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CompactBlock LDX RTD/Resistance Input Module User Manual

Contents

1. Untitled SST Profibus Configuration AEE Fle Edt View Onine Hep TE oy s A u PROFIBUS DP FT E gg Masters 5136 PFB 104 MASTER Rev 1 2 ABl 5136 PFBISA MASTER Rev 1 3 5136 PFB PCI MASTER Rev 1 2 38 5136 FB MASTER Rev 1 3 ffl SST PFB CLX MASTER Rev 1 0 SST PFB PCMCIA MASTER Rev 1 4 SST PFB PLCS MASTER Rev 1 4 J SST PFB REL MASTER Rev 1 4 SST PFB SLC MASTER Rev 1 4 UCS E Slaves Rockwell Automation 1790P T4R0 VI OO1 1790P T4T0 V1 001 1790P T8BV8B 1 001 0 1790P T8BV8V VI 001 9 1790P TNOC2 1 001 9 1790 4 V1 001 9 1790P TNAVO V1 001 1790P TNOV2 V1 001 i ES Highlight the slave right click the mouse and 5136 PS select GSD Files 1790 T4RO gsd Station Number Device 1d GS Vendor Model OKOS generated unknown unknown hw 7 Highlight the slave from the Online Browse pane and drag and drop it to the Network pane The slave station number should be set If you dragged and dropped from the PROFIBUS Device pane you must set the station number Untitled SST Profibus Configuration EE Eie Edit View Library Online Help c 9 e DF 5 88 000 Disconnected SST PFB SLC MASTER pales E etes Br gn SST 5136 PFB 104 MASTER Rev 1 2 5136
2. frequency components at or below the cutoff frequency are passed by the digital filter with less than 3 dB of attenuation frequency components above the cutoff frequency are increasingly attenuated as shown in the graphs below for several of the input filter frequencies NOTE Channel cutoff frequency should not be confused with channel update time The cutoff frequency simply determines how the digital filter attenuates frequency components of the input signal Module Data Status and Channel Configuration for DeviceNet 3 7 Gain dB Gain dB Gain dB 10 Hz Input Filter Frequency Frequency Response Graphs 50 Hz Input Filter Frequency j 3 dB 0 38 20 20 40 40 60 80 80 _ 100 100 120 S 4 140 140 160 160 180 180 200 200 0 10 20 30 40 50 60 0 50 100 150 200 250 300 262 He Frequency Hz us Hy Frequency Hz 60 Hz Input Filter Frequency 250 Hz Input Filter Frequency 0 3 dB 0 20 20 40 40 80 rH 80 0 H 5 100 10 120 120 140 140 160 160 180 180 200 200 H 0 60 120 180 240 300 360 0 250 500 750 900 1150 1300 15 72 Hz Frequency Hz 65 5 Hz Frequency Hz 500 Hz In
3. High Byte Cancel Help 9 Click the Ext Prms tab This is where the parameters that can be set for the slave RTD resistance module are configured Rockwell Automation 1790 4 x General Modules SLC Address Std Prms Ext Prms Diagnostics this screen you see all the Name parameters for the Watchdog Time Module Data Type Celsius module These Filter Cutoff 10Hz Type Ch Type Ch1 RTD Type Ch2 RTD Type Ch3 SOO cof Edit Hex Details Defaults Resistance 100m Ohm Resistance 100m Ohm Resistance 100m Ohm Resistance 100m Ohm include watchdog time temperature units filter frequency and input RTD resistance type Module configuration parameters include watchdog time base temperature units filter frequency and input RTD resistance type Select the watchdog time base 10 ms or 1 ms Name Rockwell Automation 1790 4 0 Eg General Modules SLC Address Std Est Prms Diagnostics Module Data Type Filter Cutoff Type ChO Type Ch1 RTD Type Ch2 Type Ch3 NOTE CO Co 5 Watchdog Time Basis Resistance 100m Ohm Resistance 100m Ohm Resistance 100m Ohm Resistance 100m Ohm Edit Hex Details Defaults Publication 1790 UM002A EN P C 6 Module Configuration for PROFIBUS Rockwell Automation 1790
4. 1x23 8 8 1x2 4 4 1x2 22 2 1x2 1 1 1 1 32767 L_0x 215 0 This position is always 0 for positive numbers Publication 1790 UM002A EN P B 2 Two s Complement Binary Numbers Negative Decimal In two s complement notation the far left position is always 1 for negative Values values The equivalent decimal value of the binary number is obtained by subtracting the value of the far left position 32768 from the sum of the values of the other positions In the figure below all positions are 1 the value is 32767 32768 1 For example 1111 1000 0010 0011 214 213 212 211425 21 20 215 16384 8192 4096 2048 32 2 1 32768 30755 32768 2013 1x2 216384 16384 1x2P 28192 8192 1x2P 4096 4096 1x2H 22048 2048 1x2 21024 1024 1 29 512 512 1x2 256 256 1x2 2128 128 1 26 64 64 1x2 32 32 1x2 216 16 1 23 8 8 1x2 4 4 1x2 2 2 1x2 1 1 32767 L_1x 25 32768 This position is always 1 for negative numbers 43261 Publication 1790 UM002A EN P Configure PROFIBUS RTD Resistance Modules 1790P T4R0 Configure RTD Resistance Modules Using the SST PROFIBUS Configuration Tool Appendix C Module Configuration for PROFIBUS After installation of the RTD resistance module you must configure it for operation usually by u
5. E 5 5 gt Monitor 85 Current Value Input Value 0 850 0 Input Value 1 525 0 Input Value 2 525 0 Input Value 3 525 0 Status 80 Alarm State Status 1 Alarm State Status 2 Alarm State Status 3 Alarm State Deg C 10Hz 100 Pt 385 Ohms 100 milli Ohms 100 milli Ohms 100 milli Enable Temp Units Notch Filter 80 1 2 3 Autobaud FEET FI EESTI On this screen you see all the parameters for the module These include Autobaud RTD Input value combined temperature units filter frequency module status and Input RTD resistance type Publication 1790 UM002A EN P 3 12 Module Data Status and Channel Configuration for DeviceNet Publication 1790 UM002A EN P Module configuration parameters include Temperature Units Notch Filter frequency RTD resistance Input type and Autobaud 124 17900 4 0 4RTD x1 General Parameters 1 0 Data EDS File Select the parameter that you want to configure and initiate an action using the toolbar Groups R A gt Monitor p el Parameter Current Value Input Value 0 00 Input Value 1 00 Input Value 2 0 0 Input Value 3 00 Status 0 Good Status 1 Good Status 2 Good Status 3 Good LIII Select the desired temperature units in degrees C or F and notch a a a a a a a a filter frequency ALL four channels will be
6. IMPORTANT This module does not support any expansion modules Publication 1790 UM002A EN P A 4 Specifications RTD Resistance Specifications Publication 1790 UM002A EN P RTD resistance Specifications Inputs per module 4 channel RTD Resistance Input Input Range 1 625 Sensors Supported Sensor Type Degree Counts Resolution Resistance 100mO 1 to 6250 10 to 6250 100m Resistance 10m 1103270 100 to 32700 10 100ohm Pt o 0 00385 200 to 850 C 2000 to 850010 1 200ohm Pt o 0 00385 200 to 850 2000 to 850010 1 500ohm 0 00385 200 to 650 2000 to 650010 1 100ohm Pt o 0 003916 200 to 640 C 2000 to 640010 1 200ohm 0 003916 200 to 640 C 2000 to 640010 1 500ohm Pt o 0 003916 200 to 640 2000 to 640010 1 100ohm Nickel 60 to 250 C 600 2500 0 1 C 120ohm Nickel 80 to 260 80010 2600 0 1 C 200ohm Nickel 60 to 250 C 600 2500 0 1 C 500ohm Nickel 60 to 250 60010 2500 0 1 C Resolution 16 bits across 625ohms 0 1 C bit or 0 1 F bit RTD Sensors 20bit Sigma Delta modulation converter Data Format 16 bit Integer 25 compliment Module Scan Time 8ms channel Notch Filter 60Hz Overall accuracy 0 2 Full scale 0 C 55 C Settable Notch Filter 10Hz default 25Hz 50Hz 60Hz 100Hz 250Hz 500Hz Open Wire Detection Out
7. each of the mounting screws Installation and Wiring 2 7 5 Replace the block on the panel and place a screw through each of the two mounting holes Tighten the screws until the block is firmly in place CompactBlock ish Expansion B Cover 00009999 0000009 43242 act DIN Rail Mounting 1 Hook the top slot of the block over the DIN Rail 2 Pull down on the locking lever while pressing the block against the rail Locking Lever 2 43243 3 Push up on the locking lever to secure the block to the rail when the block is flush against the rail Publication 1790 UM002A EN P 2 8 Installation and Wiring Publication 1790 UM002A EN P Connect the DeviceNet Cable to the 1790D 4RO T4RO Base Block Follow these procedures when connecting the DeviceNet cable to the base block The required DeviceNet connector is not supplied with the block you must purchase it separately There are three types of connectors that you can order directly from Rockwell Automation or your local distributor 1799 DNETCON 5 position open style connector 1799 DNETSCON 5 position open style connector with locking screws 1799 DNC5MMS 5 position open style to 5 pin micro male connector with locking screws WARNING If you connect or disconnect the DeviceNet cable with power applied to this module or any device on the network an electrical arc can occur This coul
8. 10 connections excitation 1 5 return 1 5 sense 1 5 cut off frequency definition G 1 D data configuration for DeviceNet 3 1 data format 3 3 Publication 1790 UM002A EN P May 2002 2 Index data word definition G 1 dB definition G 1 decibel See dB definition of terms G 1 determining module update time 3 9 DeviceNet cable connecting 2 9 DeviceNet RTD resistance module 3 9 configure using RSNetWorx 3 10 DeviceNet specifications A 2 diagnostic features general 1 4 diagnostics and troubleshooting 4 1 channel diagnostics 4 3 module operation vs channel operation 4 2 power up diagnostics 4 3 safety considerations 4 1 diagnostics and troubleshootings channel LED indicator operation 4 5 differential mode rejection See normal mode rejection digital filter definition G 1 DIN rail mounting 2 8 E effective resolution 3 8 definition G 2 number of significant bits 3 8 electrical noise 2 5 EMC Directive 2 1 environmental specifications A 1 excitation connections 1 5 excitation current 1 5 definition G 2 F fault condition at power up 1 4 field wiring connections 2 12 filter definition G 2 filter frequency 3 4 3 6 3 8 and channel cutoff frequency 3 6 and channel step response 3 5 Publication 1790 UM002A EN P 2002 and noise rejection 3 4 definition G 2 frequency response graphs 3 7 frequency See filter frequency full scale definition G 2 full scale range definition
9. 4 0 Eg General Modules SLC Address Std Prms Est Prms Diagnostics Select the temperature units Watchdog Time Basis 10ms Module Data Type degrees C or F All four channels will be Filter Cutoff ahrenheit Type Ch Resistance 100m Ohm C CO 60 CO Type Ch1 Resistance 100m Ohm configured RTD Type Ch2 Resistance 100m Ohm identically RTD Type Ch3 Resistance 100m Ohm Edit Hex Details Defaults Rockwell Automation 1790P T4R0 Lx General Modules SLC Address Std Prms Ext Prms Diagnostics Select the filter cutoff frequency desired All four channels will be configured identically Name Watchdog Time Basis Module Data Type Filter Cutoff Type ChO Type Ch1 Type Ch2 Type Ch3 i 60 Co CO Rockwell Automation 1790P T4R0 Lx General Modules SLC Address Std Prms Ext Prms Diagnostics Select the RTD Name Watchdog Time Basis C resistance input type Module Data Type Resistance 10m Ohm for each channel Filter Cutoff 100 Ohm 0 00385 RTD 0 from the dropdown list Type Ch1 RTD Type Ch2 Type Ch3 d CO Co CO 10 When configuration is complete click the OK button to close the module properties screen Save the Configuration To close the configuration 1 Choose File gt Save As 2 Specify
10. 60 to 250 C 600 to 2500 760 10 4820 1200 Nickel 80 to 260 800 to 2600 1120 to 5000 200 Nickel 60C to 250 C 600 to 2500 760 to 4820 500 Nickel 60 to 250 C 600 to 2500 760 to 4820 Table 3 4 Resistance Data Format Data Format Resistance Input Range Engineering Units x1 Resistance 100mQ 1 to 6250 10 to 6250 Resistance 10 1 to 3270 100 to 32700 Publication 1790 UM002A EN P 3 4 Module Data Status and Channel Configuration for DeviceNet Filter Frequency Publication 1790 UM002A EN P The module scales input data to the actual temperature values for the selected RTD type per RTD standard It expresses temperatures in 0 1 degree units either degrees C or degrees F depending on which temperature scale is selected For resistance inputs the module expresses resistance 0 10 units for the 100mQ scale and in 0 010 units for the 10mQ scale Negative temperatures are returned in 16 bit two s complement binary format See Appendix B for a detailed explanation of two s complement binary numbers The module supports filter selections corresponding to filter frequencies of 10Hz 25Hz 50 Hz 60 Hz 100 Hz 250 Hz and 500 Hz Your filter frequency selection is determined by the desired range for the input type and the required effective resolution which indicates the number of bits in the input data that do not vary due to noise Also consider the required module update ti
