Dent Power Meter
Contents
1. Decimal Hex Decimal Hex Decimal Hex Decimal Hex Decimal Hex Decimal Hex 1 44 2C 87 57 130 82 173 AD 216 D8 2 02 45 2D 88 58 131 83 174 AE 217 D9 3 03 46 2E 89 59 132 84 175 AF 218 DA 4 04 47 2F 90 5A 133 85 176 BO 219 DB 5 05 48 30 91 5B 134 86 177 B1 220 DC 6 06 49 31 92 5C 135 87 178 B2 221 DD 7 07 50 32 93 5D 136 88 179 B3 222 DE 8 08 51 33 94 5E 137 89 180 B4 223 DF 9 09 52 34 95 5F 138 8A 181 B5 224 EO 10 53 35 96 60 139 8B 182 B6 225 E1 11 OB 54 36 97 61 140 8C 183 B7 226 E2 12 OC 55 37 98 62 141 8D 184 B8 227 E3 13 OD 56 38 99 63 142 8E 185 B9 228 E4 14 OE 57 39 100 64 143 8F 186 BA 229 E5 15 OF 58 3A 101 65 144 90 187 BB 230 E6 16 10 59 3B 102 66 145 91 188 BC 231 E7 17 11 60 3C 103 67 146 92 189 BD 232 E8 18 12 61 3D 104 68 147 93 190 BE 233 E9 19 13 62 3E 105 69 148 94 191 BF 234 EA 20 14 63 3F 106 6A 149 95 192 CO 235 EB 21 15 64 40 107 6B 150 96 193 C1 236 EC 22 16 65 41 108 6C 151 97 194 C2 237 ED 23 17 66 42 109 6D 152 98 195 C3 238 EE 24 18 67 43 110 6E 153 99 196 C4 239 EF 25 19 68 44 111 6F 154 9A 197 C5 240 FO 26 1A 69 45 112 70 155 9B 198 C6 241 F1 27 1B 70 46 113 71 156 9C 199 C7 242 F2 28 1C 71 47 114 72 157 9D 200 C8 243 F3 29 1D 72 48 115 73 158 9E 201 C9 244 F4 30 1E 73 49 116 74 159 9F 202 CA 245 F5 31 1F 74 4A 117 75 160 AO 203 CB 246 F6 32 20 75 4B 118 76 161 A1 204 CC 247 F7 33 21 76 AC 112. 40022 AMPS L1 3 9063exp 3 0 015625 0 03125 0 0625 0 125 40023 AMPS L2 3 9063exp 3 0 015625 0 03125 0 0625 0 125 40024 AMPS L3 3 9063exp 3 0 015625 0 03125 0 0625 0 125 40025 KW 0 004 0 016 0 032 0 064 0 128 40026 KW 0 004 0 016 0 032 0 064 0 128 40027 KW 0 004 0 016 0 032 0 064 0 128 Per the Veris implementation to obtain true engineering units the values returned from the registers in Table B1 must be multiplied by the scaling value found in Table B2 For example if the PowerScout has 100A CTs connected to it then to get system reactive power kVARs multiply the value returned from reading register 40004 by 0 004 22
3. DENT Instruments for availability Table B2 Veris Multipliers for Integer Registers 40001 40027 7 1601 Address Units 100A 101 400A 401 800A 801 1600A 32 000A 40001 KWH LSB 7 8125exp 3 0 03125 0 0625 125 0 25 40002 KWH MSB 512 2048 4096 8192 16384 40003 KW 0 004 0 016 0 032 0 064 0 128 40004 KVAR 0 004 0 016 0 032 0 064 0 128 40005 KVA 0 004 0 016 0 032 0 064 0 128 40006 aPF 3 0518exp 5 3 0518exp 5 3 0518 5 3 0518exp 5 3 0518exp 5 40007 VOLTS L L 0 03125 0 03125 0 03125 0 03125 0 03125 40008 VOLTS L L 0 015625 0 015625 0 015625 0 015625 0 015625 40009 AMPS 3 9063exp 3 0 015625 0 03125 0 0625 0 125 40010 KW L1 0 001 0 004 0 008 0 016 0 032 40011 KW L2 0 001 0 004 0 008 0 016 0 032 40012 KW L3 0 001 0 004 0 008 0 016 0 032 40013 aPF L1 3 0518exp 5 3 0518exp 5 3 0518exp 5 3 0518exp 5 3 0518exp 5 40014 aPF L2 3 0518exp 5 3 0518exp 5 3 0518 5 3 0518exp 5 3 0518exp 5 40015 aPF L3 3 0518exp 5 3 0518exp 5 3 0518exp 5 3 0518exp 5 3 0518exp 5 40016 VOLTS L1 L2 0 03125 0 03125 0 03125 0 03125 0 03125 40017 VOLTS L2 L3 0 03125 0 03125 0 03125 0 03125 0 03125 40018 VOLTS L3 L1 0 03125 0 03125 0 03125 0 03125 0 03125 40019 VOLTS L1 N 0 015625 0 015625 0 015625 0 015625 0 015625 40020 VOLTS L2 N 0 015625 0 015625 0 015625 0 015625 0 015625 40021 VOLTS L3 N 0 015625 0 015625 0 015625 0 015625 0 015625
4. Neutral Avg 4017 44018 Voltage Line to neutral volts Average Volts L1 to L2 4018 44019 Individual Phase to Phase Voltages Volts L2 to L3 4019 44020 Volts L1 to L3 4020 44021 Line Frequency 4021 44022 Line Frequency Hz kWh L1 LSW 4022 44023 Individual Phase True Energy LSW kWh kWh L1 MSW 4023 44024 Individual Phase True Energy MSW kWh kWh L2 LSW 4024 44025 kWh L2 MSW 4025 44026 kWh L3 LSW 4026 44027 kWh L3 MSW 4027 44028 kW L1 4028 44029 Individual Phase True Powers kW kW L2 4029 44030 kW L3 4030 44031 kVARh L1 LSW 4031 44032 Individual Phase Reactive Energy LSW kVARh kVARh L1 MSW 4032 44033 Individual Phase Reactive Energy MSW kVARh kVARh L2 LSW 4033 44034 kVARh L2 MSW 4034 44035 kVARh L3 LSW 4035 44036 kVARh L3 MSW 4036 44037 kVAR L1 4037 44038 Individual Phase Reactive Powers kVAR kVAR L2 4038 44039 kVAR L3 4039 44040 12 Register Con t Offset Modbus Detailed Description kVAh L1 LSW 4040 44041 Individual Phase Apparent Energy LSW kVAh kVAh L1 MSW 4041 44042 Individual Phase Apparent Energy MSW kVAh kVAh L2 LSW 4042 44043 kVAh L2 MSW 4043 44044 kVAh L3 LSW 4044 44045 kVAh L3 MSW 4045 44046 kVA L1 4046 44047 Individual Phase Apparent Powers kVA kVA L2 4047 44048 kVA L3 4048 44049 Displacement PF L1 4049 44050 Individual
