8500695D 966PB-200X Profibus RTD Input User`s Manual
Contents
1. eeeeeeeees 15 Enclosure PhySical ccesseeeseeeeeeeeeeeeeees 15 Agency Approvals ccceceeeeceeeeeeeneneeeeeenene 16 ENnvirOnme italic nscccanccctessnanantenectnawenan sealers 16 Communication Interface eceeceeeeeeeeeens 17 Controls amp Indicators cceeeeeeeeeeeeeeees 19 Module Specific Parameters 0 000 19 Data TYPOS co i sevececcsesnsccececrestageseseqerdsnstezes 20 Windows is a registered trademark of Microsoft Corporation Profibus is a registered trademark of ProfiBus Trade Organization All trademarks are the property of their respective owners Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 966PB Module User s Manual Rubber Plug Pull To TB4 connections are present Remove For Switch Access for Model 966P B 2006 only rs we TB4 j TBS AAAA CCC f L Acromag ees RUN BUS 46 45 441 43 42 A iso ss0 23 2 afg oo p seaza aies o RTD INPUTS 45 MEN PWR FTE 066P B 2006 ONLY Mo Nw Q So PROFIBUS C noa K l RTD INPUTS 01 RID INPUTS 23 sS g eesis Jasser as Pla ala 15 46 Rae ala ss L M SIS ISISIS S SISSA SSS y TB1 TB2 1 05 TR2. The address stored in the internal EEPROM is modified via the Set Slave Address command If the address switches are set to 126 or 126 to 254 upon power up the module will retrieve the last address stored within its EEPROM 126 from the factory With both the internal EEPROM and external switch addresses set to 126 the unit will await the Set Slave Address command after power up before proceeding to the parameterization state address 126 cannot be used in data exchange mode and is reserved for commissioning purpose only You must use the Set Slave Address command to change the internal EEPROM address following power up in order to proceed However if the switches are set to an address less than 126 upon power up then the switches determine the slave address and the EEPROM setting is ignored You can later restore the internal EEPROM setting to 126 by powering the unit up with the address switches set to 255 FF You would then power the unit up again with these switches set to 126 in order to place the unit in commissioning mode CONNECTIONS FRCMDIN RAL ra DOWNWARD PRESSUREERE When attaching the module to the T type DIN DIN Rail RAAT Soe TOREMONENPROMAAL rail angle the top of the unit towards the rail Mounting ue ue N and locate the top groove of the adapter over esaa eag soea ag the upper lip of the rail Firmly push the unit amp Remov
3. 200M 100M ProfiBus RTD Input D CONNECTIONS Network Use ProfiBus connectors similar to the one shown at left Siemens version shown Always use ProfiBus cable per DIN 19245 and EN 50170 When building cables do not mix A amp B connections Green wire is A Red wire is B The connector must have built in inductors in order to operate at the higher baud rates GSD Files 966PB 2004 ACR0O0702 GSD Ident_Number 0702 Hex 966PB 2006 ACR0O0701 GSD Ident_Number 0701 Hex IMPORTANT Do not connect earth ground to logic Ground DB9 Pin 5 Earth Ground should connect to cable Shield common to DB9 Pin 1 Note that Acromag modules also support the optional RTS direction control signal at Pin 4 Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 6 BusWorks 966PB Module User s Manual CONNECTIONS Network Example ProfiBus System Connections Up to 125 slave modules may network together with a class 1 master using four repeaters one repeater every 31 nodes Address 0 is typically reserved for the class 1 master Note 12Mbps installations require a minimum cable length of 1M between stations TIP A recommended RS485 repeater for ProfiBus is the Siemens 6ES79720AA01 OXAO0 Power Voltage Current ProfiBus RTD Input Termination The network must be terminated at both ends only Most ProfiBus connectors include a switch
4. 966PB SIMPLIFIED SCHEMATIC ISOLATED RS485 plese cece gt BUS N PROFIBUS E SPC3 SLAVE T MICRO ASIC RS485 CONTROLLER PROFIBUS WwW TRANSCEIVER O R K ADDRESS BUFFER ISOLATED INPUT POWERE P D ISOLATED SECONDARIES SENDE o NETWORK 5V F VDA Mar tw rower Let dR PEL OTE Soe E lt 7 yo P INPUT LOGIC Vv Jl LRIN 2 100 POWER H EARTH GROUND Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 1 4 BusWorks 966PB Module User s Manual ProfiBus RTD Input SPECIFICATIONS Model Numbers 966PB 2004 4 Ch RTD 966PB 2006 6 Ch RTD Analog Inputs These DC powered DIN rail mount ProfiBus DP slave modules will condition up to four or six RTD input signals according to the model and provide an isolated RS485 ProfiBus network interface Inputs as a group network and power are isolated from each other Non volatile reprogrammable memory in the module stores configuration and calibration information The ProfiBus model prefix 900 denotes the Series 900 The PB suffix denotes ProfiBus Select 966PB for RTD inputs The four digit suffix of this model number represents the following options respectively 2 ProfiBus DP 0 Default 04 or O6 4 or 6 Channels respectively Four or six RTD input channels according to model number The
5. LED will flash for a moment If the diagnostics complete OK the Run LED will stop flashing after a few seconds and remain ON This indicates the unit is operating normally Once the unit has passed through the initialization parameterization and configuration states and is in data exchange mode the yellow BUS LED will be ON If the BUS LED is OFF and the unit is connected to the network then this is indicative of an initialization problem Follow the ProfiBus installation guidelines Use the recommended cable and connectors of the standard Verify that none of the wires are broken or shorted Don t mix up the A amp B lines Green wire is A red wire is B Do not exceed the recommended segment length for the baud rate Make sure that there are no more than 32 RS 485 devices per segment including the master device and the repeater e Check for proper termination of all copper wire network segments an RS 485 segment must have a termination resistor at both ends of the segment only e All activated terminations must be powered all the time If this is not possible then consider using an active termination box e Check whether the station address is set to the correct value e f your network connects between buildings or runs through hazardous environments consider the use of fiber optics e Avoid drop lines and keep their length within the specified maximum If you employ T drops consider using repeaters and active b
