must configure the following e Measurement quantity choice of Watthours VARhours VAhours Qhours Amphours Volt Squared hours Amp Squared hours or Zero which accumulates only external energy Phase A B C or Polyphase Direction Delivered Received or a single quadrant for VARhours Time of Use Rate A through or Total Compensated or Uncompensated Test Mode Enabled Load Profile Km in Primary i e at VT and CT input
219. tures of the JEMStar meter are forced to be re initialized when portions of the meter s configuration are changed This section summarizes the changes that will force a re initialization Note that when a new configuration is loaded into a meter the meter determines individually if each section has changed from the currently stored configuration These features are re initialized ONLY if the particular configuration sections are different Re initialization means that the data in that particular register is set to zero Display Registers The Display Registers feature includes the following parts of the JEMStar e Registers in the Normal display list Registers in the Alternate display list Registers in the Test display list Self Read registers Register Thresholds Site Monitor alarms e Totalization registers The following configuration sections if modified will cause the Display Registers feature to be re initialized erasing all previous data e Normal display list Alternate display list Test display list Demand settings Self Read settings Primary Scaling settings including changing VT Ratio or CT Ratio from the meter front panel e Register Threshold settings e Demand Load Profile Interval Timing settings e Totalization channel setup Load Profile The Load Profile features which does not include individual Event Logs will be erased and re initialized if these configuration sections are modified e Demand Load Profile Interval Timing
220. ured for Service Class 1 AT FAE n Data Fax Auto Answer 0 Answer as fax modem only 1 Either a fax or data modem AT FF Enhanced Flow Control AT FRH lt mod gt Receive HDLC Data 3 V 21 Channel 2 300 bps 24 V 27ter 2400 bps 48 V 27ter 4800 bps 72 V 29 7200 bps 96 V 29 9600 bps 97 V 17 9600 bps 98 V 17 short train 9600 bps 121 V 17 12 000 bps 122 V 17 short train 12 000 bps 145 V 17 14 400 bps 146 V 17 short train 14 400 bps AT FRM lt mod gt Receive Fax see AT FRH for mod values AT FRS lt time gt Receive Silence AT FRTn Receive Test Data AT FTH lt mod gt Transmit HDLC Data see AT FRH for mod values AT FTM lt mod gt Transmit Fax see AT FRH for mod values AT FTS lt time gt Transmit Silence AT FTTn Transmit Test Data A 13 JEMStar User Manual Digits Verbose Description Digits Verbose Description 0 OK Successfully executed 50 CARRIER 9600 9600 bps carrier command line received 1 CONNECT 300 bps connection 51 CARRIER 12000 12 000 bps carrier received 2 RING Ring signal detected 52 CARRIER 14400 14 400 bps carrier 3 NO CARRIER Carrier not received detected lost 53 CARRIER 16800 16 800 bps carrier 4 ERROR Error in command line received 5 CONNECT 54 CARRIER 19200 19 200 bps carrier received 6 NO DIAL TONE No dial tone detected 55 CARRIER 21600 21 600 bps carrier 7 BUSY Busy signal detected received 8 NO ANSWER 5 second silence not 56 CARRIER 24000 24 000 bps carrier
221. uring TOU Rate A 2 Rate B Register measures only during TOU Rate B 3 Rate C Register measures only during TOU Rate C 4 Rate D Register measures only during TOU Rate D 5 Rate E Register measures only during TOU Rate E 6 Rate F Register measures only during TOU Rate F 7 Rate Register measures only during TOU Rate 8 Rate H Register measures only during TOU Rate H c is the Compensation flag 0 Value has Transformer Loss Compensation applied if applicable 1 Value is not compensated i is the Integrated Quantity flag 0 Quantity is instantaneous or average i e Demand Instantaneous Thermal etc 1 Quantity is integrated i e Consumption Totalization Demand Quantity Type The Demand Quantity Type register describes the basic quantity being measured by an associated Peak Demand Display Register It uses the same bit assignments as Quantity Type described above It is valid only if the associated Reg Type indicates this is a Coincident Demand Display Register Reg Format The Reg Format register identifies the MODBUS data format used by the associated Display Register or Load Profile channel MSB gt 0000ffffddddcccc lt LSB Where ffff is the Register Format identifier 0 No value Register or Channel contains no displayable information 1 Int Display contains a single MODBUS register remaining 3 registers are not used Display Registers only 2 Long Display contains a Long 2