5. 9 77 162 A2 205 CD 248 F8 34 22 77 4D 120 78 163 A3 206 CE 249 F9 35 23 78 4E 121 79 164 A4 207 CF 250 FA 36 24 79 4F 122 7A 165 A5 208 DO 251 FB 37 25 80 50 123 7B 166 A6 209 D1 252 FC 38 26 81 51 124 7C 167 A7 210 D2 253 FD 39 27 82 52 125 7D 168 A8 211 D3 254 FE 40 28 83 53 126 7E 169 A9 212 D4 255 41 29 84 54 127 7 170 213 D5 42 2A 85 55 128 80 171 AB 214 D6 43 2B 86 56 129 81 172 AC 215 D7 20 APPENDIX B VERIS H8035 H8036 EMULATION The PowerScout meter can be used as a direct replacement for the Veris Inc H8035 H8036 Series of networked power meters This mirroring of the Veris Modbus register assignments makes replacement with a PowerScout simple However because the number of parameters that the Veris meters measure is less than half of what the PowerScout can measure the other Modbus registers described in Table 1 need to be used if the additional capabilities of the PowerScout are desired Table B1 Veris Emulation Modbus Register Assignments Modbus Offset Description Units Comments Eo s S 7 0 40001 System Total True Energy LSW kWh Multiplier Required 40002 System Total True Energy MSW kWh Multiplier Required 40003 SystmTotalTruePower kW__ Multiplier Required 40004 System Total Reactive Power Multiplier Required 40005 System Total Apparent Power Multiplier Required 40006 System Total Apparent Powe
6. Attention L utilisation de cet appareil d une mani re pour laquelle il n est pas destin peut annuler ses moyens de protection SYMBOLES DES EQUIPEMENTS A Signifie prudence Voir le manuel pour une description de la signification En faisant la connexion du PowerScout une prise de courant alternatif suivez ces tapes en ordre pour emp cher un risque de choc 1 D charger le circuit contr ler 2 Connectez le TC aux phases surveiller 3 Connectez les fils de tension des phases diff rentes Utiliser des quipements de s curit gants et des v tements de protection qui sont n cessaires pour les tensions surveill es Indique haute tension Risque de choc lectrique Hautes tensions peuvent tre pr sentes qui mettent la vie en danger Personnel qualifi uniquement A NE PAS DEPASSER 600V Ce compteur peut contr ler les charges jusqu 600V Le d passement de cette tension peut causer des dommages l appareil et du danger pour l utilisateur Utiliser toujours le potentiel transformateur PT pour des charges de plus de 600 Le PowerScout est un appareil 600 V de surtension de cat gorie III AN UTILISEZ SEULEMENT TRANSFORMATEURS DE COURANT TC FOURNIS Ne pas utiliser d autres TC Un s rieux risque de choc et de dommages au compteur peut se produire si d autres TC sont utilis s L quipement prot g en double isolation IEC 536 Classe II Pas d accessoires approuv s pour une utilisatio
7. Phase displacement Power Factor PF Displacement PF L2 4050 44051 Displacement PF L3 4051 44052 Apparent PF L1 4052 44053 Individual Phase apparent Power Factors PF Apparent PF L2 4053 44054 Apparent PF L3 4054 44055 Amps L1 4055 44056 Individual Phase Currents A Amps L2 4056 44057 Amps L3 4057 44058 Volts L1 to Neutral 4058 44059 Individual Phase to Neutral Voltages V Volts L2 to Neutral 4059 44060 Volts L3 to Neutral 4060 44061 Time Since Reset LSW 4061 44062 Seconds since KWH register was reset LSW Time Since Reset HSW 4062 44063 Seconds since KWH register was reset MSW Volts Scalar not implemented 4064 44065 For use with step down transformer Amps Scalar not implemented 4065 44066 For use with primary CTs Firmware Major Revision 4068 44069 Firmware Minor Revision 4069 44070 CT Value x2 4300 44301 In Amps CT value x2 Data Scalar 4301 44302 See Table 2 Demand Window Size 4302 44303 In Minutes 1 to 60 Default 15 minutes Other Misc Registers Settable Register Offset Modbus Detailed Description Synchronize Register 128 40129 The multiple meters synchronization register Other Misc Registers Not Settable Register Offset Modbus Detailed Description Model Number 1 2 bytes 4200 44201 Model Name 10 bytes ASCII Alpha Numeric Model 2 4201 44202 Model 3 4202 44203 Model 4 4203 44204 li Model Number last 2 bytes 4204 44205 E Serial Number 1 2 bytes 4205 44206 Serial Number 10 byte