6. Both the internal EEPROM and external address switches are set to an address of 126 Module is awaiting Set Slave Address command in order to complete initialization Alternately set switches from 0 125 and re power Yellow BUS LED turned OFF Communication Halted Turn power off and then ON to reset unit Investigate grounding Cannot communicate Is power ON at the module and or RS485 converter Check power Is green RUN LED ON Is address correct Check address settings at the slave Is the termination switch of the Profibus connector at the prior node turned on Switch Termination on only at the ends of the network With termination switch on the outgoing connections are disconnected from the network chain Continuous flashing green RUN LED Internal firmware problem Return the module for service Many Communication Errors Missing Termination Resistors Termination resistors must be placed only at both ends of a network or network segment Is baud rate too high for distance Maximum distance is limited below 1200 meters as baud rate is increased above 93 75Kbps see Table Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 966PB Module User s Manual There are six calibration channels for these models The following table gives the calibration values for supported input r
7. Resolution 0 005 or 1 part in 20000 see Table 2 below Table 2 Effective Resolution Per Applicable Range 10Q Cu a 1 4272 0 2 C 0 36 F Pt a 1 3850 0 1 C 0 18 F Pt a 1 3911 0 1 C 0 18 F Ni a 1 6720 0 1 C 0 18 F 0 to 5000 7 8125mQ Input Conversion Rate 80ms per channel or 480ms for all six input channels Input Filter Normal mode filtering plus digital filtering optimized and fixed per input range within the A ADC Input Filter Bandwidth 3dB at 3Hz typical Noise Rejection Normal Mode Better than 40dB 60Hz typical with 100Q input unbalance Noise Rejection Common Mode Better than 130dB 60Hz typical with 100Q input unbalance 10Q unbalance for Cu RTD Dimensions 1 05 inches wide 4 68 inches tall 4 35 inches deep Refer to Enclosure and Physical the dimensions drawing at the front of this manual DIN Rail Mount Type EN50022 T rail 35mm I O Connectors Removable plug in type terminal blocks rated for 15A 300V AWG 12 24 stranded or solid copper wire Network Connector 9 pin D Sub connector female with metal housing and 4 40 jack screw support Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 1 6 BusWorks 966PB Module User s Manual Enclosure and Physical Agency Approvals Environmental CAUTION Do not exceed 36VDC peak to avoid damage to the module External Fuse Select a high surge tolerant fuse r
8. amp GROUNI IC 2 INTL tei LY J NOTE1 DO NOT APPLY EARTH GROUND TO INPUT LEADSOR INPUT TERMINALS EARTH GROUND SHOULD INSTEAD BE APPLIED AT THE INPUT LOGIC GROUND TERMINAL LRTN AT TB3 33 RESISTANCE INPUT RESISTANCE amp S No e 8 S mo S INOL gt JUMPER IN TO INL FOR 8 IN1 RESISTANCE BOXOR 2 WIRE N 2 1 2 amp e mL Tei L NOTE 1 gt EARTH 2 WRE RTD GROUND 16 15 14 13 12 11 RTD INPUTSO 1 C JUMP N glo eloo ala JUMPER IN TO INL FOR 2 WIRERTD IMPORTANT RTD INPUTSARENOT ISOLATED CHANNEL TO CHANNEL UNUSED INPUTS TERMINATE UNUSED INPUT CHANNELS R B S mNo g S 2 No D R S 2 INOL S ve SAE Q 2 m1 R S 2 NIL DONOTLEAVEUNUSED NJ INPUTS FLOATING v Connect Earth Ground as shown in the connection drawings above Note that earth ground is connected to the LRTN terminal and should not connect to the inputs Additionally ground the ProfiBus cable as shown in the drawing below The ground connections noted are recommended for best results If sensors are already grounded use caution and avoid making additional ground connections which could create ground loo
9. ProfiBus RTD Input 2 1 Revision History The following table shows the revision history for this document Release Date EGR DOC Description of Revision 14 APR 03 BC KLK Initial release 29 SEP 03 OB BC KLK Update user parameters and approvals per ECN 03J021 02 NOV 04 C CAP KLK Added latest UL information to manuals and labels per ECN 04J008 02 FEB 15 OD FJM ARP Correction to connectors on DB9 Connections table
10. RTD INPUTS 45 HEX PWR 966P B 2006 ONLY l OPTICAL se i i a i if O Pe ees e l i y ammeu a1 l gegzed jee glee g fat 12 13 14 15 6 lar 2 z 25 26 NOAA ARARA R a giaisllg __aiaisisis s TBI TB2 i ANALOG INPUTS ANALOGINPUTS ProfiBus RTD Input 3 MOUNTING AND DIMENSIONS Unit mounts to T type DIN rails 35mm type EN50022 Units may be mounted side by side on 1 inch centers WARNING IEC Safety Standards may require that this device be mounted within an approved metal enclosure or sub system particularly for applications with exposure to voltages greater than or equal to 75VDC or 50VAC CONTROLS amp INDICATORS Green Run LED will stay ON if power is on and unit is OK and will blink if unit fails Yellow BUS LED will turn ON if module is properly connected to the network and in data exchange mode ISOLATION BARRIERS Dashed Lines denote isolation barriers The input circuit network and power circuits are isolated from each other for safety and noise immunity Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 4 BusWorks 966PB Module User s Manual SETTING SLAVE ADDRESS Address is set to 126 7EH from the factory This address is reserved for commissioning purposes only Locate hexadecimal address switches in recessed opening next to power term