11. CHO_A Sense Sense CHO_B COM 43252 4 Wire RTD Configuration Leave this sensor wire open O RTD EXC a RTD x m oO Cable Shield to Ground CHO_A CHO_B Return oe COM 43253 Wiring Resistance Devices Potentiometers Potentiometer wiring requires the same type of cable as that for the RTDs Potentiometers can be connected to the module as a 2 wire or 3 wire connection as shown in the following figure Publication 1790 UM002A EN P 2 16 Installation and Wiring 2 Wire Potentiometer Interconnection Potentiometer Add Jumper Cable Shield to Ground RTD EXC CHO A lt LLL LLL CHO B COM Add Jumper Cable Shield to Ground RTD EXC Potentiometer Return 43254 The potentiometer wiper arm can be connected to either the EXC or return terminal depending on gt whether you want increasing or decreasing resistance 3 Wire Potentiometer Interconnection Cable Shield to Ground RTD EX CHO A I C Potentiometer COM Run Return and sense wires from the module to potentiometer terminal and tie terminal to one point Cable Shield to Ground RTD EXC ZN CHO A CHO B COM Run Return and sense wires
12. PFB ASA MASTER Rev 1 3 5136 PFB PCI MASTER Rev 1 2 J S136 MASTER Rev 1 3 SST PFB CLX MASTER Rev 1 0 SST PFB PCMCIA MASTER Rev 1 4 SST PFD PLCS MASTER Rev 1 4 J SST PFB REL MASTER Rev 1 4 082 SST PFB SLC MASTER Rev 1 4 wy CS E Gg Slaves nnd aii Genera Modes SLC Address Std Pime Ext Diagnostics Station number Y790P T4RO 1 001 TAN EIS ATSTARO ged 1730P T470 VI 001 Dick Sa Common Pocta tre Teve 0 should be set 1790P TGBVEV 7 001 E 1790P TNOC2 V1 001 E 8 1730P TN4CO 7001 Deere 1790P TNAVO V1 001 1790P TNOV2 V1 001 8 gn SST e UCS Staion 5136PBMS Station Number Device Id GSD File Vendor Model OOS 1730648009 Rockwell Automation 1797480 Highlight and drag the slave device to the Network pane Ready CONN Astor A SKE MW SY Untied SST Prob CArushor BS 8 Click the SLC address tab for data size information and to set the I O data type For this example we choose I Type Input Image in the processor Module Configuration for PROFIBUS 6 5 General Modules SLC Address sta Ext Pms Diagnostics rl IE 4 The 1790P TARO Configured Data Areas The produced 5 High Byte 5 module produces 5 1000 InSwords 17902 14803 words will appear words of data Offset in the processor input data table
13. Size and Terminal Screw Torque Wire Type Wire Size Terminal Screw Retaining Screw Torque Torque Solid Cu 90 C 194 F 14 to 22 AWG 0 68Nm 6in lbs 0 46 Nm 4 1 in Ibs Stranded 90 194 F 16 to 22 AWG 0 68Nm 6in lbs 0 46 Nm 4 1 in Ibs Wiring the Modules ATTENTION To prevent shock hazard care should be taken when wiring the module to analog signal sources Before wiring any module disconnect power from the system power supply and from any other source to the module After the module is properly installed follow the wiring procedure below and the RTD and potentiometer wiring diagrams on pages 2 15 through 2 16 To ensure proper operation and high immunity to electrical noise always use Belden shielded twisted pair or equivalent wire Cut foil shield and drain wire signal wire signal wire signal wire signal wire drain wire 11 shield _ Cut foil shield pf and drain wire signal wire signal wire signal wire doen drain wire foil shield signal wires 3 Publication 1790 UM002A EN P 2 14 Installation and Wiring To wire your module follow these steps 1 At each end of the cable strip some casing to expose the individual wires Trim the signal wires to 2 inch 5 cm lengths Strip about 3 16 inch 5 mm of insulation away to expose the end of the wire ATTENTION QW Be careful when stripping wires Wire fragments that f
14. all necessary information procedure step illustration feature is provided Tu example guideline other explanation definition Technical Accuracy 1 2 3 Can we be more accurate all provided information is correct text illustration Clarity 1 2 3 How can we make things clearer all provided information is easy to understand Other Comments You can add additional comments on the back of this form Your Name Location Phone Your Title Function Would you like us to contact you regarding your comments No there is no need to contact me Yes please call me Yes please email me at Yes please contact me via Return this form to Allen Bradley Marketing Communications 1 Allen Bradley Dr Mayfield Hts OH 44124 9705 Phone 440 646 3176 Fax 440 646 3525 Email RADocumentComments ra rockwell com Publication ICCG 5 21 January 2001 PN 955107 82 Other Comments PLEASE FASTEN HERE DO NOT STAPLE PLEASE FOLD HERE BUSINESS REPLY MAIL FIRST CLASS MAIL PERMIT NO 18235 CLEVELAND OH POSTAGE WILL BE PAID BY THE ADDRESSEE Allen Bradley BELIANCE M ELECTRIC SOFTWARE ROCKWELL ES Roci ell Automation 1 ALLEN BRADLEY DR MAYFIELD HEIGHTS OH 44124 9705 NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES PLEASE REMOVE Numbers 17900 480 general description 1 1 hardware features 1 3 power requirements 2 2 1790D T4R0 general description 1 1 har
15. during normal channel operation The LEDs indicate both status and power See Chapter 4 Diagnostics and Troublesbooting for details on power up and channel diagnostics System Overview The modules communicate to the controller or network scanner via the DeviceNet or PROFIBUS network The modules also receive 24V dc power through DeviceNet An external 24V dc auxiliary source is required to power the RTD resistance channels System Operation At power up the module performs a check of its internal circuits memory and basic functions If no faults are found during power up diagnostics the module status LED is turned on green Publication 1790 UM002A EN P Overview 1 5 Once a channel is properly configured and enabled the module continuously converts the RTD or resistance input to a value within the range selected for that channel Each time the module reads an input channel it tests the data for a fault over or under range or open circuit condition If it detects a fault the module sets a unique bit in the channel status word See Input Data File on page 3 2 The module sends two s compliment binary converted RTD resistance data out over the network See Appendix B for a description of two s compliment binary numbers Module Operation DeviceNet Example As shown in the block diagram below each input channel of the module consists of an RTD resistance connection that accepts excitation current a sense connection t
16. following table lists the RTD types that you can use with the module including their temperature range effective resolution and accuracy Table 1 1 RTD Specifications RTD Type Temperature Scaling Resolution Accuracy Range Counts 0 to 55 100ohm Pt o 0 00385 200 850 2000 to 8500 0 1 2 1 200ohm 0 00385 200 850 2000 8500 0 1 C 2 1 500ohm 0 00385 200 650 2000 6500 0 1 C 1 7 100ohm Pt o 0 003916 200 640 2000 to 6400 0 1 C 1 68 C 200ohm Pt o 0 003916 200 64090 2000 6400 0 1 C 1 68 C 500ohm Pt o 0 003916 200 640 2000 6400 0 1 C 1 68 C 100ohm Nickel 60 to 250 600 to 2500 C 0 1 0 62 120ohm Nickel 80 to 260 C 800 to 2600 0 1 0 68 200ohm Nickel 60C to 250 C 600 to 2500 0 1 1 62 500ohm Nickel 60 to 250 600 to 2500 0 1 C 0 62 C Filter set for 10 Hz3 Mogule only Publication 1790 UM002A EN P Overview 1 3 Resister Device Compatibility The following table lists the specifications for the resistance devices that you can use with the module Table 1 2 Resistance Device Specifications Resistance Type Range Scaling Resolution Accuracy 0 to 55 Counts Resistance 100mQ 1 to 6500 10106250 100 41 250 Resistance 10 1 to 327Q 100 to 3
17. from the module to potentiometer terminal and tie terminal to one point Publication 1790 UM002A EN P Installation and Wiring 2 17 Wiring the Terminal Blocks The following figures show how to wire the terminal blocks 1790D 4R0 RTD Input Module D Shell Wiring 24V NC NC CH B NC 2 24V 24V NC CH NC 2 _ GND NC GND NC NC COM COM COM COM COM COM Wire pins 17 18 19 to Field Power 4 24V dc Wire pins 35 36 37 to Field Power GND 43256 1790D T4R0 and 179P T4RO RTD Input Module D Shell Wiring 24 CH2A NC CHO A COM CH3 A NC NC 000 00006 GND CH2 COM NC CHO B OCH3B NC NC Publication 1790 UM002A EN P 2 18 Installation and Wiring Chapter Summary In this chapter you learned how to install and wire your modules See Chapter 3 to learn about module data status and channel configuration with DeviceNet Publication 1790 UM002A EN P Chapter J Module Memory Map Input Image File Accessing Input Image File Data Module Data Status and Channel Configuration for DeviceNet After installation of the RTD resistance input module you must con
18. normal differential operation cut off frequency The frequency at which the input signal is attenuated 3 dB by a digital filter Frequency components of the input signal that are below the cut off frequency are passed with under 3 dB of attenuation for low pass filters data word A 16 bit integer that represents the value of the input channel The channel data word is valid only when the channel is enabled and there are no channel errors When the channel is disabled the channel data word is cleared 0 dB decibel A logarithmic measure of the ratio of two signal levels digital filter A low pass filter incorporated into the A D converter The digital filter provides very steep roll off above it s cut off frequency which provides high frequency noise rejection Publication 1790 UM002A EN P Publication 1790 UM002A EN P effective resolution The number of bits in a channel configuration word that do not vary due to noise excitation current A user selectable current that the module sends through the input device to produce an analog signal that the module can process and convert to temperature RTD or resistance in ohms resistance device filter A device that passes a signal or range of signals and eliminates all others filter frequency The user selectable frequency for a digital filter full scale The magnitude of input over which normal operation is permitted full scale range The differenc
19. opposite end of the cable You can only ground one end at a time Refer to Industrial Automation Wiring and Grounding Guidelines Allen Bradley publication 1770 4 1 for additional information Publication 1790 UM002A EN P 2 12 Installation and Wiring Publication 1790 UM002A EN P RTD Wiring Considerations Because the operating principle of the RTD module is based on the measurement of resistance take special care when selecting your input cable For 2 wire or 3 wire configurations select a cable that has a consistent impedance throughout its entire length Cable specifications are noted below Table 2 5 Cable Specifications Description Belden 9501 Belden 9533 Belden 83503 When used For 2 wire RTDs For 3 wire RTDs For 3 wire RTDs and potentiometers potentiometers potentiometers Long Short runs less than runs greater than 100 100 feet and normal feet or high humidity humidity levels levels Conductors 2 24 AWG tinned 3 24 AWG tinned 3 24 AWG tinned copper 7 x 32 copper 7 x 32 copper 7 x 32 Shield Beldfoil aluminum Beldfoil aluminum Beldfoil aluminum polyester shield with polyester shield with polyester shield with copper drain wire copper drain wire tinned drain wire Insulation PVC S R PVC Teflon Jacket Chrome PVC Chrome PVC Red Teflon Agency Approvals NEC Type CM NEC Type CM NEC Art 800 Type CMP Temperature Rating 80 C 80 C 200 C IMPORTANT T
20. resistance module with RSNetWorx for DeviceNet version 3 00 or later NOTE Refer to Appendix C to configure the 1790P T4RO PROFIBUS module Publication 1790 UM002A EN P 3 10 Module Data Status and Channel Configuration for DeviceNet Configure DeviceNet Following the steps below to configure 1790D 4R0 T4RO RTD resistance RTD Resistance modules Modules Using RSNetWorx 2 Using the selections on the left of the window below construct you system If your network is up just click on the Online Browse button 1 Open RSNetWorx for DeviceNet 2 DeviceNet RSNetWorx for DeviceNet BoE Eile Edit View Network Device Diagnostics Tools Help mH jals wals amz 1770 KFD a RS232 Interface r 1747 SDN Scanner EMG DeviceNet EMG Categor sO Drive Barcode Scanner 7 Communication Adapter 2 DPI to DeviceNet o0 62 Module 2 DeviceNet to SCANport 2 Dodge EZLINK General Purpose Discrete 1 0 2 Generic Device 2 Human Machine Interface Inductive Proximity Switch Limit Switch 2 Motor Overload Photoelectric Sensor Rockwell Automation miscellaneous 7 SCANport Adapter Smart MCC 2 Specialty 1 0 E E E E Vendor E E E Online Browse Button Rockwell Automation Allen Bradley Rockwell Automation Dodge Rockwell Automation Electro Craft Rockwell Automation Reliance Elec