8. USER S MANUAL PowerScout ViewPoint INSTRUMENTS September 29 2008 2008 DENT Instruments Inc DENT Instruments 64 NW Franklin Avenue Bend Oregon 97701 2906 USA Phone 541 388 4774 Fax 541 385 9333 www DENTinstruments com PowerScout SAFETY SUMMARY and SPECIFICATIONS This general safety information is to be used by M both the Logger operator and servicing Conforms to ULStd 61010 1 personnel DENT Instruments Inc assumes no a 2o us Certified to CSA Std C22 2 No 61010 1 liability for user s failure to comply with these 3168586 safety guidelines The PowerScout is an Over Voltage Category III device CAUTION This METER may contain life threatening voltages QUALIFIED PERSONNEL MUST Disconnect all high voltage wiring before USING or servicing the METER Warning Use of this device in a manner for which it is not intended may impair its means of protection SYMBOLS ON EQUIPMENT Denotes caution See manual for a description of the meanings When connecting the PowerScout to an AC load follow these steps in sequence to prevent a shock hazard 1 De energize the circuit to be monitored 2 Connect the CTs to the phases being monitored 3 Connect the voltage leads to the different phases Use proper safety equipment gloves and protective clothing as required for the voltages monitored Denotes high voltage risk of electric shock Life threatening voltages may be present Qualified per
9. aming Communication Rate Data Bits Parity Stop Bit Data Formats Power Mechanical Operating Temperature Humidity Enclosure Weight Dimensions Three Phase Four Wire WYE CATIII 80 346 Volts AC Line to Neutral 600V Line to Line 3 channels 0 5 000 Amps depending on current transformer 18 channels 0 5 000 Amps depending on current transformer True RMS using high speed digital signal processing DSP 50 60Hz DC 13 kHz Volts Amps kW kWh kVAR kVARh kVA kVAh Apparent Power Factor aPF Displacement Power Factor dPF All parameters for each phase and for system total Better Than 196 0 596 typical for V A kW KVAR kVA PF 1 Amp 1 Volt 1 watt 1 VAR 1 VA 0 01 Power Factor Depending on scaling setting 24 bi color LEDs red and green 4 LEDs per each watt metering element Each element has 1 LED to indicate communication and 3 LEDs for correct phasing Green when voltage and current on the on the same phase Red when incorrectly wired Patent pending Modbus over RS 485 RTU binary 9600 baud 8 None 1 Modbus Protocol From L1 Phase to L2 Phase PS 18 5 Watts typ 600VAC 2 5W typ 80VAC non user replaceable 5 Amp Internal fuse protection 7 to 60 C 20 to 140 F 5 to 95 non condensing Optional NEMA 4 rated ABS plastic 94 VO Flammability Rating 0 4 kg 11 ounces Exclusive of CTs Approx 6 X 10 15 X 25 cm Circuit Board Only PowerScout 18 ViewPoint Minim
10. bus protocol the actual register address requested is offset from the base Modbus register by 40001 Table 1 Modbus Register Assignments Offset refers to a base of 40001 Register Offset Modbus Detailed Description kWh System LSW 4000 44001 System Total Net True Energy LSW kWh kWh System MSW 4001 44002 System Total Net True Energy MSW kWh kW System 4002 44003 System Total True Power kW kW Demand System Max 4003 44004 Max Average power window KW kW Demand System Now 4004 44005 Average power KW most recent window System Maximum Instantaneous kW kW System Max 4005 44006 Highest 500mS kW System Minimum Instantaneous kW kW System Min 4006 44007 Lowest 500mS kW kVARh System LSW 4007 44008 System Total Net Reactive Energy LSW kVARh kVARh System MSW 4008 44009 System Total Net Reactive Energy MSW kVARh kVAR System 4009 44010 System Total Reactive Power kVAR kVAh System LSW 4010 44011 System Total Apparent Energy LSW kVAh kVAh System MSW 4011 44012 System Total Apparent Energy MSW kVAh kVA System 4012 44013 System Total Apparent Power kVA Displacement PF System 4013 44014 System Total Power Factor PF Apparent PF System 4014 44015 System Total Power Factor PF Amps System Avg 4015 44016 Total current in all phases Volts Line to Line Avg 4016 44017 Voltage Line to line Volts Average Volts Line to
11. dynamic range that is larger than 65535 and require two Modbus registers Any parameter in Table 1 that shows two registers identified by the terms MSW and LSW is such a wide ranging parameter To correctly interpret the values found in these registers note that the number in the MSW Most Significant Word register should be multiplied first by 65536 This number should be added the value found in the corresponding LSW Least Significant Word register and then multiplied by the appropriate value from Table 2 For example assume that System Total True Energy kWh is desired and the value of 5013 is read from register 44001 LSW and 13 is read from register 44002 MSW and that the Register 44064 Scalar is set to 3 To calculate the total kWh recorded Multiply the MSW by 65536 gt 13 X 65536 851968 Add the LSW gt 851968 5013 856981 Multiply by the Table 2 Scalar of 0 1 gt 856981 X 0 1 85698 1 kWh 14 Resetting Modbus Registers Most of the PowerScout registers are real time values such as instantaneous watts or power factor However some registers are accumulated values such as kWh kVARh kVAh and various Peak Demand kW values To reset the accumulating registers use the standard Modbus protocol to write a 0 to register 40001 Modbus Implementation amp Further Information More information about Modbus can be found from Modicon in the Modicon Modbus Protocol Reference Guide PI MBUS 300 R