11. Select OOH 3 Wire Pt a 1 3850 01H 3 Wire Pt a 1 3911 02H 3 Wire Ni a 1 6720 03H 3 Wire 10Q Cu a 1 4272 04H 3 Wire 0 to 5002 05H 2 Wire Pt a 1 3850 O6H 2 Wire Pt a 1 3911 07H 2 Wire Ni a 1 6720 08H 2 Wire 10Q Cu a 1 4272 09H 2 Wire 0 to 5009 Channel 2 amp 3 Range Select Same Format as Channel 0 amp 1 See Above Channel 4 amp 5 Range Select Same Format as Channel 0 amp 1 See Above Break Detection 00H Upscale all channels 01H Downscale all channels Writing 55H to this register will cause the module to restore its original factory calibration Note that 55H is not stored but acts as a trigger as this byte always reads as OOH Factory Use Only Do Not Modify Note that channels share the same break detect configuration but the input range may vary between channel pairs All parameterization bytes take effect immediately This model does not include any user defined diagnostic data Ext_Diag_ Data ProfiBus RTD Input 1 Q Controls amp Indicators Module Specific Parameters User_Prm_Data Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 20 BusWorks 966PB Module User s Manual ProfiBus RTD Input Data Types I O values of Acromag 9xxPB modules are represented by the following simple data types for temperature percentage and discrete on off Note that when transferring wor
12. six RTD input signals HOW IT WORKS according to model number and provide an isolated RS485 ProfiBus interface for configuring and monitoring the inputs One A D is provided for every pair of input channels and each input drives a separate A D channel An integrated multiplexer and analog switch are used to connect each of two A D input channels to the A D converter The A D converter then applies appropriate gain to these signals performs analog to digital conversion and digitally filters the signals The digitized A D signal is then transmitted serially to a microcontroller The microcontroller completes the transfer function according to the input type range per its embedded program Configuration and calibration parameters are stored in non volatile memory integrated within the microcontroller These modules implement the ProfiBus protocol via an industry standard SPC3 ASIC from Siemens This ASIC acts like a RAM or UART chip to the internal microcontroller and completely handles the requirements of the protocol standard The ASIC will transfer network data to the microcontroller and automatically provide the response to the bus The ASIC handles the ProfiBus protocol and communicates with the network via an optically isolated RS485 transceiver A wide input switching regulator isolated flyback provides isolated power to the input circuit and the RS485 port Refer to the simplified schematic below to gain a better understanding of the circuit
13. 66PB 2004 0701 Hex 966PB 2006 GSD File ACRO0702 GSD 966PB 2004 ACRO0701 GSD 966PB 2006 Bus Idle State 1 a start bit causes line to go to O An idle state of at least 33 Tbits sync time must be provided between messages Note 1Tbit at 12Mbaud 1 12000000bit sec 83nsec Network Capacity Multi drop up to 31 modules plus a host without a repeater Up to 125 modules plus a host if four repeaters are used one for every 31 nodes Network Termination Use 2200 A to B plus 3900 A to GND and 3900 B to 5V Use 2 0 25W resistors Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 966PB Module User s Manual LED Indicators Run Green Constant ON indicates power is applied and unit is OK Flashing ON OFF indicates unit is performing diagnostics first few seconds following power up or has failed diagnostics after a few seconds Bus Yellow ON indicates unit has completed its initialization sequence and is in the data exchange mode on the network Switches Slave Address Slave address is set via two rotary hexadecimal switches adjacent to the power terminals remove rubber plug if present to access these switches see Address above This model includes 5 user parameterization bytes User_Prm_Data defined as follows Description Default Do Not Use Reserved for SPC3 ASIC NA Channel 0 amp 1 Range
14. 7mA 217mA Max 142mA 157mA Max 147mA 162mA Max 87mA 96mA Max 92mA 102mA Max 62mA 69mA Max 62mA 69mA Max CAUTION Risk of Electric Shock More than one disconnect switch may be required to de energize equipment before servicing Power Supply Effect Volts Less than 0 001 of output span change per volt for rated power supply variations 60 120 Hz Ripple Less than 0 01 of output span per volt peak to peak of power supply ripple Isolation Input channels as a group power and network circuits are isolated from each other for common mode voltages up to 250VAC or 354V DC off DC power ground on a continuous basis will withstand 1500VAC dielectric strength test for one minute without breakdown Complies with test requirements of ANSI ISA 82 01 1988 for voltage rating specified Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 966PB Module User s Manual Installation Category Designed to operate in an Installation in a Pollution Degree 2 environment with an installation category Overvoltage Category II rating Electromagnetic Interference Immunity EMI Measurement shift has been demonstrated at less than 2 5 of a 100 C reference span for interference from switching solenoids commutator motors and drill motors Electromagnetic Compatibility EMC Minimum Immunity Per European Norm EN50082 1 Electrostatic Discharge ESD Immunity 4KV direct contac
15. ALDINMOUNTNG e 3 90 gt 26 7 7 DIN EN50022 35mm 99 1 4 35 NOTE Dimensions Are INCHES MLLIMETERS 110 5 MODEL 966PB 2006 ENCLOSURE DIMENSIONS REMOVEPLUG TO ACCESSDPSLAVE 1B4 corrections are present ADDRESS SWITCHES for Model 966P B 2006 anly TE4 TBS AAAA AA Sele RUN PWR LED GREEN linc BUSSTATUSLED YELLOW Ri US oo PRORBUS a le x PROFIBUSCONNECTOR DEO FEMALE ay REMOVABLE PLUG IN TYPE TERMINAL BLOCKS 66 ule e nyg isp usp z 2 3 9 gE K Ja laa gos SLAVE 222 322 appress amp 8 RIDINPUTS 45 ren PWR 966P B 2006 ONLY RIDINPUTS 01 RID INPUTS 23 taalta ta alte a s djia Salse j 2 22 222 yi 8 2 amp 2 p e oju s Rae z ow A AAARAA ARAL AA AA iS QR V je VIPs TBI TB2 l 963 964PB ANALOG INPUTS PWR l l ISOLATION er 15 DIAGRAM AAAA 222 i s 45 4 43 a2 ng isp mso x3 2 af l wos e suave Ela 3 7 zegj ADDRESS 5 amp i i