21. the node address the switches must be set between 64 and 99 Publication 1790 UM002A EN P 2 6 Installation and Wiring Mounting Publication 1790 UM002A EN P Set the Station Address on the 1790P T4R0 PROFIBUS DP Base Block To set the station address adjust the switches on the front of the base block The two switches are most significant digit MSD and least significant digit LSD The switches can be set between 00 and 99 The rotary switches are read at base block power up only NODE ADDRESS 18 Example Node o 2 O Addressissetat26 MOD NET ress is seta AAN 5 is MSD LSD 43230 Mount the Base Block You can mount the base block to a panel or DIN rail We recommend that you ground the panel or DIN rail before mounting the block IMPORTANT The RTD and thermocouple base modules do not support any expansion blocks WARNING When used in a Class I Division 2 hazardous location this equipment must be mounted in a suitable enclosure with proper wiring method that complies with the governing electrical codes Panel Mounting 1 Place the block against the panel where you want to mount it 2 Gently pull and position the expansion cover to the left 3 Place a center punch nail or similar device through the mounting holes in the block and make two marks on the panel lower left and upper right corners of the module 4 Remove the block and drill two holes in the panel to accommodate
22. the contents of this copyrighted publication in whole or part without written permission of Rockwell Automation is prohibited Throughout this publication notes may be used to make you aware of safety considerations The following annotations and their accompanying statements help you to identify a potential hazard avoid a potential hazard and recognize the consequences of a potential hazard WARNING Identifies information about practices or circumstances that can cause an explosion in a hazardous environment which may lead to personal injury or death property damage or economic loss ATTENTION Identifies information about practices oro circumstances that can lead to personal injury or death property damage or economic loss RSNetWorx RSNetWorx for DeviceNet RSLogix 500 and RSLogix 5000 are trademarks of Rockwell Automation Belden is a trademark of Belden Inc IMPORTANT Rockwell Automation Support Identifies information that is critical for successful application and understanding of the product Before you contact Rockwell Automation for technical assistance we suggest you please review the troubleshooting information contained in this publication first If the problem persists call your local Rockwell Automation representative or contact Rockwell Automation in one of the following ways Phone United 1 440 646 5800 States Canada Outside You can access the phone numbe
23. 2002 Appendix B Positive Decimal Values B 1 Negative Decimal B 2 Appendix C Configure PROFIBUS RTD Resistance Modules eee ESAE AREE SEE OPE ERE C 1 Configure RTD Resistance Modules Using the SST PROFIBUS Configuration C 1 Save the Configuration 6 Download the C 7 SUMMA nes hed he eS de E bE eee C 9 Chapter 1 General Description Overview This chapter describes the four channel 1790D 4R0 T4RO RTD resistance Input module and explains how the controller reads resistance temperature detector RTD or direct resistance initiated analog input data from the module Included is a general description of hardware features an overview of module and system operation compatibility The 1790D A4RO T4RO 1790P T4RO module supports RTD and direct resistance signal measurement applications that require up to four channels The module digitally converts analog data and then stores the converted data in its image table The module supports connections from any combination of up to four input devices Each channel is individually configurable via software for 2 or 3 wire RTD or direct resistance input devices Channels are compatible with 4 wire sensors but the fourth sense wire is not used When configured for RTD input
24. 2700 100 10 65 Filter set for 10 Hz Module only Hardware Features The RTD resistance module contains either a fixed terminal block or a removable D sub connector providing connections for four 3 wire inputs for any combination of RTD and resistance input devices Channels are wired as differential inputs The illustration below shows the hardware features of the module 1790D 4R0 T4R0 DeviceNet Module Module and Network Status Indicators Node Address Switches Panel Mount Hole DIN Rail Slot 1 7 CompactBlegk 55 STATUS gINPUTS SOUTP UTS DC POWER DeviceNet Network RTD resistance Connection 4 Channel Indicators RTD resistance Connections 43223 D sub Connector shown Publication 1790 UM002A EN P Overview 1790P T4RO PROFIBUS DP Module Node Address Module and Network Switches Status Indicators Panel Mount LV DIN Rail Slot PROFIBUS Network Connector CompactBlock LDX 17900 8 8 0009 Q0 O eee RTD resistance e di cuu ces G RTD resistance Connections B PROFIBUS Terminal block Y Connector 18 Module Power Connector underneath module E General Diagnostic Features 31341 M Module network and channel LEDs help you identify the source of problems that may occur during power up or
25. 3 specifications 1 2 RTD compatibility 1 2 RTD wiring 2 13 RTD Resistance specifications A 4 S safety circuits 4 2 safety considerations 4 1 activating devices when troubleshooting 4 1 indicator lights 4 1 program alteration 4 2 safety circuits 4 2 stand clear of equipment 4 2 sampling time definition G 3 scan time G 2 selecting a location 2 5 sense connections 1 5 set node address 1790D 4RO T4RO 2 6 set station address PROFIBUS 2 7 specifications 1 2 A 1 DeviceNet A 2 environmental A 1 general A 3 PROFIBUS DP A 2 RTD resistance A 4 Publication 1790 UM002A EN P 2002 SST PROFIBUS configuration tool C 1 start up instructions 2 1 status configuration for DeviceNet 3 1 step response time definition G 3 support 3 contacting Rockwell Automation 4 5 system operation 1 4 system overview 1 4 module operation DeviceNet Example 1 5 system operation 1 4 system wiring guidelines 2 12 T terminal blocks wiring 2 18 terminal screw torque 2 14 troubleshooting safety considerations 4 1 two s complement binary numbers B 1 negative decimal values B 2 positive decimal values B 1 U under range flag bits 3 2 update time See channel update time update time See module update time W wire size 2 14 wiring 2 1 guidelines 2 12 module 2 14 modules 2 14 resistance devices potentiometers 2 16 routing considerations 2 5 RTD considerations 2 13 RTDs 2 15 terminal blocks 2 18 www rockwe
26. 64 maximum rotary switch type node address setting Communication rate 125Kbps 250Kbps 500Kbps auto baud rate selection Isolation Type test 1250Vac rms for 60 seconds between field power and DeviceNet 1 0 to logic Wiring Refer to publication DN 6 7 2 PROFIBUS DP PROFIBUS DP Specifications Specifications Network Protocol PROFIBUS DP EN50170 Communication of the slave with a Class 1 master Communication of the slave with a Class 2 master Redundancy Not supported Repeater Control Signal RS485 signal Implementation Type DPC31 Freeze Mode Supported Sync Mode Supported Auto Baud Rate Supported Fail Safe Mode Supported Station Type Slave FMS Support Not supported Indicators 1 red green module status 1 red green network status Number of nodes 100 maximum rotary switch type node address setting 0 99 Network Length Communication rate 9 6Kbps 2 1000m 3280ft 19 2Kbps 1000m 3280ft 45 45Kbps 1000m 3280 ft 93 75Kbps Q 1000m 3280ft 187 5Kbps 2 1000m 3280ft 500Kbps 400m 1312ft 1 5mbps 200m 656ft 3mbps 100m 328ft 6mbps 2 100m 328ft 12mbps 100m 328ft Isolation Publication 1790 UM002A EN P Type test 1250Vac rms for 60 seconds between field power and PROFIBUS 1 0 to logic General Specifications General Specifications Specifications 3 Wiring Category 21 Product Certif
27. AB Allen Bradley CompactBlock LDX RTD Resistance Input Module 1790D 4R0 1790D T4R0 1790P T4RO User Manual Automation Important User Information Because of the variety of uses for the products described in this publication those responsible for the application and use of these products must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements including any applicable laws regulations codes and standards In no event will Allen Bradley be responsible or liable for indirect or consequential damage resulting from the use or application of these products Any illustrations charts sample programs and layout examples shown in this publication are intended solely for purposes of example Since there are many variables and requirements associated with any particular installation Allen Bradley does not assume responsibility or liability to include intellectual property liability for actual use based upon the examples shown in this publication Allen Bradley publication SGI 1 1 Safety Guidelines for tbe Application Installation and Maintenance of Solid State Control available from your local Allen Bradley office describes some important differences between solid state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication Reproduction of
28. G 2 G general diagnostic features 1 4 general specifications A 3 grounding installation grounding 2 12 H hardware features 1 3 general diagnostic features 1 4 hazardous location considerations 2 3 heat considerations 2 5 important user information 2 imput image file data accessing 3 1 indicator lights 4 1 input data file 3 2 input data values 3 2 over range flag bits 3 3 under range flag bits 3 2 input data scaling definition G 2 input data values 3 2 input image definition G 2 installation getting started 2 1 heat and noise considerations 2 5 installation and wiring 2 1 before you begin 2 1 field wiring connections 2 12 RTD wiring 2 13 system wiring guidelines 2 12 wiring resistance devices potenti ometers 2 16 wiring RTDs 2 15 wiring terminal blocks 2 18 wiring the modules 2 14 general considerations 2 2 set station address PROFIBUS 2 7 hazardous location considerations 2 3 installing CompactBlock LDX 1 0 2 6 protecting circuit board 2 6 selecting a location 2 5 set node address DeviceNet 2 6 mounting 2 7 base block 2 7 connecting DeviceNet cable 2 9 connecting power to PROFIBUS block 2 11 connecting PROFIBUS DP connector 2 10 DIN rail mounting 2 8 panel mounting 2 7 power requirements 2 2 installing CompactBlock LDX 1 0 2 6 L LED 4 1 linearity error definition G 2 low voltage directive 2 1 LSB definition G 2 module error definition table 4 4 module memory map 3 1 module operation Dev
29. a file name and location to save your configuration 3 Click Save This saves your project as a pbc PROFIBUS configuration file Publication 1790 UM002A EN P Module Configuration for PROFIBUS 6 7 Download the To download the configuration Configuration 1 Verify that the processor is in Program Mode 2 Make sure the serial communication cable is connected between the PC comm port and the scanner serial port 3 Highlight Master in the Network pane 4 Right click to select Connect from the menu Or choose Edit gt Connect paulette pbe SST Profibus Configuration Eie E Help 9 95 9 air E gg Masters EH gn 557 513 PFB 104 MASTER Rev 1 2 5136 PFB ASA MASTER Rev 1 3 5136 PFB PCI MASTER Rev 1 2 38 5136 PFB MASTER Rev 1 3 ffl SST PFB CLX MASTER Rev 1 0 SST PFB PCHCIA MASTER Rev 1 4 SST PFB PLCS MASTER Rev 1 4 i SST PFB REL MASTER Rev 1 4 i SST PFB SLC MASTER Rev 1 4 E gn Slaves E Rockwell Automation 10 1790P T4RO V1 001 Lg 1790P T4TO VI 001 10 1790P T86V86 Vi 001 Highlight the Master and then right click to select Connect 10 1790P T86V0V 1 001 9 1790P TNOC2 V1 001 1790P TNACO V1 001 1790P TN4VO V1 001 1790P TNOV2 VI 001 wy Ucs 5136 PBMS 2l tha Sa Station Number Device Id GSD Fie Vendor Model EI 05 1790 4ROgsd Roc