12. e a Modbus address that is one higher than the element before For example if the rotary address switches are set to 01 then metering element A register values will be accessed at Modbus address 01 metering element B registers will be accessed at Modbus address 02 C at address 03 and so on On the PowerScout 3 and PowerScout 18 the rotary switches are 16 position hexadecimal switches The default factory setting is hex 01 Modbus Address Decimal 01 254 different Modbus addresses are allowed from 01 hex 01 to decimal 254 hex FE Addresses hex 00 Decimal 00 and hex FB through hex FF Decimal 251 through 255 are reserved for factory use See Appendix A for a decimal to hex conversion if your equipment is decimal based Each PowerScout 18 uses 6 Modbus address Next connect the Modbus wires to the connector in the meter Use Diagram below Modbus RS 485 Modbus To Other Devices Shield Wiring of the CT s For each of the six 3 phase metering elements A through F connect the current transformers as shown in the diagram below Current Transformer To Voltage Connections Connections on PowerScout 18 On the PowerScout One Set of Six Shown L1 12 L3 N Black Red Blue 14AWG THHN or Equivalent CAT Ill 600VAC Phase Phase Max Note The CTs are insensitive to orientation and may be placed on the wires to be monitored with the CT faces in either direction The CTs are connected on the PowerScout board i
13. eChek I SENT 1 Madina lower Meter PowerScout 18 Layout and Watt Transducer Naming Convention A Upper Lower Meter A Modbus Address Watt Meter Watt Meter Watt Meter POWER SUPPLY CAT III 600VAC Phase Phase Max MODBUS CONNECTOR Watt Meter Watt Meter Watt Meter Neutral Line 3 Line 2 Line 1 WARNING REMOVE THE METER FROM ALL SOURCES OF VOLTAGE BEFORE MOUNTING Mounting the PowerScout 3 The PowerScout 3 must be installed in an approved electrical panel or enclosure using proper installation practices according to the local electrical codes For convenience of mounting two mounting tabs are provided on the PowerScout 3 Mounting the PowerScout 18 Open the top cover of the case to expose four 275 7mm mounting holes one at each corner Using the appropriate screw for the material that the PowerScout will be mounted to screw the case to the mounting surface The location you mount the case must be able to support at least 3 lbs Wiring the Modbus For the PowerScout 18 only open the top cover of the case if so equipped by turning the two corner screws counter clockwise until loose Set two rotary switches on the circuit board near to the Modbus RS 485 connector to the Modbus address desired These switches on both the PowerScout 3 and PowerScout 18 set the address for metering element A Metering elements B through F will always hav
14. ev J The entire document may be found at http www modicon com techpubs toc7 html 15 SECTION III ViewPoint Software The ViewPoint program is designed to let you easily configure the PowerScout for the current transformers connected to it and to check readings Installing the Software An RS 485 to USB adapter or RS 422 485 to Serial adapter is required to connect the computer to the PowerScout Remove power from the PowerScout before installing the adapter Refer to Section IV of this manual for safety precautions and further information regarding the RS 422 485 to Serial Adapter After the adapter is installed apply power to the meter and proceed with installing the ViewPoint program High voltage MAY BE PRESENT Risk of electric shock Life threatening voltages be present Qualified personnel only A Haute tension PEUT TRE PR SENTE Risque de choc lectrique Tensions dangereuses peuvent tre pr sentes Personnel qualifi uniquement Step 1 If installing ViewPoint from the CD insert the ViewPoint CD into the CD ROM drive The installer should start automatically If it does not browse to the CD and run the ViewPointSetup exe program If you have downloaded ViewPointSetup exe browse to its location and run it Step 2 After installing successfully the ViewPoint program will run and will display a Communications screen with two values to fill in Mi ViewPoint PR Communications Realt