16. Acromag i BusWorks 900PB Series ProfiBus RS485 Network I O Modules Model 966PB 2004 Four Channel RTD Input Module Model 966PB 2006 Six Channel RTD Input Module USER S MANUAL A put PROFIS NGR in U po ana WARS ee A eso ACROMAG INCORPORATED Tel 248 624 1541 30765 South Wixom Road Fax 248 624 9234 Wixom MI 48393 2417 U S A Copyright 2002 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8500695D 2 BusWorks 966PB Module User s Manual ProfiBus RTD Input TABLE OF CONTENTS Symbols on equipment A Means Refer to User s Manual this manual for additional information The information of this manual may change without notice Acromag makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Further Acromag assumes no responsibility for any errors that may appear in this manual and makes no commitment to update or keep current the information contained in this manual No part of this manual may be copied or reproduced in any form without the prior written consent of Acromag Inc IMPORTANT SAFETY CONSIDERATIONS You must consider the possible negative effects of power wiring component sensor or software failure in the design of any type of control or monitoring system This is very important where property los
17. C to the power terminals labeled DC amp DC For supply connections use No 14 AWG wires rated for at least 75 C Observe proper polarity CAUTION Do not exceed 36VDC peak OBSERVEPROPER POLARITY 12TO36VDC Tee _ g 2 5 INPUT POWER N MIE ISISOLATED S 1 8 4 Gls EARTH aI GROUND jS Note that earth ground is connected to the LRTN terminal as shown above and is not connected to the inputs CAUTION Risk of Electric Shock More than one disconnect switch may be required to de energize equipment before servicing IMPORTANT External Fuse If unit is powered from a supply capable of delivering more than 1A to the unit it is recommended that this current be limited via a high surge tolerant fuse rated for a maximum current of 1A or less for example see Bel Fuse MJS1 Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 966PB Module User s Manual ProfiBus RTD Input 1 v Connect analog input signals to the input terminals as shown below according to your signal type Note earth ground DONOT GROUND WIRE RTD m m P TG EJ mno an S 9 mo a Se S 2 INOL S d j kg NoE1 S R INI w INT S DONOT ND
18. a network useful for identifying missing or offline devices e Can test individual stations and help identify duplicate addresses Troubleshooting Tools e Can measure the distance along a network segment to verify if it complies with the Profibus requirements for distance and data rate e They can detect signal reflections along the network useful for locating bus line interruptions and discontinuities Acromag strongly suggests the use of these tools for building and maintaining ProfiBus networks Note that Profichip also offers a Profibus connector PA003100 that includes 4 network diagnostic LED s that may be helpful in trouble shooting your network see table below The standard 9 pin ProfiBus connectors with integrated termination Using Connectors To resistors are also helpful in troubleshooting segments of the network In Troubleshoot most of these connectors when the termination resistors are switched ON the outgoing portion of the connector is disconnected As such you can selectively disable segments of the network until you find the branch that is causing the problem For example if your handheld unit is connected to the beginning of a network and indicates a wire break you can selectively switch off portions of the network and recheck your handheld unit to help pin point the portion of the network that is causing the problem Below are some ProfiBus connectors that we recommend Preferred Bus Connectors Manufacturer P
19. al gel towards the rail until it snaps into place To 5 remove first separate the input terminal a ve block s from the bottom side of the module to create a clearance to the DIN mounting area Next while holding the module in place from Cit O A v above insert a screwdriver into the lower arm a a Klin 12 13 14 15 16 Klar 2 3 4 25 26 FAFAFLAF ARARA ZF H of the DIN rail connector and use it as a lever x Remove Terminal Blocks On This Side To Provide Clearance A to force the connector down until the unit PRY WITH SCREWDRIVER disengages from the rail do not twist the DAMAGNG LAST TAB screwdriver to avoid damaging plastic DAMAGING PLASTIC TAB PUSH SCREWDRIVER ASSHOWN TO TILT AND LIFT MODULE OFF RAIL Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 966PB Module User s Manual Siemens ProfiBus Connector ho o DB9 Male i Termination Cm A HR Switch gt gt Ban on rpm AN N g ple i ProfiBus i Cale gt J J GreenWre A E Videt a 7 27 RedWre B IN OUT Network Do not mix RS485 A amp B connections Green wire is A redwireis B You MUST terminate the network at both ends only Termination resistors are integrated in
20. anges These are the input signals required to calibrate the range endpoints If calibration is required it is recommended that all ranges of the unit be done INPUT RANGE Pt 1000 200 to 850 C a 1 3850 Low Calibration High Calibration 850 C 390 480 Pt 1000 200 to 850 C a 1 3911 850 C 395 120 Ni 1200 80 to 320 C a 1 6720 300 C 439 440 Cu 100 200 to 260 C a 1 4272 250 C 18 730 0 to 5000 Linear a 1 000 450 000 These models have two I O Configuration definitions in their GSD files one for normal operation and another for accomplishing calibration The normal data exchange definition supports 6 input words 12 input bytes representing your measured values A second calibration definition supports 6 input words and 6 output words The master software will allow you to choose which mode the slave will assume Input Mode or Configuration Mode The method used to transfer information between the master and slave will vary widely between systems The steps below represent the minimum steps necessary to accomplish software calibration If you choose to perform calibration and select Configuration Mode the master will download the 61 60 word configuration during the startup sequence and the module may then be calibrated as follows 1 2 3 ea OS With your master software select the Configuration Mode from the GSD file when setting up the master to