30. agnetic Interference EMD improper grounding improper wiring connections and unauthorized tampering If you suspect a program has been altered check it against a previously saved master program Safety Circuits Circuits installed on the machine for safety reasons like over travel limit switches stop push buttons and interlocks should always be hard wired to the master control relay These devices must be wired in series so that when any one device opens the master control relay is de energized thereby removing power to the machine Never alter these circuits to defeat their function Serious injury or machine damage could result The module performs diagnostic operations at both the module level and the channel level Module level operations include functions such as power up configuration and communication with a controller Channel level operations describe channel related functions such as data conversion and over or under range detection Internal diagnostics are performed at both levels of operation When detected module error conditions are indicated by the module status LED Channel over range or under range conditions are reported in the module s input data table Power up Diagnostics Diagnostics and Troubleshooting 4 3 Power up diagnostics includes module status and network status Module Status At module power up a series of internal diagnostic tests are performed These diagnostic tests must be successful
31. all into a module could cause damage at power up At the module end of the cable twist the drain wire and foil shield together bend them away from the cable and apply shrink wrap Then earth ground via a panel or DIN rail mounting screw at the end of the module Keep the length of the drain wire as short at possible At the other end of the cable cut the drain wire and foil shield back to the cable and apply shrink wrap Connect the signal wires to the terminal block as described for each type of input See Wiring RTDs below or Wiring Resistance Devices Potentiometers on page 2 15 6 Connect the other end of the cable to the analog input device 7 Repeat steps 1 through 6 for each channel on the module Wiring RTDs Three types of RTDs can be connected to the module 2 wire RTD which is composed of an RTD EXC excitation lead wire and a RTN return lead wire 3 wire RTD which is composed of a Sense and 2 RTD lead wires RTD EXC and RTN 4 wire RTD which is composed of a Sense and 2 RTD lead wires Publication 1790 UM002A EN P RTD EXC and RTN The second sense wire from the 4 wire RTD is left open Installation and Wiring 2 15 2 Wire RTD Configuration Add Jumper Cable Shield to Ground RTD EXC dr CHO B Return COM 3 Wire RTD Configuration Cable Shield to Ground RTD EXC RTD EXC
32. ation Considerations This equipment is suitable for use in Class I Division 2 Groups A B C D or non hazardous locations only The following WARNING statement applies to use in hazardous locations WARNING EXPLOSION HAZARD Substitution of components may impair suitability for Class I Division 2 Do not replace components or disconnect equipment unless power has been switched off or the area is known to be non hazardous Do not connect or disconnect components unless power has been switched off or the area is known to be non hazardous This product must be installed in an enclosure All wiring must comply with N E C article 501 4 b 1 Pollution Degree 2 is an environment where normally only non conductive pollution occurs except that occasionally a temporary conductivity caused by condensation shall be expected Over Voltage Category Il is the load level section of the electrical distribution system At this level transient voltages are controlled and do not exceed the impulse voltage capability of the product s insulation 3 Pollution Degree 2 and Over Voltage Category are International Electrotechnical Commission IEC designations Installation and Wiring 2 3 ATTENTION Environment and Enclosure This equipment is intended for use in a Pollution Degree 2 industrial environment in overvoltage Category II applications as defined in IEC publication 60664 1 at altitudes up to 2000 me
33. cause internal damage and affect normal ATTENTION operation Follow these guidelines when you handle this equipment Touch a grounded object to discharge potential static Wear an approved grounding wriststrap Do not touch connectors or pins on component boards Do not touch circuit components inside the equipment If available use a static safe workstation When not in use store the equipment in appropriate static safe packaging If you insert or remove the module while power is on an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed or the area is nonhazardous before proceeding Selecting a Location Reducing Noise Most applications require installation in an industrial enclosure to reduce the effects of electrical interference RTD inputs are highly susceptible to electrical noise Electrical noise coupled to the RTD inputs will reduce the performance accuracy of the module Group your modules in the enclosure to minimize adverse effects from radiated electrical noise and heat Consider the following conditions when selecting a location for the module Position the module away from sources of electrical noise such as hard contact switches relays and AC motor drives away from modules which generate significant radiated heat In addition route shielded twisted pair wiring away from any high voltage I O wirin
34. ckaged Non operating Operating Altitude 2000m Vibration 124 10 500Hz EC60068 2 6 Test Fc Operating Shock Operating Non operating 109 309 IEC60068 2 27 Test Ea Unpackaged Shock Emissions Group 1 Class A CISPR 11 ESD Immunity 8kV air discharges IEC 61000 4 2 Radiated RF Immunity 10V m with 1kHz sine wave 8096AM from 80MHz to 1000MHz 10V m with 200Hz 5096 Pulse 100 900Mhz IEC 61000 4 3 EFT B Immunity 1kV 5kHz on power ports 2kV 5kHz on signal ports 2kV 5kHz on communications ports IEC 61000 4 4 Surge Transient Immunity 1kV line line DM and 2kV line earth CM on power ports 1kV line line DM and 2kV line earth CM on signal ports 2 line earth CM on shielded ports IEC 61000 4 5 Conducted RF Immunity 10Vrms with 1kHz sine wave 80 AM from 150kHzto 80MHz IEC 61000 4 6 Enclosure Type Rating None open style Mounting DIN rail or screw Dimensions 52 x 104 x 42mm 2 03 x 4 07 x 1 64in Weight 0 316 0 1kg Publication 1790 UM002A EN P A 2 Specifications DeviceNet Specification Value Specifications Network protocol 1 0 Slave messaging Poll command Bit Strobe command Cyclic command COS command Network length 500 meters maximum 125Kbps 100 meters maximum 500Kbps Indicators 1 red green module status 1 red green network status Number of nodes
35. configured identically Temp Units Notch Filter RTD Type 0 RTD Type 1 2 3 Autobaud Deg C 10Hz Deg F 10Hz Deg C 25Hz Deg F 25Hz Deg C 50Hz EX 1790D 4R0 4RTD In x General Parameters 0 Data EDS Fie Select the parameter that you want to configure and initiate action using the toolbar Groups fe 7 gt Monitor Current Value Select the RTD resistance input type for each channel from the dropdown list Select to have Autobaud either Enabled or Disabled Input Value 80 Input Value 1 Input Value 82 Input Value 3 Status 80 Status 1 Status 2 Status 3 Temp Units Notch Filter RTD Type 0 RTD Type 1 2 Type 3 Autobaud EX 17900 4 0 4RTD In General Parameters 1 0 Data EDS File Select the parameter that you want to configure and initiate an action using the toolbar 850 0 525 0 625 0 625 0 Alarm State Alarm State Alarm State Alarm State Deg C 10Hz 100 Pt 385 z 100 Pt 200 Pt 385 500 Pt 385 100 Pt 3916 200ohm Pt 3916 X HEI Groups fe gt Monitor Input Value 0 Input Value 1 Input Value 2 Input Value Status 0 Status tt Status 2 Status 3 Temp Units Notch Filter B B B D B 8 RTD Type 0 RTD Type 1 RTD Type 2 RTD Type 3 Autobaud Cur
36. d Ee 1790D 4R0 4RTD In x General Parameters 1 0 Data EDS Fie Select the parameter that you want to configure and initiate an action using the toolbar Monitor Groups Check TM A Parameter 1 0 Input Values Current Value 1 5 amp Input Value 0 850 0 2 6 Input Value 1 525 0 3 8 Input Value 2 5250 Click the Monitor buttor Open these Input Value 3 525 0 zj 1 0 Input Status folders 5 5 Status 0 Alarm State 68 Alarm State 7 amp Status 2 Alarm State 8 8 Statustt3 Alarm State No Group Specified Close this folder Publication 1790 UM002A EN P 3 14 Module Data Status and Channel Configuration for DeviceNet Chapter Summary In this chapter you learned how to setup and configure your module See Chapter 4 to learn how to troubleshoot using the module indicators Publication 1790 UM002A EN P Chapter Safety Considerations Diagnostics and Troubleshooting This chapter describes module troubleshooting containing information safety considerations when troubleshooting module vs channel operation the module s diagnostic features critical vs non critical errors module condition data contacting Rockwell Automation for assistance Safety considerations are an important element of proper troubleshooting procedures Actively thinking about the safety of you
37. d cause an explosion in hazardous location installations Be sure that power is removed or the area is nonhazardous before proceeding Connect the DeviceNet wiring drop line to one of the DeviceNet connectors as shown below A color coded wiring diagram is also printed next to the connector on the left side of the module SN N IS e CompactBlock LDX V Red Drain Shield MSD i 92009209 60900927 V Black H White S Can L Blue OOS OV RA Ve Red a5 Can_H White Wiring Diagram for em 1799 DNC5MMS 62 Drain Shield Wiring Diagram for 1799 DNETCON PACEM 43245 V Black Installation and Wiring 2 9 Connect the PROFIBUS DP Terminal Connector to the 1790P T4RO Base Block Follow these procedures to connect the PROFIBUS DP terminal connector to the base block WARNING If you connect or disconnect the PROFIBUS cable with power applied to this module or any device on the network an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed or the area is nonhazardous before proceeding The required PROFIBUS female 9 pin D sub connector is not supplied with the base block you must purchase it separately Before you connect female 9 pin D sub connector to the base block make sure it is wired correctly as shown in the follow
38. dA Ne ER ated ok e e S Re etg D 3 3 Filter sicir ebana atte iia E PE 3 4 Channel Step 3 5 Channel Cutoff 3 6 Effective 3 8 Determining Module Update 3 9 DeviceNet RTD Resistance Module 1790D 4RO TARO 3 9 Configure DeviceNet RTD Resistance Modules Using RSNetWorx eee 3 10 Chapter Sunma 3 oe ed dots uec e deo este 3 14 Chapter 4 Safety Considerations 4 1 Module Operation vs Channel Operation 4 2 Power up 4 3 Channel x cu vue e x 4 4 Channel LED Indicator LECHE 4 5 Contacting Rockwell 4 6 Chapter Summary a ced ed qoa rs Qo sente d od pde ed 4 6 Appendix A Environmental 5 1 DeviceNet 5 2 PROFIBUS DP 5 2 General 5 3 RTD Resistance 5 5 4 Publication 1790 UM002A EN P May 2002 Table of Contents ii Two s Complement Binary Numbers Module Configuration for PROFIBUS Publication 1790 UM002A EN P May
39. dule update time is defined as the time required for the module to sample and convert the input signals The module sequentially samples the channels in a continuous loop Module update time is dependent on the number of input channels and the input filter selection The fastest update time occurs with the 500Hz filter enabled The following table shows update times for all filter frequencies Table 3 8 Module Update Time Filter Module Update Time Frequency 10 Hz 2 2 seconds 25 Hz 840 milliseconds 50 Hz 420 milliseconds 60 Hz 348 milliseconds 100 Hz 224 milliseconds 250 Hz 88 milliseconds 500 Hz 48 milliseconds Configuring 1790D 4R0 T4RO RTD resistance modules is as easy pointing and clicking RSNetWorx lets you simply identify the network and configure the I O modules with easy to use Electronic Data Sheets EDS files just point to the field and click on your selection To obtain the EDS files you need to configure the modules go to the following website http www ab com networks eds EDS files for blocks with matching catalog numbers for D Shell and terminal block versions are the same Thus on the website or in RSNetWorx for DeviceNet there may be only one catalog number listed for both versions When using 3rd party configuration software simply load the EDS files into the software and follow the vendor s instructions The following example takes you through configuring your RTD