15. g up the desired screen Below is a brief description of each tab Communications The Communications tab lets you specify the PC COM Port and the Modbus Base Address to let the program communicate with the PowerScout Real Time Values The Real Time Values tab displays the current readings to allow you to verify that the system is configured properly Select one of the six elements a PowerScout 18 using the radio buttons and click Update to get the values for that element Set CT Values The Set CT Values tab let you change the type of current transformers connected Read amp Write Registers The Read amp Write Registers tab allows you to view or change the value of any PowerScout registers See the User s Manual for a list of the registers and their description This tab is provided for diagnostic and special configuration purposes and is not required for a basic setup Select one of the six elements a PowerScout 18 using the radio buttons to choose which element to read or write to Help Menu The ViewPoint program has a built in Help file which you can bring up by clicking the Help button in the upper right hand corner of the window This will open your web browser and display help for the tab currently selected in the program 17 SECTION IV RS 422 485 Adapter Instructions for Installing the USB to RS 485 Adapter 1 Insert the B amp B Electronics CD that came with the USB to RS 422 485 adapter into
16. ime Values CT Values Read Write Registers SE NT ViewPoint Setup The Modbus Base Address is a hexadecimal Communications Setup value that should match the switches on the PowerScout The field is pre configured with the default value of 01 which is how the switches are set at the factory If that is your current configuration then there s nothing more to do regarding the Modbus Base Address PC COM Port 8 Modbus Base Address Switches 01 Meter connection should be established for other abs to be fully functional Device Info Model Number Serial Number Firmware Version The PC COM Port lets you choose which serial port the computer should use to communicate with the PowerScout see diagram at right Select RS 485 from the drop down list Status With both the Modbus Base Address and PC COM Port values entered correctly click the Connect button to establish a connection to the PowerScout meter The program will communicate with the meter and display its version information If it could not connect you can change the settings or the hardware connection and try again until it works 16 Step 3 Once you re communicating with the PowerScout you can use the other tabs in the ViewPoint program to configure the PowerScout See the next section for a description of each tab Using the ViewPoint Program The program has four tabs to bring up screens for a particular task Click a tab to brin
17. indows message about logo compatibility and click Continue anyway and then Finish when the installation is complete Found New Hardware Wizard Please wait while the wizard installs the software Hardware Installation E 5 485 Isolated Port z The software you are installing for this hardware RS 485 Isolated Port has not passed Windows Logo testing to verify its compatibility with Windows Tell me why this testing is important Continuing your installation of this software may impair or destabilize the correct operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the hardware vendor for software that has passed Windows Logo testing ContinueAnyway STOP installation The New Hardware Wizard will come up a second time in order to install the serial port Repeat steps 4 8 When the Completing the Found New Hardware Wizard is displayed remove the CD from your computer and store Verify that the dip switches on the back of the USB to RS 422 485 adapter are set to RS 422 485 Echo Off 2 Wire 2 Wire The adapter is now ready for use 19 SECTION V APPENDIX APPENDIX A HEXIDECIMAL to DECIMAL CONVERSION Table A1 Decimal Value is the Modbus Meter Address Hex Value Corresponds to the Two Rotary Switch Settings Left switch is high digit Right switch is low digit