21. art Number Special Features Siemens 6ES7972 0BA12 0XA0_ Switchable Termination Siemens 6ES7972 0BB12 0XA0 Adds PB Interface Piggy Back DB9 For Diagnostic Connection Profichip PA003100 Adds PB Interface and Four Diagnostic LED s For Trouble Shooting ProfiBus includes a rich diagnostic function that can be used to Diagnostics Function troubleshoot ProfiBus devices This function contains 6 bytes of standard diagnostic information plus up to an additional 238 bytes of device specific diagnostic information Most configuration tools support this command and can read the diagnostic information from the Profibus device Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 1 0 BusWorks 966PB Module User s Manual Diagnostics Table If your problem still exists after checking your wiring and reviewing this information or if other evidence points to another problem with the unit an effective and convenient fault diagnosis method is to exchange the module with a known good unit Acromag s Application Engineers can provide further technical assistance if required Complete repair services are also available from Acromag SYMPTOM Yellow BUS LED does not light POSSIBLE CAUSE Initialization Problem LED ON if module in data exchange state ProfiBus RTD Input POSSIBLE FIX Check Station Address Is GSD file correct Check for wiring error
22. ated for 1A or less to protect unit Note that input channels are not isolated channel to channel ProfiBus RTD Input D Sub Pin Signal Description Shield Connect to Earth Ground No Connection Data A TxD RxD Request To Send RS485 Logic Ground 5V No Connection Data B TxD RxD No Connection Note SHLD pin 1 connects to the DB9 connector shroud which connects to the cable shield which is earth grounded 0O N O O01 B G Po Case Material Self extinguishing NYLON type 6 6 polyamide thermoplastic UL94 V 2 color beige general purpose NEMA Type 1 enclosure Printed Circuit Boards Military grade FR 4 epoxy glass Shipping Weight 1 pound 0 45 Kg packed ProfiBus Trade Organization PTO Certified Safety Approvals CE marked EMC Directive 89 336 EEC UL Listed UL508 UL1604 cUL Listed Canada Standard C22 2 No 142 M1987 amp 213 M1987 Hazardous Locations Class 1 Division 2 Groups A B C and D Operating Temperature 25 C to 70 C 13 F to 158 F Storage Temperature 40 C to 85 C 40 F to 185 F Relative Humidity 5 to 95 non condensing Power Requirements 11 36V DC SELV Safety Extra Low Voltage Observe proper polarity Current draw will decrease up to 13 as the baud rate is increased to 12MB Data below is at 9600 baud Supply 966PB 2004 Current 966PB 2006 Current Typical Maximum Typical Maximum 189mA 208mA Max 19
23. communicate with the module With user parameter bytes 0 amp 1 set the ranges that are to be calibrated Apply the zero calibration signal see table of prior page to the input to be calibrated and allow the input to settle a few seconds Write FFH into the low order byte of the channel s output word several times to ensure transmission In Configuration Mode the module will automatically calibrate the channel s zero value when FFH is detected Then write OOH into the low order byte to complete zero calibration Apply the full scale calibration signal Cal Hi see table to the input to be calibrated and allow the input to settle a few seconds Write FFH into the high order byte of the channel s output word several times to ensure transmission In Configuration Mode the module will automatically calibrate the channel s full scale value when FFH is detected Then write 00H into the high order byte to complete full scale calibration Repeat steps 3 6 for the other channels of the same range With user parameter bytes 0 5 select the next range to be calibrated Repeat steps 3 7 for all channels of this range Repeat steps 8 9 until all input ranges have been calibrated When finished calibrating use the master software to return the module to the normal Input Mode to prevent miscalibration After completing calibration the module should be reconfigured as required and placed in the normal Input Mode configurati
24. d Response Protocol Standard ProfiBus DP Master Slave protocol per European Norm EN50170 Baud Rate Supported baud rates are 9600 19 2K 45 45K 93 75K 187 5K 500K 1 5M 3M 6M and 12M bits per second auto detected Maximum transmission length is dependent on baud rate selection range is up to 1200M at 9600bps or up to 100M at 12Mbps Refer to the following table for maximum transmission distances at supported baud rates using recommended type A lt 30pF M or alternately type B lt 60pF M bus wire see EN50170 ProfiBus RTD Input 1 7 Environmental These limits represent the minimum requirements of the standard but product has typically been tested to comply with higher standards in some cases Communication Interface Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 1 8 BusWorks 966PB Module User s Manual ProfiBus RTD Input Communication Interface kae a ae Baud Rate 9600 bps 19 2K bps lt 93 75K bps 187 5K bps 500K bps 1 5M bps lt 12M bps Parity Even parity Stop Bits One Communication Distance Up to 1200 meters without a repeater Address Set via two rotary hexadecimal switches or alternately via the Set Slave Address command Remove the rubber plug if present adjacent to the power terminals to access these switches Valid setting is 0 125 7 bits Address 126 7EH is the default factory address and is r
25. d unit does not require special bus couplers power supplies or a rack mount to operate Plug In Terminal Blocks amp DIN Rail Mount Make mounting removal and replacement easy Barrier strip and spring clamp type terminals are also available as an option Industry Standard ASIC Uses Siemens SPC3 intelligent ASIC to talk ProfiBus Isolated RS485 ProfiBus Network Interface Highly immune to noise and can operate over long distances Allows many modules to network together Flexible Quad or Hex RTD Inputs Accepts four or six channels of input for Platinum Pt Copper Cu and Nickel Ni RTD types or simple resistance RTD s are connected in 2 or 3 wire fashion Linearization excitation lead break detection and lead wire compensation 3 wire are included Ratiometric Differential RTD Sampling The RTD is sampled differentially using ratiometric conversion and this increases accuracy Automatic Self Calibration Built in self calibration helps correct for temperature drift of the input circuit every 60 seconds Upscale Or Downscale Break Detection Inputs may be configured to go upscale or downscale upon lead breakage Auto Baud Rate Detection The baud rate is set automatically High Speed Data Rates Half duplex RS485 up to 12M baud Includes RTS Support ProfiBus interface includes the optional RTS Request To Send direction control Precise High Resolution A D Conversion Modules use high resolut