40. dware features 1 3 power requirements 2 2 1790P T4RO connecting power 2 11 general description 1 1 hardware features 1 4 power requirements 2 2 A A D definition G 1 A D converter 1 5 abbreviations G 1 activating devices when troubleshooting 4 1 addressing 3 1 attenuation 3 6 definition G 1 base block mounting 2 7 broken input detection 4 4 bus interface 1 4 C channel 1 5 definition G 1 channel configuration for DeviceNet 3 1 channel cutoff frequency 3 4 3 6 channel diagnostics 4 3 module error definition table 4 4 open wire detection 4 4 out of range detection 4 4 channel LED indicator operation 4 5 channel status LED 1 4 Index channel step response 3 4 3 5 channel update time 3 6 definition G 1 circuit board protecting 2 6 CMRR See common mode rejection ratio comments about manual 3 common mode 3 5 common mode rejection definition G 1 common mode rejection ratio definition G 1 common mode voltage definition G 1 common mode voltage range definition G 1 configuration 3 1 configuration for PROFIBUS RTD resistance modules C 1 using SST tool C 1 configure channel cutoff frequency 3 6 channel step response 3 5 data format 3 3 determining module update time 3 9 DeviceNet RTD resistance module 3 9 effective resolution 3 8 filter frequency 3 4 input data file 3 2 input image file data 3 1 module memory map 3 1 connecting DeviceNet cable 2 9 power to PROFIBUS block 2 11 PROFIBUS DP connector 2
41. e RTD uses the basic concept that the electrical resistances of metals increase with temperature When a small current is applied to the RTD it creates voltage that varies with temperature The module processes and converts this voltage into a temperature value sampling time The time required by the A D converter to sample an input channel step response time The time required for the channel data word signal to reach a specified percentage of its expected final value given a full scale step change in the input signal update time see module update time Publication 1790 UM002A EN P Notes Publication 1790 UM002A EN P How Are We Doing AB Your comments on our technical publications will help us serve you better in the future Thank you for taking the time to provide us feedback Ty You can complete this form and mail it back to us visit us online at www ab com manuals or email us at RADocumentComments ra rockwell com Pub Title Type CompactBlock LDX RTD Resistance Input Module Cat No 17900 0 Pub No 1790 UMO02A EN P Pub Date 2002 Part No 957657 66 1790P T4RO Please complete the sections below Where applicable rank the feature 1 needs improvement 2 satisfactory and 3 outstanding Overall Usefulness 1 2 3 How can we make this publication more useful for you C 1 2 3 Can we add more information to help you ompleteness
42. e between the maximum and minimum specified analog input values for a device input data scaling Data scaling that depends on the data format selected for a channel configuration word Scaling is selected to fit the temperature or voltage resolution for your application input image The input from the module to the controller The input image contains the module data words and status bits linearity error Any deviation of the converted input or actual output from a straight line of values representing the ideal analog input An analog input is composed of a series of input values corresponding to digital codes For an ideal analog input the values lie in a straight line spaced by inputs corresponding to 1 LSB Linearity is expressed in percent full scale input See the variation from the straight line due to linearity error exaggerated in the example below Actual Transfer Function 43262 LSB Least significant bit The LSB represents the smallest value within a string of bits For analog modules 16 bit two s complement binary codes are used in the I O image For analog inputs the LSB is defined as the rightmost bit of the 16 bit field bit 0 The weight of the LSB value is defined as the full scale range divided by the resolution module scan time same as module update time 6 3 module update time time required for the module to sample and convert the input signals of all enabled input channel
43. elow Table 3 1 Input Data Table Bit 0 RTD Input Data Channel 0 1 RTD Input Data Channel 1 7 RTD Input Data Channel 2 3 RTD Input Data Channel 3 4 Not Used 11 10 59 S8 Not Used 53 52 S1 SO Table 3 2 Input Data Table Word Decimal Bit Description Read Word 0 Bits 00 15 Channel 0 input data Read Word 1 Bits 00 15 Channel 1 input data 1 Read Word 2 Bits 00 15 Channel 2 input data Read Word 3 Bits 00 15 Channel 3 input data Underrange for individual channels Bit 00 corresponds to input channel 0 bit 01 corresponds to input channel 1 and so on Bits 00 03 When set 1 the input signal is below the input channel s minimum range Bits 04 07 Not used Set to 0 Read Word 4 gt Bits 08 11 Overrange for individual channels Bit 08 corresponds to input channel 0 bit 09 corresponds to input channel 1 and so on When set 1 the input signal is above the input channel s maximum range or open RTD is detected Bit 12 15 Not used Set to 0 Input Data Values Data words 0 through 3 correspond to channels 0 through 3 and contain the converted analog input data from the input device Under Range Flag Bits S0 to S3 Over range bits for channels 0 through 3 are contained in word 4 bits 0 3 When set 1 the under range flag bit indicates an temperature that is less than the minim
44. figure it for operation usually using the programming software compatible with the controller for example RSLogix 500 or RSLogix 5000 or scanner RSNetWorx for DeviceNet Once configuration is complete and reflected in ladder logic you will need to get the module up and running and then verify its operation This chapter includes information on the following module memory map accessing input image file data configuring channels running the module The module uses five input words for data and status bits input image Memory Map Word Woni Word 2 ae Word 3 Word 4 43258 ees AL AUREUM Input Image The input image file represents data words and status words Input words 0 through 3 hold the input data that represents the value of the analog inputs for channels 0 through 3 These data words are valid only when the channel is enabled and there are no errors Input word 4 holds status bits Five words of the processor input image table are reserved for the module s image data You can access the information in the input image file using the programming software configuration screen Publication 1790 UM002A EN P 3 2 Module Data Status and Channel Configuration for DeviceNet Input Data File Publication 1790 UM002A EN P The input data table lets you access RTD input module read data for use in the control program via word and bit access The data table structure is shown in the tables b
45. g Installation and Wiring 2 5 Protecting the Circuit Board from Contamination The printed circuit boards of analog modules must be protected from dirt oil moisture and other airborne contaminants To protect these boards the system must be installed in an enclosure suitable for the environment The interior of the enclosure should be kept clean and the enclosure door should be kept closed whenever possible Installing CompactBlock LDX 1 0 Follow these steps to install the block 1 Set the node address on the base block 2 Mount the base block 3 Wire the terminal blocks 4 Connect the network cable These steps are explained in detail in the following procedures for both the 1790D 4RO T4RO DeviceNet and 1790P T4RO PROFIBUS DP modules Set the Node Address on the DeviceNet 17900 4 0 4 0 Base Block Each base block comes with its internal program set for node address 63 To reset the node address adjust the switches on the front of the block The two switches are most significant digit MSD and least significant digit LSD The switches can be set between 00 and 63 The rotary switches are read at block power up only Switch settings between 64 and 99 cause the block to use the last valid node address stored internally NODE ADDRESS Example Node Address is set at 26 The node address may also be set through RSNetWorx for DeviceNet or a similar configuration tool When software configuration is used for
46. g away from any other wiring and as far as possible from sources of electrical noise such as motors transformers conductors and ac devices As a general rule allow at least 15 2 cm 6 in of separation for every 120V of power Routing field wiring in a grounded conduit can reduce electrical noise If field wiring must cross ac or power cables ensure that they cross at right angles To ensure optimum accuracy limit overall cable impedance by keeping your cable as short as possible Locate the I O system as close to your sensors or actuators as your application will permit Tighten terminal screws with care Excessive tightening can strip screw Shield Grounding Use Belden shielded twisted pair wire to ensure proper operation and high immunity to electrical noise Refer to the following table and the RTD Wiring Considerations below Table 2 4 Belden Shielded Wiring Configuration Recommended Cable 2 wire Belden 9501 or equivalent 3 wire Belden 9533 or equivalent less than 30 48 m 100ft 3 wire Belden 83503 or equivalent greater than 30 48 m 100 ft or high humidity conditions 1 For additional information see Table 2 5 Under normal conditions the drain wire and shield junction should be connected to earth ground via a panel or DIN rail mounting screw at the module end Keep shield connection to ground as short as possible If noise persists for a device try grounding the
47. gt Library to open the pane If the on line Browse pane is closed choose 4 View gt On line to open the pane You should now be ready to set up your system 5 Expand the Master and Slaves folders in the PROFIBUS Device pane Expand Master ses folder 5136 PFB 104 MASTER Rev 1 2 5135 45 MASTER Rev 1 3 B 5136 PFB PCI MASTER Rev 1 2 18 5136 PFB VME MASTER Rev 1 3 SST PFB CLX MASTER Rev 1 0 88 SST PFB PCMCIA MASTER Rev 1 4 A SST PFB PLCS MASTER Rev 1 4 E d SI SST PFB REL MASTER Rev 1 4 olave bat Choose Master for your folder network drag and drop to 0 1790P T4TO V1 001 Network pane 1790P TNOC2 V1 001 1790 V1 001 18 1790P TNAVO V1 001 9 1730P TNOV2 V1 001 Ha SST PE Al fy a Station Number Device ld GSD File Vendor Model 5 088 1790P TN4COgsd Rockwell Automation 1790P TNACO Fen Nm 6 Choose the Master device for your network drag and drop the device to the Network pane From the following window SST SST PFB SLC MASTER General Parameters COM Choose the Master Station number Station Publication 1790 UM002A EN P Module Configuration for PROFIBUS 6 3 SST SST PFB SLC MASTER General Parameters Port Choose the Master Connection communication parameters Baud Rate 115 200 bps Y
48. hat detects lead wire resistance and a return connection The signals are multiplexed to an A D converter that reads the RTD or resistance value and the lead wire resistance Optical VAI VA1 isolation Vec e EXC Input Current Exco CHO O e ry Multiplexer A D SENSEO Micro Transmit gt 2 Controller Network RINO COM TA eni AIN v Vref VREF Ec VA3 Channel Select LU VDC Auxiliary Analog n 24Vde Power gt VM GND Power Supply Power DeviceNet A GND 24Vdc Supply GND Power E 2 Channels 1 through 3 same as 3 channel 0 above From the readings taken by the converter the module sends RTD or resistance data through the microcontroller to the DeviceNet network The PROFIBUS block diagram is similar Publication 1790 UM002A EN P 1 6 Overview Chapter Summary In this chapter you learned about the 1790D 4R0 T4RO and 1790P TR O RTD resistance modules See Chapter 2 to learn how to install and wire the modules Publication 1790 UM002A EN P Chapter 2 Before You Begin Power Requirements Installation and Wiring This chapter tells you how to determine the power requirements f