18. n avec le PowerScout sauf ceux sp cifi s par DENT Instruments dans ses documentations sur les produits et galement sur les prix Si le compteur semble endommag ou d fectueux tout d abord d connecter le pouvoir de l appareil Alors s il vous pla t appelez 541 388 4774 ou contacter par courriel l assistance technique techhelp dentinstruments com pour obtenir de l aide SECTION I INTRODUCTION Using this Manual This manual contains information about the PowerScout 3 PowerScout 18 ViewPoint Software and the RS 422 485 to Serial Adapter For ease of use this manual has been divided into five sections The list of sections and their contents follows Section I Introduction Section II The PowerScout Section III ViewPoint Software Section IV Configuring the RS 422 485 Adapter Section V Appendix PowerScout Overview The PowerScout watt transducers are made for the non revenue submetering market Each meter is made to monitor the voltage current power and energy of a single three phase system The PowerScout meter uses direct connections to each phase of the voltage and uses current transformers or Rogowski coils to monitor each phase of the current Energy demand power factor line frequency etc are derived from the voltage and current inputs The communication interface to the unit is through an RS 422 485 serial connection that uses the Modbus protocol for sending commands and retrieving data A separate
19. n positions labeled L1 L2 L3 and must be placed on the phase wires of the load to be monitored corresponding to the phase of the voltage leads i e The CT labeled L1 must be placed on L1 phase voltage wire the L2 CT must be on the L2 voltage and the L3 CT on the L3 voltage Wiring of the Voltage Input Last connect 14 AWG THHN or equivalent wires to the PowerScout CAT III voltage terminals as shown in the diagram above after a building installed dedicated circuit disconnect breaker while being as close as possible to it following the local electrical codes Mark the breaker as the disconnect for the PowerScout Note that the PowerScout has an internal non user replaceable 5 Amp Internal fuse protection Warning DO NOT EXCEED 600Vac PHASE TO PHASE CAT III When complete close the enclosure cover if equipped Attention NE PAS D PASSER UNE PHASE 600VAC CAT III Une fois termin fermer le covercle s il y en a un Powering the PowerScout 3 and 18 The PowerScout instruments are self powered from the L1 and L2 lines When 80 340VAC or DC are put across the L1 and L2 wires the three phasing LEDs will begin to flash in sequence If the LEDs are all green then the system power factor is greater than 0 55 and the CTs are properly placed on the corresponding voltage phases If two or three of the LEDs are red then there is a phasing connection error If two LEDs are red and one is green Switch the positions of the tw
20. o CTs that are red That should make all three LEDs green Using PhaseChek PhaseChek patent pending is a unique feature of the PowerScout and greatly simplifies installation and at a glance verifies correct CT orientation during installation The PowerScout automatically adjusts for CT orientation greatly reducing set up time and all but eliminating installation errors If two or three of the PhaseChek LEDs are red then there is a phasing connection error If two LEDs are red and one is green switch the positions of the two CTs that are red That should make all three LEDs green If all three PhaseChek LEDs are red probably the CTs are connected in the correct order but off by one position For example the L1 CT is on the L2 phase the L2 CT is on the L3 phase and the L3 CT is on the L1 phase Rotate the CTs until all of the LEDs are green thus ensuring a correct metering condition You can also verify that your PowerScout is set up correctly by using ViewPoint The ViewPoint program is designed to let you easily configure the PowerScout for the current transformers connected to it and to check readings More information about ViewPoint can be found in Section III of this manual Note If the total system power factor is less than 0 55 the LEDs will be red even if connected properly This situation is rare but could occur if the load to be monitored is a lightly loaded electric motor for example 10 PowerScout Modbu