26. ds more than 1 byte the high byte is transmitted first followed by the low byte Big Endian Motorola format Percentage A 16 bit signed integer value with resolution of This model 0 005 Isb 20000 is used to represent 100 For example 100 0 and 100 are represented by decimal values 20000 0 and 20000 respectively The full range possible is 163 84 32768 decimal to 163 835 32767 decimal Temperature A 16 bit signed integer value with resolution of 0 1 C Isb This model For example a value of 12059 is equivalent to 1205 9 C a value of 187 equals 18 7 C The maximum possible temperature range is 3276 8 C to 3276 7 C Discrete A discrete value is generally indicated by a single bit of an 8 bit byte The bit number position typically corresponds to the discrete channel number Unless otherwise defined for outputs a 1 bit means the corresponding output is closed or ON a 0 bit means the output is open or OFF For active high inputs a value of 1 means the input is in its high state usually gt gt OV while a value of 0 specifies the input is in its low state near OV For active low inputs a value of 1 means the input is ON Active low near OV while a value of 0 specifies the input is OFF or in its high state usually gt gt OV Notes Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 966PB Module User s Manual
27. eserved for commissioning purposes only Address 127 7FH is reserved by the software as a global address for broadcast messages If the address switches are set to 126 upon power up or 126 254 then the unit will retrieve its address from its internal EEPROM rather than the switches The internal EEPROM setting is modified via the Set Slave Address command Powering up with switches set to 255 FFH will cause the internal EEPROM setting to revert back to 126 7EH which may be used to recommission the module If both the internal EEPROM address and the switches are set to 126 upon power up this is the initial state from the factory the module will await the Set Slave Address command before completing initialization and assuming the data exchange mode IMPORTANT Address Setting The internal EEPROM address setting and external switch setting is 126 from the factory As such the module will await the Set Slave Address command following power up and will not proceed to exchange data unless the external switches are instead set to an address from 0 125 or the internal setting is changed to an address from 0 125 via the Set Slave Address command Maximum Message Size Up to 32 bytes recommended extendable up to 244 bytes of data node message plus 11 bytes of overhead data frame ProfiBus Character 11 bits 1 start bit 8 data bits 1 even parity bit 1 stop bit Applies to all bytes including frame bytes Ident_Number 0702 Hex 9
28. for termination as shown above Note that this switch will also disconnect the outgoing network signal A network segment may contain up to 32 nodes without the use of a signal repeater to 1200 m at both en TERMINATION WITI i mer RS485 SIGNAL T REPEATER SS 6 1 NODE T NODE 32 cay 30 NODE 32 NODE 2 START OF SEGMENT END OF SEGMENT NODE 31 TERMINATION on J TERMINATION ON TERMINATION C ON SEGMENT 2 UP TO 1200 METERS JZ vee UP TO 32 NODES PER SEGMENT PROFIBUS MASTER PLUG IN CAI NETWORK LENGTH PER INSTALLED iN PC RATE w TYPE A UI PROFIBUS CABLE START OF NETWORK TERMINATION REQD eai MASTER A PC WITH PROFIBUS C CARD INSTALLED AND diam oe nates APPLICATION 5 a III i NODE 1 PROFIBUS RS485 NETWORK SEGMENT 1 UP TO 1200 METERS UP TO 32 NODES PER SEGMENT NOTE THE PROFIBUS CONNECTORS SHOWN HAVE A TERMINATION NETWORK BUILT IN WITH TERMINATION ON THE OUTGOING CABLE IS DISCONNECTED FROM NETWORK SWITCH TERMINATION ON ONLY AT THE BEGINNING AND END OF A NETWORK OR NETWORK SEGMENT v Connect 12 36V D
29. inals remove rubber plug Use a screwdriver to rotate these switches to set a unique valid address from 0 to 125 If the switches are set to a valid address from 0 125 then the switch setting determines the slave address and the Set Slave Address software command will be rejected If these switches are instead set to 126 7EH upon power up or 126 to 254 the unit will retrieve its address from the internal EEPROM which is modified via the Set Slave Address command If these switches are set to 255 FFH upon power up this will return the address in EEPROM to 126 7EH ProfiBus RTD Input Remove Rubber Plug HEX ADDRESS To Access Address MSD LSD Switches x16 xi TOP EDGE VIEW Con _ HHHHAHHE eee 2 T SET SWITCHES TO A VALID SLAVE ADDRESS FROM 0 TO 125 00H TO 7DH than this address Set MSD switch to this number s corresponding HEX digit MSD ___ 0 16 32 48 64 80 96 112 ftag Msa teq 7a 182 298 224 24g xte HEX o i 2 3 4 5 6 7 Paya iafalc ately p Choose a slave address from 0 125 and locate highest MSD number less isp DEC 0 1 213 4151 6 7 8 9 10 11 12 13 14 15 x frexfoti 2isi4isieli7 eiofaleic ojelr D Determine the DECimal remainder and set the LSD switch to its corresponding HEX digit 3 Replace the rubber plug if present over this switch opening to shield circuit from debris
30. ion low noise sigma delta analog to digital conversion for high accuracy and reliability Nonvolatile Reprogrammable Memory Allows the functionality of this device to be reliably reprogrammed thousands of times Fully Isolated Input channels as a group network and power are all isolated from each other for safety and increased noise immunity LED Indicators A green LED indicates power A yellow bus LED indicates proper network connection and unit in data exchange mode Watchdog Timer Built In Standard for the ASIC and operates in the data exchange mode if communication with the master is lost Self Diagnostics amp Diagnostic Watchdog For easy maintenance and troubleshooting Includes a hardware watchdog timer built into the microcontroller that causes it to initiate a self reset if the controller ever locks up or fails to return from an operation in a timely manner Wide Range DC Power Diode coupled power provides reverse polarity protection and may be used with redundant supplies and or battery back up Hardened For Harsh Environments For protection from RFI EMI ESD EFT amp surges Has low radiated emissions per CE requirements Wide Ambient Operation Reliable over a wide temperature range Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 966PB Module User s Manual ProfiBus RTD Input 1 3 These input modules will process up to four or