49. he RTD module requires three wires to compensate for lead resistance error We recommend that you do not use 2 wire RTDs if long cable runs are required as it reduces the accuracy of the system However if a two wire configuration is required reduce the effect of the lead wire resistance by using a lower gauge wire for the cable for example use AWG 16 instead of AWG 24 The module s terminal block accepts two AWG 14 gauge wires When using a 3 wire configuration the module compensates for resistance error due to lead wire length For example in a 3 wire configuration the module reads the resistance due to the length of one of the wires and assumes that the resistance of the other wire is equal If the resistances of the individual lead wires are much different an error may exist The closer the resistance values are to each other the greater the amount of error that is eliminated IMPORTANT To ensure temperature or resistance value accuracy the resistance difference of the cable lead wires must be equal to or less than 0 010 Installation and Wiring 2 13 To insure that the lead values match as closely as possible Keep lead resistance as small as possible Use quality cable that has a small tolerance impedance rating Use a heavy gauge lead wire which has less resistance per foot Wire Size and Terminal Screw Torque Each terminal accepts up to two wires with the following restrictions Table 2 6 Wire
50. ications when product or packaging is marked c UL us UL Listed for Class Division 2 Group A B C D Hazardous Locations certified for U S and Canada CE European Union 89 336 EEC EMC Directive compliant with EN 50081 2 Industrial Emissions EN 50082 2 Industrial Immunity EN61326 Meas Control Lab Industrial Requirements EN 61000 6 2 Industrial Immunity C Tick Australian Radiocommunications Act compliant with AS NZS 2064 Industrial Emissions ODVA ODVA conformance tested to ODVA DeviceNet specifications DeviceNet Power Supply voltage 24V dc nominal Voltage range 11 28 8V dc Power dissipation 1 2W maximum 28 8V dc PROFIBUS Power Supply voltage 24V dc nominal Voltage range 19 2 28 8V dc Power dissipation 2W maximum 28 8V dc Field Power Supply Voltage 24Vdc nominal Voltage Range 21 6 26 4V dc 41096 Power Dissipation 1 5W maximum 26 4V dc Isolation 1 0 to logic photocoupler isolation Isolation voltage Type Test 1250 ac rms for 60 seconds DeviceNet to logic non isolated Field power non isolated Indicators 4 red green 1 0 status Wiring 1790D 4R0 37 D Shell connector 1790D T4RO Terminal block connector screw torque 7 inch pounds maximum 1 Refer to publication 1770 4 1 Programmable Controller Wiring and Grounding Guidelines See the Product Certification link at www ab com for Declarations of Conformity Certificates and other certification details
51. iceNet Example 1 5 module operation vs channel operation 4 2 module scan time definition G 2 module status 4 3 module update time 3 9 definition G 3 mounting DIN rail 2 8 panel 2 7 multiplexer definition G 3 multiplexing 1 5 Index 3 negative decimal values B 2 network status 4 3 noise 3 5 noise rejection 3 4 normal mode rejection definition G 3 number of significant bits 3 8 definition G 3 0 open wire detection 4 4 operation system 1 4 out of range detection 4 4 overall accuracy definition G 3 over range flag bits 3 3 overview 1 1 general description 1 1 resister device compatibility 1 3 RTD compatibility 1 2 P panel mounting 2 7 positive decimal values B 1 potentiometers wiring 2 16 power requirements 2 2 17900 480 2 2 17900 4 2 2 1790P T4RO 2 2 power up diagnostics 4 3 module status 4 3 network status 4 3 power up sequence 1 4 PROFIBUS configuration C 1 downloading C 6 RTD resistance module C 1 saving C 6 using SST configuration tool C 1 PROFIBUS DP connector connecting 2 10 PROFIBUS DP specifications A 2 PROFIBUS RTD resistance module configuration C 1 program alteration 4 2 programming software 3 1 Publication 1790 UM002A EN P May 2002 4 Index protecting circuit board 2 6 R register configuration 3 1 resistance devices wiring 2 16 resister device compatibility 1 3 resolution definition G 3 return connections 1 5 Rockwell Automation support 3 RTD definition G
52. ing table Table 2 3 Wiring Descriptions for 9 Pin D Sub Connector Pin Number Name Description 1 shield Shield Protective Ground 2 M24V Minus 24V Output Voltage 3 RxD TxD P Receive Transmit Data P 4 CNTR P Control p 5 DGND Data Ground 6 VP Voltage Plus 7 P24V Plus 24V Output Voltage 8 RxD TxD N Receive Transmit Data N 9 CNTR N Control N Publication 1790 UM002A EN P 2 10 Installation and Wiring Once you have properly wired the connector attach it to the base block as shown below Use the locking screws on the connector to fasten it to the base block NODE ADDRESS CompactBlock LDX cu 1790D 8BV8V 8 INPUTS BOUTPUTS DC POWER Module Power Connector 9 underneath module DC OUTPUTS PROFIBUS Connector Green GRD Black COM Red 24V dc Connect Power to the 1790P T4R0 Block To apply power to the block refer to the above illustration Publication 1790 UM002A EN P Installation and Wiring 2 11 Field Wiring System Wiring Guidelines Connections Consider the following when wiring your system General This product is intended to be mounted to a well grounded mounting surface such as a metal panel Additional grounding connections from the module s mounting tabs or DIN rail Gf used are not required unless the mounting surface cannot be grounded Route field wirin
53. ise transducer circuit noise and process variable irregularities can also be sources of common mode noise Another module characteristic determined by filter frequency is channel step response as shown in the following table The step response is the time required for the analog input signal to reach 100 percent of its expected final value given a full scale step change in the input signal Thus if an input signal changes faster than the channel step response a portion of that signal will be attenuated by the channel filter The channel step response is calculated by a settling time of 3 x 1 filter frequency Table 3 5 Filter Frequency vs Channel Step Response Filter Frequency Step Response 10 Hz 300 ms 25 Hz 120 ms 50 Hz 60 ms 60 Hz 50 ms 100 Hz 30 ms 250 Hz 12 ms 500 Hz 6 ms Publication 1790 UM002A EN P 3 6 Module Data Status and Channel Configuration for DeviceNet Channel Cutoff Frequency Publication 1790 UM002A EN P The channel cutoff frequency C3 dB is the point on the input channel frequency response curve where frequency components of the input signal are passed with 3 dB of attenuation The following table shows cutoff frequencies for the supported filters Table 3 6 Filter Frequency vs Channel Cutoff Frequency Filter Frequency Channel Cutoff Frequency 10 Hz 2 62 Hz 25 Hz 6 55 Hz 50 Hz 13 1 Hz 60 Hz 15 7 Hz 100 Hz 26 2 Hz 250 Hz 65 5 Hz 500 Hz 131 Hz
54. kwell Automation 1790P T4RO Comnet to card NUM You may be prompted with a message indicating a configuration mismatch between what is in the scanner and your current PROFIBUS project In this case select Yes to retain your configuration Phe gt This configuration does not match the configuration found on scanner SST PFB SLC ui Do you want to retain this configuration Click NO to upload configuration from scanner Any configuration mismatches display for the Master status B PROFIBUS DP Configuration Mismatch SST SLC MASTER 6 039 1730P T4RO Publication 1790 UM002A EN P C 8 Module Configuration for PROFIBUS Publication 1790 UM002A EN P 5 Load the configuration to the Master through one of the following methods Right click on the Master and select Load Configuration from the menu PRDFIBUS DP E PFB SLC MASTER 9 039 _1790 Export Binary Addressing Disconnect Eirmware Version Load Configuration Offline Delete Rename Properties Or Select the Load configuration icon in the toolbar If the scanner is online the following message displays Card is online Do you want to load configuration Select Yes to load your new configuration You may receive this message 4 Minimum cycle time for the master is too low to monitor DP network It might cause unrecoverab
55. le serial communication failure lt is recommended you set Min Cycle Time at least twice longer than Typical Scan Time before you connect This is only warning that if your Min Cycle Time is not twice as long as the Scan Time then you may lose serial communications This message can usually be ignored unless you require online monitoring The Master status now changes to the Configured Program Mode B 5 DP cf 000 Configured Program SST_PFB_SLC_MASTER 8 48 093 1790P T4RO Your scanner is now configured and ready 6 Turn the processor to Run mode Module Configuration for PROFIBUS 6 9 The Net LED on the RTD resistance module should turn solid green as should the Comm LED on the scanner The connection should report OK The master should now display B PROFIBUS DP EES 01000 Online Run All OK SST_PFB_SLC_MASTER 099 0K 1730P T4RO Publication 1790 UM002A EN P C 10 Module Configuration for PROFIBUS Summary This appendix illustrated how to configure your PROFIBUS RTD resistance module with the SST PROFIBUS Configuration tool For more information consult your PROFIBUS network documentation PROFIBUS scanner documentation and network configuration tool documentation Publication 1790 UM002A EN P Glossary The following terms and abbreviations are used throughout this manual For definitions of terms not listed here refer to Allen Bradley s Ind
56. llautomation com Power Control and Information Solutions Headquarters Americas Rockwell Automation 1201 South Second Street Milwaukee WI 53204 2496 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Europe Middle East Africa Rockwell Automation Vorstlaan Boulevard du Souverain 36 1170 Brussels Belgium Tel 32 2 663 0600 Fax 32 2 663 0640 Asia Pacific Rockwell Automation Level 14 Core F Cyberport 3 100 Cyberport Road Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Publication 1790 UM002A EN P May 2002 PN 957657 66 Copyright 2002 Rockwell Automation All rights reserved Printed in the U S A
57. ly completed The following table shows module status LED indictor operation LED Indicator Module Status Table 4 1 Module Status Power up Diagnostics 1790D 4RO T4RO 1790P T4RO Status Description Solid Red Unrecoverable fault Hashing Red Recoverable fault Solid Green Normal operation OK Flashing Green Standby Off No power Network Status The network status LED indicator shows the condition of the network connection The following tables show network status LED indicator operation Table 4 2 Network Status Power up Diagnostics for 1790D 4RO T4RO 1790D 4RO T4RO LED Indicator Network Status Status Description Solid Red Unrecoverable communication fault Hashing Red Recoverable communication fault Solid Green Communication path complete OK Flashing Green Communication path incomplete Off Device not online or not powered Table 4 3 Network Status Power up Diagnostics for the 1790P T4RO 1790 480 LED Indicator Network Status Status Solid Green Description Communication path complete OK Flashing Green Communication path incomplete Off No power or baud rate search Publication 1790 UM002A EN P 4 4 Diagnostics and Troubleshooting Channel Diagnostics Publication 1790 UM002A EN P When an input channel is enabled the module performs a diagnostic check to see that the channel has been properly configured In addition