21. r Factor PF Multiplier Required 40007 _____ Average Line to Line Voltage Volts Multiplier Required 40008 Average Line to Neutral Voltage Volts Multiplier Required 40009 J sumofline Currents 1 Multiplier Required 40010 Phase True Power kw Multiplier Required 40011 l2PhaseTruePowr kW Multiplier Required 40012 L3PhaeTruePowr kW Multiplier Required 40013 L4 Phase Apparent Power Factor aPF Multiplier Required 40014 L2 Phase Apparent Power Factor aPF Multiplier Required 40015 L3 Phase Apparent Power Factor aPF Multiplier Required 40016 11 12 Voltage Vols Multiplier Required 40017 l2 l3Votageg Vols Multiplier Required 40018 B lVotagg Volts Multiplier Required 40019 Ui NewrdVoltagg Volts Multiplier Required 40020 U NewrdVoltagg Volts Multiplier Required 40021 U3 NewrdVoltagg Volts Multiplier Required 40022 o UGmem Multiplier Required 40023 turret Amps Multiplier Required 40024 l3Curn Amps Multiplier Required 40025 System Average Demand kW Multiplier Required Variable Window Resetable 40026 System Minimum Inst Demand kW Multiplier Required 500mS 40027 System Maximum Inst Demand kW Multiplier Required 500mS All values are 16 bit unsigned integers The PowerScout does not currently support the Veris floating point registers Consult
22. remote terminal unit RTU Data Logger or Building Management and Control System is usually connected to the PowerScout to provide for data recording and trend logging and any human interface or display Up to 41 PowerScout 18 meters 249 PowerScout 3 meters may be connected to a single for monitoring and recording power usage at multiple locations within a single site The PowerScout 18 PS18 consists of six independent three phase metering elements labeled A through F in the drawing below Each metering element has provision for three current transformers CTs one for each phase In this way the PowerScout 18 can measure six independent three phase loads The voltage reference is made on the power supply board as shown below The single connection point for the voltages is common to all six of the watt metering elements Therefore though six independent three phase loads can be monitored by a single PowerScout 18 all six loads must have the same voltage source e g be in the same panel To monitor multiple voltage sources for example 480 277V and 208 120V loads across a transformer two PowerScout 18 s will be needed one for each voltage source SECTION Il THE POWERSCOUT PowerScout Technical Specifications Service Type 3 Voltage Channels Current Channels PS3 PS18 Measurement Type Line Frequency Waveform Sampling Measurements Accuracy Resolution Indicators Communication Direct Modbus Fr
23. s ASCII Alpha Numeric Serial 2 4206 44207 Serial 3 4207 44208 A Serial 4 4208 44209 Serial Number last 2 bytes 4209 44210 13 Interpreting the PowerScout Registers Data Scaling The use of Modbus protocols limits the data registers to a maximum of 2 bytes 16 bits or a maximum decimal value of 65535 Modbus also requires that the values be integer values To overcome these limitations some measured and stored values have to be scaled to fit into the Modbus registers To convert the raw data read from the Modbus registers a scalar must be multiplied by the raw value For this meter the scaling is Table 2 Data Scalar and Resolution of Modbus Values for Registers 44001 thru 44061 yee kW kWh Demand kVAR kVARh kVA kVAh Power Factor Amps Volts 0 00001 00001 00001 01 0 01A 0 1V 1 001 001 001 01 0 1 0 1 2 01 01 01 01 0 1 0 1 3 d d d 01 0 1 0 1 4 1 1 1 01 1A 1V 5 10 10 10 01 1 1 26 100 100 100 01 1 1 For example if the scalar value in register 44302 is set to 3 and the total true power for the system kW is read from Modbus register 44003 Offset 4002 and a value of 3465 is returned the true system kW is 3465 X 0 1 346 5 kW A raw value of Apparent Power Factor from register 44015 might be 87 This would correspond to an actual power factor of 87 X 0 01 87 PF Additionally some values e g kilowatt hours may cover a
24. s Commands The Modbus commands that are used by the PowerScout meter are the Read Holding Register command the Write Preset Single Register command and the Return Slave ID command The Read Holding Register command is the most often used as this is the command that retrieves the actual voltage power and energy values from the meter Typically the RTU continually reads the values from the registers containing the desired information The following is a quick reference to three common Modbus commands Read Holding Register Command 03 each item below is 8 bits is as follows Meter Address Command 03h FIRST MSB FIRSTLSB Number to read MSB Number to Read LSB CRCLSB CRC MSB Meter Address which meter to read FIRST First point to read Number to read Number of points to read Write Preset Single Register Command 06 each item below is 8 bits is as follows Meter Address Command 06h REG MSB LEG LSB DATA MSB LSB CRC LSB CRC MSB Meter Address which meter to write DATA value to store Write Return Slave ID Command Command 17 each item below is 8 bits is as follows Meter Address Command 17h CRCLSB CRC MSB Meter Address which meter to respond 11 PowerScout Modbus Register Assignments Table 1 is a listing of all of the data registers available on the PowerScout Note that following the Mod