222. user identity and privileges perform various functions and send and receive data tables Since a single modem may serve multiple meters the Telephone Modem Protocol provides for individual end device addressing on a multidrop connection ANSI Network Protocol C12 22 ANSI C12 22 defines the dynamic processes required to send and receive ANSI Data Tables via a network connection C12 22 is not an approved standard but is mentioned here for future reference At this time there is no JEMStar implementation specifically related to C12 22 F 2 Appendix F ANSI Tables Communication ANSI TABLES IMPLEMENTATION IN JEMSTAR ANSI Tables protocol is available on all JEMStar serial communication interfaces standard or optional You can configure serial interface either via JEM Ware configuration software or though the meter front panel menu system ANSI Tables protocol can be operated on one more of the meter s serial interfaces Using ANSI Tables on one serial port does not interfere with the use of ANSI Tables or different protocol on any other port Optical Port If JEMStar is configured for ANSI Tables on the Optical port it will automatically use the C12 18 Optical Port protocol For connecting an Optical Adapter to the meter refer to the section titled Communication Ports in Chapter 2 of this manual Modem Port If JEMStar is configured for ANSI Tables on the Modem port it will automatically use the C12 21 T
223. utput usage The fifth contact output can be use for any function except Threshold Alarms The differences between the two option boards are described below Feature DI DO Board 5 KYZ Board Number of Contact Outputs 4 5 Type of Contact Outputs Form A N O Form C N O N C Analog Outputs Available Yes No 1 The Form A contacts on the DI DO Board can also be programmed for Normally Closed operation using JEMWare software 2 Because all the output wires terminals are used by contact outputs the analog output option is not available in conjunction with the 5 KYZ board Refer to JEMWare instruction manual 1083 602 for information about assigning the operating functions of the contacts The following table defines the Input Output connections for the 5 KYZ board Function S BASE A BASE R BASE Wire Color Terminal Block Dinl WHT BRN 19 Dinl WHT BRN BLK 20 Din2 Rx WHT BLU BLK 17 Din2 Rx WHT BLU 18 KI WHT RED BRN 8 Y1 WHT BLK 4 Z1 WHT ORG GRN 5 K2 WHT GRY 3 Y2 WHT ORG BRN 6 Z2 WHT RED GRN 7 K3 WHT RED 10 Y3 WHT ORG 13 Z3 WHT ORG BLK 14 K4 WHT GRN 12 YA WHT GRN BLK 11 ZA WHT RED BLK 9 K5 Rx WHT YEL BLK 16 YS Rx WHT YEL 15 Z5 WHT GRN BRN NOTE If the Ethernet option is installed terminals 17 and 18 can be configured for either Din2 or Ethernet RX or terminals 15 and 16 can b
224. w ratio that you entered NOTE 1 Changing the meter s VT or CT Ratio will cause Load Profile pulse constants Energy Pulse constants Site Monitor thresholds and Analog Output levels to be re scaled automatically so that they will maintain the same settings in Primary units It will also cause all numeric registers to be erased and re initialized NOTE 2 Changing the meter s VT or CT Ratio from the front panel will invalidate any Loss Compensation settings that may already be configured If you use the Loss Compensation feature enter the VT and CT Ratios via JEMWare configuration software to maintain your TLC settings Service ID Revision You can read the following information about how the meter is configured by going to the menu Settings Identity Service or Program ID or Firmware Rev Type of Service Available types are 4 Wire Wye 4 Wire Delta 3 Wire Delta Network Open Delta 3 Wire Wye Program ID This is the meter identification that will appear in the register list Firmware Rev This is the version number of the firmware installed in the meter Demand Intervals You can read the Demand Interval and Subinterval lengths in hours and minutes by going to menu Settings Demand Interval or Subinterval These settings can only be edited by using JEMWare software 73 JEMStar User Manual Date Time JEMStar uses real time clock capable of maintaining time and date with very high resolution With the on board
225. wer applied to the meter 25 Load Profile stops accumulating and storing interval records Any partial interval counts accumulated before entering Test Mode will be retained and will be stored with a Test Mode event record when Test Mode ends 3 Test Registers accumulate power and behave as expected for the type of register E g Time of Use registers respond only during the correct rate period Demand registers update on normal demand interval timing etc 4 The Optical Port emits Test Pulses 5 Analog Outputs continue to operate as before 6 Energy output pulses continue to operate as before Test Mode ends on any of these conditions 1 The user manually leaves Test Mode 2 The meter detects a period of inactivity and exits Test Mode automatically Test Mode timeout 3 The meter loses power When Test Mode ends the following occurs 1 Normal and Alternate registers resume normal operation accumulating power that is applied to the meter Demand and TOU scheduling is unaffected 2 Load Profile records a Test Mode event with partial interval counts from the interval before Test Mode began then resumes normal operation 3 The Optical Test Pulse stops 4 Loss Compensation is re enabled if it had been disabled while in Test Mode Enter Test Mode To enter Test Mode perform the following steps 1 Press any Arrow key to enter Menu Mode A set of three list columns and a smaller numeric field will appear 2 Press the Dow