58. me when choosing a filter frequency For example the 10 Hz filter provides the greatest attenuation of 50 and 60 Hz noise and the greatest resolution but also provides the slowest response speed The choice that you make for filter frequency will affect noise rejection characteristics for module input channel step response channel cutoff frequency effective resolution module update time Effects of Filter Frequency on Noise Rejection The filter frequency that you choose for the module determines the amount of noise rejection for the inputs A smaller filter frequency e g 10H2 provides the best noise rejection and increases effective resolution but also increases channel update time A larger filter frequency e g 500 H2 provides lower noise rejection but also decreases the channel update time and effective resolution When selecting a filter frequency be sure to consider channel cutoff frequency and channel step response to obtain acceptable noise rejection Choose a filter frequency so that your fastest changing signal is below that of the filter s cutoff frequency Channel Step Response Module Data Status and Channel Configuration for DeviceNet 3 5 Common mode noise rejection for the module is better than 110 dB at 50 Hz 50 Hz filter and 60 Hz 60 Hz filter The module performs well in the presence of common mode noise Improper earth ground can be a source of common mode noise NOTE Transducer power supply no
59. ng Contacting Rockwell Automation Chapter Summary Publication 1790 UM002A EN P If you need to contact Rockwell Automation for assistance please have the following information available when you call clear statement of the problem including a description of what the system is actually doing Note the LED state also note input and output image words for the module a list of remedies you have already tried processor type and firmware number See the label on the processor hardware types in the system including all I O modules fault code if the processor is faulted In this chapter you learned how to perform diagnostic and troubleshooting on the 1790D 4R0 T4RO and 1790P TR40 RTD resistance modules See the appendixes for module specifications binary number information and module configuration for PROFIBUS Appendix A Specifications Environmental Specifications Environmental Specifications Operating Temperature 0 to 55 C 32 to 131 F IEC 60068 2 1 Test Ad Operating Cold IEC 60068 2 2 Test Bd Operating Dry Heat IEC 60068 2 14 Test Nb Operating Thermal Shock Storage Temperature 40 to 85 C 40 to 185 F IEC 60068 2 1 Test Ab Un packaged Non operating Cold IEC 60068 2 2 Test Bb Un packaged Non operating Dry Heat IEC 60068 2 14 Test Na Un packaged Non operating Thermal Shock Relative Humidity 5 90 non condensing IEC 60068 2 30 Test Db Un pa
60. of range open wiring Excitation Current 1mA Input Impedance 5M ohm Appendix B Positive Decimal Values Two s Complement Binary Numbers The processor memory stores 16 bit binary numbers Two s complement binary is used when performing mathematical calculations internal to the processor Analog input values from the RTD resistance module are returned to the processor in 16 bit two s complement binary format For positive numbers the binary notation and two s complement binary notation are identical As indicated in the figure on the next page each position in the number has a decimal value beginning at the right with 2 and ending at the left with 215 Each position can be 0 or 1 in the processor memory A 0 indicates a value of 0 a 1 indicates the decimal value of the position The equivalent decimal value of the binary number is the sum of the position values The far left position is always 0 for positive values As indicated in the figure below this limits the maximum positive decimal value to 32767 all positions are 1 except the far left position For example 0000 1001 0000 1110 211 28 23 22 21 2048 256 8 4 2 2318 0010 0011 0010 1000 213 29 28 25 23 8192 512 256 32 8 9000 1x214 16384 16384 1x2 8192 8192 1x21 4096 4096 1x2 2048 2048 1x210 1024 1024 1x2 512 512 1x29 256 256 1 2 128 128 1 26 264 64 1x25 32 32 1x2 16 16
61. ollowing table Channel LED Indicator Operation Diagnostics and Troubleshooting 4 5 Table 4 4 Word Bit Position Word Bit Description 15 14 13 12 11 10 9 8 7 6 5 4 2 n 4 Not Used 5111 510 59 58 Not Used 53 52 51 50 Table 4 5 Word Bit Description Word Decimal Bit Description Bits 00 03 Underrange for individual channels Bit 00 corresponds to input channel 0 bit 01 corresponds to input channel 1 and so on When set 1 the input signal is below the input channel s minimum range Bits 04 07 Not used Set to 0 Read Word 4 7 Bit 08 11 Overrange for individual channels Bit 08 corresponds to input channel 0 bit 09 corresponds to input channel 1 and so on When set 1 the input signal is above the input channel s maximum range or open RTD is detected Bit 12 15 Not used Set to 0 Individual channel LED indicator operation is shown in the following table Table 4 6 Individual Channel LEDs Indicator 1 0 Channel LED Status Indicator Status Description Flashing Green Red Power up Off Off line Red On line and no field power Red DeviceNet connection and no field power Flashing Red Field power and open wire Green Field power and valid input Flashing Red Input over range open input Flashing Red Input under range Flashing Red Recoverable fault Publication 1790 UM002A EN P 4 6 Diagnostics and Troubleshooti
62. or the modules avoid electrostatic damage e install the module wire module s terminal block 1790D 4R0 T4RO The module receives system power from the DeviceNet network An auxiliary field supply provides power for the RTD resistance channels Table 2 1 1790D 4R0 T4RO Power Specifications Power Specification DeviceNet Supply voltage 24V dc nominal Voltage range 11 28 8V dc Power dissipation 1 2W maximum 28 8V dc Field Supply voltage 24V dc nominal Voltage range 21 6 26 4V dc 41096 Power dissipation 1 5W maximum 26 4V dc 1790P T4RO The module requires external supplies for both system power and for the RTD resistance channels Table 2 2 1790 4 0 Power Specifications Power Specification PROFIBUS voltage 24V dc nominal Voltage range 19 2 28 8V dc Power dissipation 2W maximum 28 8V dc Field Supply voltage 24V dc nominal Voltage range 21 6 26 4V dc 41096 Power dissipation 1 5W maximum 26 4V dc Publication 1790 UM002A EN P 2 2 Installation and Wiring General Considerations Publication 1790 UM002A EN P The modules are suitable for use in a commercial or light industrial environment when installed in accordance with these instructions Specifically this equipment is intended for use in clean dry environments Pollution degree 20 and to circuits not exceeding Over Voltage Category II 60664 1 Hazardous Loc
63. ou can add modules to the network by 1 Selecting slaves from the PROFIBUS Device pane 2 Dragging and dropping them to the network pane Or if online by performing a search for slaves See the following screens for an outline of this procedure Untitled SST Profibus Configuration File Edt View Libray Onine Help Sex e Ole Bl wok 9 9 2 xj E PROFIBUS_DP BEES DPS 1000 Disconnected SST_PFB_SLC_MASTER Eg Masters E gr SST 38 5136 PFB 104 MASTER Rev 1 2 B 5136 PFB I5A MASTER Rev 1 3 8 5135 PFB PCI MASTER Rev 1 2 B 5136 PFB VME MASTER Rev 1 3 fll 55 MASTER Rev 1 0 88 SST PFB PCHCIA MASTER Rev 1 4 Gil SST Fe PLCS MASTER Rev 1 4 SST PFB REL MASTER Rev 1 4 SST PFB SLC MASTER Rev 1 4 Network l 9 UCS Connection cm Slaves C E Rockwell Automation Local Card 1790P T4R0 1 0011 1790P T4TO V1 001 XQ 1790P T8BV8B V1 001 1790P T8BVEV V1 001 1790P TNOC2 1 001 Station 4 1790P TN4CO V1 001 XQ 1790P TNAVO 1 001 BeudRae L9 1730P TNOV2 V1 001 aa SST 21 UCS ok Cancel LI Device ld GSD File First configure the network search properties Second search for slave modules Ready Publication 1790 UM002A EN P C 4 Module Configuration for PROFIBUS Publication 1790 UM002A EN P
64. put Filter Frequency 0 20 40 60 80 100 120 140 160 180 200 0 500 1000 1500 2000 2500 3000 43259 1 m Frequency Hz Publication 1790 UM002A EN P 3 8 Module Data Status and Channel Configuration for DeviceNet Effective Resolution The table below identifies the number of significant bits used to represent the input data for each available filter frequency The number of significant bits is defined as the number of bits that will have little or no jitter due to noise and is used in defining the effective resolution Table 3 7 Input Effective Resolution Versus Input Filter Selection Input Type Range 10 Hz 25 Hz 50 60 Hz 100 Hz 250 Hz 500 Hz 100 ohm 0 385 200 850 C Sign 14 Sign 14 Sign 14 Sign 14 Sign 13 Sign 11 bits 0 1 C bits 0 1 C bits 0 1 C bits 0 19C bits 0 2 C bits 0 5 C 200 ohm Pt w 385 200 850 C Sign 14 Sign 14 Sign 14 Sign 14 Sign 13 Sign 11 bits 0 1 bits 0 196 bits 0 1 bits 0 19C bits 0 2 C bits 0 5 500 ohm Pt w 385 200 650 C Sign 13 Sign 13 Sign 13 Sign 13 Sign 13 Sign 11 bits 0 1 C bits 0 1 C bits 0 1 C bits 0 19C bits 0 1 C bits 0 4906 100 ohm Pt 3916 200 640 C Sign 13 Sign 13 Sign 13 Sign 13 Sign 13 Sign 11 bits 0 1 bits 0 1 C bits 0 1 bits 0 19C bits 0 1 C bits 0 4906 200 ohm Pt 3916 200 640 C Sign 13 Sign 13 Sign 13 Sign 4 13 Sign 13 Sign 11 bi
65. r for your United country via the Internet States Canada 1 Go to http www ab com 2 Click on Product Support http support automation rockwell com 3 Under Support Centers click on Contact Information Internet 1 Go to http www ab com 2 Click on Product Support http support automation rockwell com Your Questions or Comments on this Manual If you find a problem with this manual please notify us by using the enclosed How Are We Doing form Overview Installation and Wiring Module Data Status and Channel Configuration for DeviceNet Diagnostics and Troubleshooting Specifications Table of Contents Chapter 1 General Descriptio cx deua e obra p ey 1 1 Hardware 1 3 System aea e eae de Oye pe 1 4 Chapter 5 1 6 Chapter 2 Before You aduana eth Oa E esa Henn 2 1 Power Requirements 2v er Re e vem ees 2 1 General 2 2 acc oes biu deed PET PIS ges 2 6 Field Wiring Connections 2 11 Chapter Summary 2 18 Chapter 3 Module Memory Map 3 1 Accessing Input Image File 3 1 Input Data Eilgse ef a el duro b dos 3 2 Pata AN m
66. rent Value 850 0 625 0 625 0 625 0 Alarm State Alarm State Alarm State Alarm State Deg 10 2 100 Pt 385 Ohms 100 milli Ohms 100 milli Ohms 100 milli Module Data Status and Channel Configuration for DeviceNet 3 13 Once module configuration is complete click either the Download or Apply button and click Yes for the popup question Ee 1790D 4R0 4RTD In x General Parameters 1 0 Data EDS Fie Select the parameter that you want to configure and initiate an action using the toolbar qi x gt Monitor o Parameter Curent Value ars 1 amp Input Value 0 850 0 2 8 amp Input Value 1 625 0 3 amp Input Value 2 625 0 4 amp Input Value 3 625 0 5 Status 80 Alarm State 5 Status 1 Alarm State 7 Status 2 Alarm State Status 3 Alarm State 3 Temp Units Notch Filler Deg C 10Hz 10 RTD Type 80 100 Pt 385 11 Type 1 Ohms 100 milli 12 Type 82 Ohms 100 milli 13 RTD Type 3 Ohms 100 milf Autobaud Then click OK to close the module properties window RTD resistance module parameters may be monitored real time The most convenient way to monitor module parameters is to a Click the Groups checkbox b Close the No Group Specified folder c Open the I O Input Values and I O Input Status folders d Click the Monitor button The module parameters are sequentially update
67. rself and others as well as the condition of your equipment is of primary importance The following sections describe several safety concerns you should be aware of when troubleshooting your control system ATTENTION Never reach into a machine to actuate a switch because unexpected motion can occur and cause injury Remove all electrical power at the main power disconnect switches before checking electrical connections or inputs outputs causing machine motion Indicator Lights When the green MOD and NET LED on the thermocouple module are illuminated it indicates that power is applied to the module that it has passed its internal tests and that the module is communicating on the network Activating Devices When Troubleshooting When troubleshooting never reach into the machine to actuate a device Unexpected machine motion could occur Publication 1790 UM002A EN P 4 2 Diagnostics and Troubleshooting Module Operation vs Channel Operation Publication 1790 UM002A EN P Stand Clear of the Equipment When troubleshooting any system problem have all personnel remain clear of the equipment The problem could be intermittent and sudden unexpected machine motion could occur Have someone ready to operate an emergency stop switch in case it becomes necessary to shut off power Program Alteration There are several possible causes of alteration to the user program including extreme environmental conditions Electrom