31. may be necessary to install an additional potential equalization line between field locations to minimize this current as shown here EQUIPOTENTIAL BONDING STRIP a IF NECESSARY SEE NOTE CONNECTIONS Analog Inputs Input is Cu Pt or Ni RTD or resistance connected in 2 wire or 3 wire fashion Inputs are not isolated channel to channel Unused inputs should be terminated and not left floating For 2 wire connections be sure to jumper the IN and INL leads together Do not attach earth ground to any input leads Earth ground should connect to the LRTN terminal at TB3 33 Earth Ground PROFIBUS CONNECTOR PROFIBUS FIELD DEVICE EARTH GROUND SCREW ON EQUIPMENT WHEN AVAILABLE THE SHIELD IS COMMON TO THE HOUSING FOR METAL ENCLOSURES XS PROFIBUS CABLE A per DIN 19245 and Use ProfiBus cable A EN 50170 hid Red Use only approved cables lt with braided shields of density greater than 80 PVC Sheath Green Wire A Red Wire B Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 8 BusWorks 966PB Module User s Manual ProfiBus RTD Input TROUBLE SHOOTING Tips For Building ProfiBus Networks Top Four Common ProfiBus Problems Troubleshooting Tools The module routinely performs internal diagnostics following power up or reset During this period the green Run
32. on I O configuration is 6 input words only In general your software allows you to select the normal Input Mode configuration and the slave will then be taken off line by the master and reconfigured If reconfiguration is successful the slave module will pass to the data exchange state with a normal I O configuration ProfiBus RTD Input 1 1 CALIBRATION IMPORTANT This module has already been calibrated at the factory and recalibration is not normally required except as necessary to correct for long term component aging or to satisfy your company s maintenance requirements Do not attempt to recalibrate this module unless absolutely required as miscalibration will negatively affect the module s performance For best results be sure to use a precision signal source capable of reproducing the nominal endpoint signals shown below at least as accurate as the module itself better than 0 1 of span Always allow the module to warm up a few minutes prior to calibration Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 1 2 BusWorks 966PB Module User s Manual ProfiBus RTD Input TECHNICAL REFERENCE KEY FEATURES PTO Certified Unit certified by the ProfiBus Trade Organization Safety Agency Approvals CE marked UL amp cUL listed Class 1 Division 2 Groups A B C D approvals Fully Independent Slave w Direct I O Connection This self containe
33. ps Warning To comply with safety and performance standards use shielded cable and connect earth ground as noted Failure to use good wiring and grounding practices may be unsafe and hurt performance The plastic module housing does not require earth ground PROFIBUS CONNECTOR PROFIBUS WIRING AND GROUND GROUNDING PROFIBUS FIELD DEVICE to EARTH GROUND SCREW ON EQUIPMENT WHEN AVAILABLE THE SHIELD IS COMMON TO THE HOUSING FOR METAL ENCLOSURES ACROMAG MODULES The metal shroud of the DB9 ProfiBus connector on Acromag modules is common to pin 1 of the DB9 connector SHIELD This is also common to the n SL Te a a Ta GROUND CLAMP cable shield which must be earth grounded Acromag modules are enclosed in plastic and do not provide a dedicated earth ground screw As such a local earth ground connection to the cable shield must be made as shown above 1 Always connect the cable shield to earth ground at both ends as shown 2 If the field device does not include an earth ground screw it may be necessary to strip the cable insulation near the field device and clamp the cable shield to a local grounding bar or surface as shown CABLE SHIELD NOTE If a potential difference exists between earth grounding points an equalization current can flow through the cable shield when connected at both ends In this case it
34. s or human life is involved It is important that you perform satisfactory overall system design and it is agreed between you and Acromag that this is your responsibility GETTING STARTED MOUNTING AND DIMENSIONG 0 ceceeeeeeeees 3 CONTROLS amp INDICATORG 0ccseeeeeeeeeeeeeeees 3 ISOLATION BARRIERG 0ceceeceeeeeeeeeeeeeeeenenens 3 SETTING SLAVE ADDRESS ccceceeeeeeeeeeneees 4 CONNECTIONS riiseni rnaar 4 DIN Rail Mounting And Removal 4 NetWork icosreeii iarann na aada aa 5 POWER oes amasnnkedavnnedsdienntexnamidescdanecedeasnan ness 6 Analog INputs ccccececeeeeeeeeeeeeeeeeeeeeeeeeeeeees 7 Earth Grounds cies sicscsceccsiacsiettsnnnsteensseetenante 7 TROUBLESHOOTING ccceceeeeeeeeeeeeeeeee eee eees 8 Tips For Building ProfiBus Networks 8 Top Four Common ProfiBus Problems 8 Troubleshooting Tools ccccceseseeeeeeeeneees 8 Using Connectors To Troubleshoot 9 Diagnostics FUNCtiON ccceeeeeeeeeeeeeeeeeee 9 Diagnostics Table ccceceeeeeeeeeeeeeeeeeeeeees 10 CALIBRATION aiinsir esasan nana atar ia 11 TECHNICAL REFERENCE KEY FEATURES noiosi 12 HOW IT WORKG 0cccceceeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 13 SPECIFICATIONS cccecctescostscscsccsadcecsteasescczteceesce 14 Model Numbe rs 0 eceeeeeeeeeeeeeeeeeeeeees 14 Analog Inputs 23 6c 0ccos0cesccectecdecneeenedeeasecnens 14 General Specifications