226. which is based on actual measurements not expected measurements is 1000 watts JEMStar updates its internal Demand Prediction approximately every 50 milliseconds Displayed Demand Predictions respond more slowly due to system and display timing constraints Each update is based on the average of actual instantaneous readings taken in the current demand interval multiplied by the demand interval time that has already passed plus the most recent instantaneous reading multiplied by the time remaining in the demand interval The result of this process is that a Demand Prediction register displays what will be the Demand at the end of the interval if the load remains constant at its present value until then If the load does vary the Demand Prediction register will reflect the new prediction and update the display within a second Demand Predictions may be used to monitor a load in order to prevent setting a new Peak Demand If a Demand Prediction register shows a value that is higher than the existing Peak Demand then a new Peak will occur at the end of the demand interval unless the load is reduced In the case of a sliding window also known as rolling demand predictions are made in the last subinterval of the demand interval In other words JEMStar will not try to predict the demand beyond the present subinterval Demand Prediction Algorithm The calculation is performed at a rate of once every three power line cycles about 50 ms Avg x Sec
227. y 2 00 and Phase C Volts by 4 00 the change to polyphase watts is 1 2 4 3 2 333 108 Chapter 6 Advanced Features VOLTAGE SAG SWELL DETECTION AND LOG The JEM Star meter may be purchased with an optional Voltage Sag and Swell detection and logging system The Sag Swell detector compares the RMS voltage of each cycle on each meter voltage input against user configured upper and lower limits Whenever a voltage crosses one of these limits an event is detected If the event lasts longer than the user specified minimum duration it is recorded in the Sag Swell Event Log The user must configure the following settings for the Sag Swell Detector e Lower voltage sag limit for each phase voltage B and C Voltages below this limit are detected as a sag event e Upper voltage swell limit for each phase voltage A B and Voltages above this limit are detected as a swell event e Minimum duration of event in cycles to log Events shorter than this duration are not logged A single duration limit is applied to all phases for both sag and swell events e Enhanced resolution mode This mode allows the ability to measure swell voltages and currents significantly higher than those normally encountered in the circuit at the expense of accurate power measurement at light loads On 2 and 2 element meters the phase voltage is ignored In normal operation the JEMStar adjusts its voltage and current input gain c
228. y return to its configured state To adjust the Watt Watthour gain of the meter 1 59 7 8 Select a Watt or Watthour Test register NOTE Either one will take the user to the combined Watt Watthour gain adjustment The adjustment affects both functions Press the Set key The field above the menu lists will show a number like this 0 00 The sign will be highlighted Toggle between and by pressing the Up or Down Arrow keys Select other digits to modify by pressing the Left and Right Arrow keys Each highlighted digit may be incremented by pressing the Up Arrow key or decremented by pressing the Down Arrow key The user may enter a percentage correction for Watt Watthour registration between 9 99 and 9 99 When the desired amount of correction is displayed press the SET key to accept it Press READ if you want to cancel The gain correction entered applies to both Watts and Watthours on all phases delivered and received even though the register displayed may have been a single phase register Watt Watthour gain corrections entered in this way will remain in effect after Test Mode ends Note Adjusting Watt Watthour gain will affect VA VAhour Qhour and 84 Chapter 4 Test amp Calibration To adjust the VAR gain of the meter 1 Select a VAR or VARhour Test register NOTE Either one will take the user to the combined VAR VARhour gain adjustment The adjus
229. your company s wiring procedures Signal Inputs Voltage Inputs The meter will operate continuously at any voltage within the nominal range of 55 530 volts while still meeting all operational specifications The JEMStar voltage inputs have a burden of less than 0 5 VA each This does not include the Auxiliary Power input which requires less than 15 VA 38 Chapter 2 Installation Current inputs The JEMStar is configured at manufacture for one of the standard current Class ranges listed in the Specifications section Each JEMStar current input can withstand a continuous overload of 1 5 times the Class current or 20 times the Class current for 0 5 second without damage or permanent change in registration The JEMStar current inputs have a burden of less than 0 5 VA each Auxiliary Power For S Base and A base models Auxiliary Power is connected internally to the Phase A voltage input No separate connection is required The Switchboard models are designed to obtain Auxiliary Power from a separate connection This can be either AC or DC voltage e Separate AC Auxiliary Power AC Auxiliary Power connections are connected to screw terminals on the rear of the case Refer to the Switchboard wiring diagrams shown just prior to this section In this method the Aux Power input will operate from 55 to 530 VAC and is non polarity sensitive e Separate DC Auxiliary Power DC Auxiliary Power connections use the same terminals as the A

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