68. s the module can convert the RTD readings into linearized digital temperature readings in C or F When configured for resistance analog inputs the module can convert voltages into linearized resistance values in ohms The module assumes that the direct resistance input signal is linear prior to input to the module Each channel provides open circuit all wires and over and under range detection and indication The module accepts input from RTDs with up to 3 wires IMPORTANT UN If your application requires a 4 wire RTD one of the two lead compensation wires is not used and the RTD is treated like a 3 wire sensor The third wire provides lead wire compensation See Chapter 2 Installation and Wiring for more information Publication 1790 UM002A EN P 12 Overview The module supports the following filter frequencies e 10 Hz e 25 Hz e 50 Hz 60 Hz e 100 Hz e 250 Hz 500 Hz The module uses five input words for data and status bits Module configuration is stored in the module memory Configuration for 1790D CD4RO is done via RSNetWorx for DeviceNet programming software See Chapter 3 Module Data Status and Channel Configuration for details on module configuration Configuration for 1790P T4RO is done via PROFIBUS configuration software See Appendix C for details RTD Compatibility An RTD consists of a temperature sensing element connected by two three or four wires that provide input to the module The
69. s and make the resulting data values available to the processor multiplexer An switching system that allows several signals to share a common A D converter normal mode rejection differential mode rejection A logarithmic measure in dB of a device s ability to reject noise signals between or among circuit signal conductors The measurement does not apply to noise signals between the equipment grounding conductor or signal reference structure and the signal conductors number of significant bits power of two that represents the total number of completely different digital codes to which an analog signal can be converted or from which it can be generated overall accuracy The worst case deviation of the digital representation of the input signal from the ideal over the full input range is the overall accuracy Overall accuracy is expressed in percent of full scale repeatability The closeness of agreement among repeated measurements of the same variable under the same conditions resolution The smallest detectable change in a measurement typically expressed in engineering units e g 1 or as a number of bits For example a 12 bit system has 4096 possible output states It can therefore measure 1 part in 4096 Resistance temperature detector temperature sensing device that consists of a temperature sensing element connected by two three or four lead wires that provide input to the module Th
70. sing the programming software compatible with the controller or scanner This appendix includes PROFIBUS configuration information Chapter 3 contains detailed information on module parameters and performance While configuring your RTD resistance module for operation on PROFIBUS refer to Chapter 3 for the following information module memory map input data file data format o filter frequencies channel step response channel cutoff frequency effective resolution module update time Configuration of the 1790P T4RO RTD resistance modules is accomplished through PROFIBUS configuration software with easy to use GSD files To obtain the GSD files you need to configure the module access the following website http www ab com networks gsd The example in this chapter shows you how to configure the RTD resistance module with the SST PROFIBUS Configuration tool The configuration example outlined in this section is written for an experienced PROFIBUS user Refer to your scanner and network documentation for more complete details Open your SST PROFIBUS Configuration tool IMPORTANT If online make sure the processor is in Program mode Publication 1790 UM002A EN P C 2 Module Configuration for PROFIBUS If it s not already installed add the RTD resistance module GSD file from the dropdown menu Access 1 Library gt Add GSD 2 Click File gt New If the PROFIBUS devices pane is closed choose 3 View
71. ters without derating This equipment is considered Group 1 Class A industrial equipment according to IEC CISPR Publication 11 Without appropriate precautions there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance This equipment is supplied as open type equipment It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts The interior of the enclosure must be accessible only by the use of a tool Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications See NEMA Standards publication 250 and IEC publication 60529 as applicable for explanations of the degrees of protection provided by different types of enclosure Also see the appropriate sections in this publication as well as the Allen Bradley publication 1770 4 1 Industrial Automation Wiring and Grounding Guidelines for additional installation requirements pertaining to this equipment Publication 1790 UM002A EN P 2 4 Installation and Wiring Publication 1790 UM002A EN P Preventing Electrostatic Discharge This equipment is sensitive to electrostatic discharge which can
72. the channel is tested on every scan for configuration errors over range and under range and broken input conditions Non critical module errors are typically recoverable Channel errors Cover range or under range errors are non critical Non critical error conditions are indicated in the module input data table Out of Range Detection When the input signal data received at the channel word is out of the defined operating range an over range or under range error is indicated in input data word 4 Possible causes for an out of range condition include The temperature is too hot or too cold for the RTD being used The wrong RTD is being used for the input type selected or for the configuration that you have programmed The input device is faulty The signal input from the input device is beyond the scaling range Open Wire Detection The module performs an open circuit input test on all channels on each scan Whenever an open circuit condition occurs the overrange input bit for that channel is set in input data word 4 Possible causes of a broken input condition include the input device is broken wire is loose or cut the input device is not installed on the configured channel an RTD is internally shorted an RTD is not installed correctly Module Error Definition Table RTD resistance module errors are expressed on a channel basis in input read word 4 The structure of the status data is shown in the f
73. tr Rockwell Automation S precher S GmbH gt MA Graph Spreadsheet Master Slave Configuration Diagnostics dsl 2 ake 3 4 02 9 15 34 Mode changed to online The online path is US92401993 1770 KFD 1 Messages Online Not Browsing Publication 1790 UM002A EN P Module Data Status and Channel Configuration for DeviceNet 3 11 3 After setting up your system double click on the module you want to configure If you are online upload the configuration and existing parameters from the module display A window similar to the following appears EY 1790D 4R0 4RTD In General Parameters 1 0 Data EDS File Name Description Click the device Parameters tab to display the screen in which you can set parameters Vendor Type Device Catalog Revision Device Identity Primary 1790D 4R0 4RTD In 1790D 4R0 4RTD In zi Rockwell Automation Allen Bradley 1 Rockwell Automation miscellaneous 115 1780 480 4RTD In 67 7300 480 joor RTD resistance modules will have parameters similar to the following EY 1790D 4R0 4RTD In General Parameters 1 0 Data EDS Fie Select the parameter that you want to configure and initiate an action using the toolbar If you see a lock next to an entry this indicates that you cannot change that parameter E D E E E E
74. ts 0 1 bits 0 1 bits 0 1 C bits 0 19C bits 0 1 C bits 0 4906 500 ohm Pt 0 3916 200 640 C Sign 13 Sign 13 Sign 13 Sign 13 Sign 13 Sign 11 bits 0 1 bits 0 1 bits 0 1 bits 0 19C bits 0 1 C bits 0 4906 100 ohm Nickel 60 250 Sign 12 Sign 12 Sign 12 Sign 12 Sign 4 12 Sign 11 bits 0 1 bits 0 1 bits 0 1 bits 0 19C bits 0 1 C bits 0 2 C 120 ohm Nickel 80 260 C Sign 12 Sign 12 Sign 12 Sign 12 Sign 12 Sign 11 bits 0 1 bits 0 1 bits 0 1 bits 0 19C bits 0 1 bits 0 2 C 200 ohm Nickel 60 250 Sign 12 Sign 12 Sign 12 Sign 12 Sign 12 Sign 11 bits 0 1 bits 0 1 C bits 0 1 C bits 0 1 C bits 0 1 C bits 0 2 C 500 ohm Nickel 60 250 Sign 12 Sign 12 Sign 12 Sign 12 Sign 12 Sign 11 bits 0 1 C bits 0 1 C bits 0 1 C bits 0 1 C bits 0 1 C bits 0 2 C Resistance 100mQ 1 6252 Sign 13 Sign 13 Sign 13 Sign 13 Sign 13 Sign 13 bits 0 10 bits 0 10 bits 0 10 bits 0 10 bits 0 10 bits 0 40 Resistance 100 1 327 Q Sign 15 Sign 15 Sign 4 15 Sign 4 15 Sign 13 Sign 11 bits 0 10 bits 0 10 bits 0 10 bits 0 10 bits 0 04 bits 0 20 Publication 1790 UM002A EN P Determining Module Update Time DeviceNet RTD Resistance Module 1790D 4RO T4RO Module Data Status and Channel Configuration for DeviceNet 3 9 The mo
75. um allowed temperature The module automatically resets 0 the bit when the data value is again within the normal operating range Data Format Over Range Flag Bits S8 to S11 Module Data Status and Channel Configuration for DeviceNet 3 3 Under range bits for channels 0 through 3 are contained in word 4 bits 8 11 When set 1 the over range flag bit indicates an RTD temperature that is greater than the maximum allowed temperature a resistance input that is greater than the maximum allowed resistance for the module or an open channel is detected The module automatically resets 0 the bit when the data value is again within the normal operating range RTD resistance data is presented in engineering units x1 The engineering units data format represents real temperature or resistance data provided by the module RTD data is reported in either degrees C or degrees F Table 3 3 RTD Data Format Data Format RTD Input Type Range Engineering Units x1 0 10 0 1 F 100Q Platinum 385 200 850 C 2000 8500 3280 to 15620 200Q Platinum 385 200 850 2000 8500 3280 to 15620 500Q Platinum 385 200 650 2000 6500 3280 to 12020 100Q Platinum 3916 200 to 640 C 2000 6400 3280 to 1184 200Q Platinum 3916 200 64090 2000 6400 3280 to 1184 500Q Platinum 3916 200 to 64090 2000 6400 3280 to 1184 100Q Nickel
76. ustrial Automation Glossary Publication AG 7 1 A D Converter Refers to the analog to digital converter inherent to the module The converter produces a digital value whose magnitude is proportional to the magnitude of an analog input signal attenuation The reduction in the magnitude of a signal as it passes through a system channel Refers to input interfaces available on the module s terminal block Each channel is configured for connection to a thermocouple or millivolt input device and has its own data and diagnostic status words channel update time The time required for the module to sample and convert the input signals of one enabled input channel and update the channel data word common mode rejection For analog inputs the maximum level to which a common mode input voltage appears in the numerical value read by the processor expressed in dB common mode rejection ratio CMMR The ratio of a device s differential voltage gain to common mode voltage gain Expressed in dB CMRR is a comparative measure of a device s ability to reject interference caused by a voltage common to its input terminals relative to ground CMRR 20 Logio V1 V2 common mode voltage The voltage difference between the negative terminal and analog common during normal differential operation common mode voltage range The largest voltage difference allowed between either the positive or negative terminal and analog common during

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