25. sonnel only DO NOT EXCEED 600V This meter is equipped to monitor loads up to 600V Exceeding this voltage will cause damage to the meter and danger to the user Always use a Potential Transformer PT for loads in excess of 600 The PowerScout is a 600 Volt Over Voltage Category III device USE ONLY CURRENT TRANSFORMERS CTs SUPPLIED Do not use other CTs A serious shock hazard and meter damage can occur if other CTs are used Equipment protected throughout by double insulation 536 Class 11 No accessories are approved for use with the PowerScout other than those specified in the DENT Instruments product literature and price sheets If the Meter appears damaged or defective first disconnect all power to the meter Then please call 541 388 4774 or email tech support techhelp dentinstruments com for assistance PowerScout R SUM DE S CURIT ET SP CIFICATIONS Cette information de s curit est destin e tre ANTERTE4 rece QU eee jp i RE Us Certifi CSA Std C22 2 No 61010 1 n assume aucune responsabilit pour l utilisateur qui LISTE ne respecte pas les directives en mati re de s curit 3168586 Le PowerScout est un appareil de surtension de cat gorie III ATTENTION Ce METER peut contenir de hautes tensions qui peuvent tre dangereuses UN PERSONNEL QUALIFI DOIT d brancher tous les c bles haute tension avant d utiliser ou de r parer du METER A
26. um System Requirements Operating System Communications Port Hard Drive Processor Windows 7 32 or 64 bit Vista 32 or 64 bit XP or 2000 One USB Port or Serial Port 50 MB minimum available Pentium Class 1 GHz or more recommended Connections To The PowerScout The PowerScout has a connector for four voltage wire leads for making connections to voltage sources L1 L2 L3 Neutral The PowerScout 18 also has connectors for up to 18 current transducers CTs PowerScout 3 has 3 CTs The PowerScout also has a three wire connector for the RS 485 Modbus link CAUTION THE POWERSCOUT SHOULD ONLY BE WIRED BY QUALIFIED PERSONNEL HAZARDOUS VOLTAGES EXIST ATTENTION LE POWERSCOUT NE DOIT TRE BRANCH QUE PAR UN PERSONNEL QUALIFI TENSIONS DANGEREUSES SONT PR SENTES DANGER THE UNENCLOSED POWERSCOUT BOARD REQUIRES EXTRA CAUTION WHEN CONNECTING LIFE THREATENING VOLTAGES EXCEEDING 600 VOLTS MAY EXIST ON THE BOARD THE RISK OF SERIOUS INJURY OR DEATH SHOULD NOT BE UNDERESTIMATED DANGER LA PLAQUETTE DE CIRCUITS IMPRIM S SANS COUVERCLE EXIGE UN REDOUBLEMENT DE PRUDENCE QUAND ON FAIT LA CONNEXION LES TENSIONS D PASSANT 600 VOLTS PEUVENT EXISTER SUR LA PLAQUETTE ET PEUVENT METTRE LA VIE EN DANGER LE RISQUE DE BLESSURES GRAVES OU DE MORT NE DOIT PAS TRE SOUS ESTIM Connecting the PowerScout 3 N 12 Load LI Current Voltage fT Mons NL fer ei INN 9 E me Phas
27. your PC Plug the USB to RS 422 485 adapter into a PC USB port 3 The Found New Hardware Wizard will appear The first screen will ask Can Windows connect to Windows Update to search for software 4 Click notthis time then Next 5 Click Install from a list or specific location Advanced Next a Found New Hardware Wizard Welcome to the Found New Hardware Wizard This wizard helps you install software for 5 485 Isolated Port If your hardware came with an installation CD or floppy disk insert it now What do you want the wizard to do 6 In the New Hardware Wizard select Search for the best drivers in these locations and Search removable media floppy CD ROM Found New Hardware Wizard Please choose your search and installation options E M Search for the best driver in these locations Use the check boxes below to limit or expand the default search which includes local paths and removable media The best driver found will be installed Search removable media floppy CD ROM C Include this location in the search C Program Files Keyspan USB Serial Adapter drive Don t search will choose the driver to install Choose this option to select the device driver from a list Windows does not guarantee that the driver you choose will be the best match for your hardware 7 Click NEXT gt 18 8 10 11 12 Ignore the W
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