35. t and 8KV air discharge to the enclosure port per EN61000 4 2 Radiated Field Immunity RFI 10V M 80 to 1000MHz AM and 900MHZz keyed carrier per EN61000 4 3 and ENV50204 Electrical Fast Transient Immunity EFT 2KV to power and 1KV to signal I O per EN61000 4 4 Conducted RF Immunity CRFI 10V rms 150KHz to 80MHz per EN61000 4 6 Surge Immunity 1KV per EN61000 4 5 Emissions Per European Norm EN50081 1 Radiated Frequency Emissions 30 to 1000MHz per EN55022 Class A WARNING This is a Class A product In a domestic environment this product may cause radio interference in which the user may be required to take adequate measures IMPORTANT Power input and output I O wiring must be in accordance with Class Division 2 wiring methods Article 501 4 b of the National Electrical Code NFPA 70 for installations in the U S or as specified in section 18 1J2 of the Canadian Electrical Code for installations within Canada and in accordance with the authority having jurisdiction This equipment is suitable for use in Class I Division 2 Groups A B C and D or non hazardous locations only WARNING EXPLOSION HAZARD Substitution of components may impair suitability for Class I Division 2 WARNING EXPLOSION HAZARD Do not disconnect equipment unless power has been switched off or the area is known to be non hazardous Interface Standard 3 wire RS 485 multi drop half duplex D D bar and Common asynchronous Comman
36. the ProfiBus connector When you switch termination ON the out going connections are disconnected fromthe network Strip Cable Similar to Shown AB 0 25 3 0 35 oO E7 0 30 PVC Sheath nsul Shlid t Use ProfiBus cable per DIN 19245 and EN 50170 ProfiBus Socket DB9 Female CY 4 A 7 7 7 7 AAA eEriririnir ininiririr 6H MG 4 Ls msb 23 32 31 rooaaefhf E5555 8 ass 8 DIGITALIN or OUT HEX PUR Model 983PB 2012 Shown 981PB 2012 amp 982PB 2012 Similan DIGITAL IN or OUT DIGITAL IN or OUT BAHE Bees 11 12 13 14 15 16 errs AAA PAA AA C C PA NINININININ NINININININ RIGHT SIDE VIEW Lic IN OUT Green Wire A Network Red Wire B Network Length Use Type A ProfiBus cable per EN 50170 Keep line lengths less than the length indicated below for your transmission rate For baud rates not shown the lower length of the closest range end points apply i e 100M at 3Mbps Bus Segment Length Limit Per Baud Rate For Type A Bus Cable 12M BAUD 9 6K 19 2K 93 75K 187 5K 500K 1 5M Type A 1200M 1200M 1200M 1000M 400M_
37. unit must be wired and configured for the intended input type and range see Connections Section for details The following paragraphs summarize this model s input types ranges and other applicable specifications RTD User configured to one of four RTD types or as a simple resistance input as noted in Table 1 of the following page The module supports 2 or 3 wire connection types and provides sensor excitation linearization lead wire compensation 3 wire mode and sensor lead break detection Input Reference Test Conditions Unless Otherwise Noted Pt RTD 0 C to 100 C Ni RTD 0 C to 50 C Cu RTD 0 C to 250 C Ambient 25 C Power 24VDC Input Configuration Two wire or three wire only Excitation Current 1mA DC typical all types Linearization Better than 0 25 C typical Lead Wire Compensation Applies to 3 wire RTD with lead wires of equal size and length The maximum possible resistance including lead wires is 5060 Thus the maximum lead resistance is approximately 250 per lead Pt 15Q per lead Ni 10Q per lead Cu 3Q per lead 5000 resistance Lead Resistance Effect 3 5 C per Q of unbalance typical for Pt 1 4 C per Q of unbalance typical for Ni 25 5 C per Q of unbalance typical for Cu Break Detection Sensor failure open or lead breakage can provide upscale or downscale indication for all channels This applies to faults with individual leads or all leads together IMPORTANT 0 500 ohm inputs
38. us terminations 1 Incorrect slave address set at the slave 2 ProfiBus connector between the master and slave has its termination switch turned ON 3 Incorrect module configuration sent to slave 4 Configuration is based on outdated GSD file information There are several models of handheld devices on the market that simplify the installation and troubleshooting of Profibus networks The more sophisticated units include LCD displays that read out errors directly Two of these of these devices are referenced below Hand Held ProfiBus Network Maintenance Tools Manufacturer Part Number Special Features Siemens BT 200 Primarily a Cable Tester Comsoft NetTest II Set Includes DP Mono Master 4000 7 06C J Functionalit In general these devices can be used to check the network wiring before devices are connected to the bus and are often used to indicate Whether the A and B lines have been switched Whether a short exists between the A amp B lines and shield The occurrence of a wire break in the A or B line or shield line Improper termination Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 966PB Module User s Manual ProfiBus RTD Input Q These tools can also be used to check the RS 485 interface of a TROUBLE ProfiBus device after it has been connected and may include the following SHOOTING e The ability to create a list of all stations connected to
39. w break detection The maximum input resistance including lead wires is about 506Q If break detection is set downscale and your input resistance is greater than 5060 saturated this will trigger break detection and the input reading will be sent downscale for the over range input resistance without actual lead breakage Likewise upscale break is indistinguishable from an over range input resistance greater than 5060 Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 966PB Module User s Manual ProfiBus RTD Input 1 D Table 1 Supported RTD Types Ranges and Accuracy a Note Table 2 Alpha a is used to identify the particular RTD curve The value of alpha is derived by dividing the resistance of the sensor at 100 C by the resistance at 0 C a Rioo c Roec For Pt 100Q this is 138 50 100 0Q or 1 385 also shown as 0 003859 Q C Accuracy Accuracy is better than 0 1 of span typical for nominal input General Specifications ranges This includes the effects of repeatability terminal point conformity and linearization but does not include sensor error Measurement Temperature Drift Better than 50ppm C 0 005 C Analog to Digital Converter A D A 16 bit 2 A converter Analog Devices AD7714YRU A D reference is 10200 1 02V at 1mA excitation The differential input is sampled ratiometric to the reference Input Bias Current 1mA DC excitation current
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