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1746-UM001A-US-P, SLC 500 Analog Input Modules User Manual

1. information 151114 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Bit Number 0 Channel 0 0 Channel 1 0 Channel 2 0 Channel 3 0 Channel 4 0 Channel 5 0 Channel 6 0 Channel 7 0 Channel 8 0 Channel 9 0 Channel 10 0 Channel 11 0 Channel 12 0 Channel 13 0 Channel 14 0 Channel 15 i t Ae Class 1 Channel Configuration e Class 1 Handshaking e Not Used e Input Type e Data Format e Calibration e Filter Frequency e Channel Enable Bit 15 Channel Enable 0 channel disabled 1 channel enabled Bits 14 12 Filter Frequency 000 6 Hz 010 20 Hz 100 60 Hz 110 100 Hz 001 10 Hz 011 40 Hz 101 80 Hz 111 250 Hz Bits 11 9 Calibration 000 exit calibration 001 enter calibration 011 perform zero 101 perform full scale normal run mode calibration calibration Bits 8 6 Data Format Class 1 and Class 3 Class 3 Only 000 engineering units 010 proportional counts 100 user defined scaling 0 110 user defined scaling 2 001 scaled for PID 011 1746 NI4 data format 101 user defined scaling1 111 user defined scaling 3 Bits 5 4 Input Type 000 10V de or 20 mA 010 0 to 5V de or O to 1 mA 001 1 5V de or 4 20 mA 011 0 to 10V de or 0 to 20 mA Bits 3 Not Used Bit 2 Class 1 0 to reset status bit 6 1 tr
2. 1746 NIT61 Pose i i Channel 0 A 2 wire current ransmitter no m1 l Channel 2 z a a 2 wire current I o FL IN2 N3 ransmitter E 2 Channel 4 2 wire current e1 N4 E ransmitter l Channel 6 E 2 IN6 IN7 3 wire current 6 E T ransmitter l l E deis Analog 1 one Som 1 Vdc power ph supply l i IN8 Ing 3 d l l IN10 IN11 Crone sero 3 c power 6 E l supply IN12 IN13 IN14 IN15 3 l 4 1 There are two common terminals for all of the 16 current inputs These two analog common terminals are connected internally 2 All shield wires should be connected to chassis mounting screws 3 Unused channels should be connected to the analog common terminals 0 Volts 4 If separate shielded cables are used for each analog input channel interposing terminal blocks are needed to terminate up to 16 common wires Then 1 to 4 common wires should be wired from the interposing terminal block to the 2 common terminals on the 1746 NI16l module 5 The module does not provide loop power for analog inputs Use a power supply that matches the transmitter specifications 6 More than one power supply can be used if all supplies are class 2 Publication 1746 UM001A US P 3 12 Installation and Wiring Wiring Guidelines ATTENTION To prevent shock hazard care
3. Allen Bradley SLC 5007 Analog Input Modules Catalog Numbers 1746 N116 and 1746 NI16V 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 this control equipment 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 The illustrations charts sample programs and layout examples shown in this guide 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 the 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 the contents of this copyrighted publication in whole or part without written permission of Rockwell Automation is prohibited Throughout this manual
4. 5 14 Channel Configuration Data and Status Publication 1746 UM001A US P Scaled for PID to Real Units Example 3 A transducer is being used to measure temperature The 4 to 20 mA signal range is proportional to 100 to 500 C 212 to 932 F The input data is scaled for PID i e input range of 0 to 16383 Input value to convert 5500 The scaled range is 212 to 932 F The Input range is 0 to 16383 Find Input value in F Per the equation above 932 212 Slope Offset 212 0 x0 044 212 Scaled Value 5500 x 0 044 212 454 F Proportional Counts to Real Units Example 4 A transducer is being used to measure pressure The 10V de to 10V de signal range is proportional to 0 to 200 psi The input data is in Proportional Counts data format i e 32768 to 32767 Input value to convert 21567 The Scaled range is 0 to 200 psi The Input range is 32768 to 32767 Find Input value in psi Per the equation above 200 0 E 32767 32768 2 003 Slope Offset 0 32768 0 003 98 3 Scaled Value 21567 x 003 98 3 163 psi Channel Configuration Data and Status 5 15 1746 NI4 Data Format Units to Real Units Example 5 A transducer is being used to measure flow rate The 10V de to 10V de signal range is proportional to 0 to 100 GPM The input data is in 1746 NI4 format i e input range of 32768 to 32767 Input value to convert 10000 The Scaled ra
5. l e nus E mG Pin2 INS Transmitter E P IN4 Channel 4 s 5 IN5 l Voltage l ransmitter A 2 ING IN7 Channe 6 F o amp oltage Fansites E l _ Analog Analog an Vdc power supply IN8 Ing 3 l b _ 4 IN10 IN11 Optional second 3 Vdc power supply i IN12 1013 3 l IN14 IN15 Tig l 4 1 1 There are two common terminals for all of the 16 voltage inputs These two analog common terminals are connected internally 2 All shield wires should be connected to chassis mounting screws 3 Unused channels should be connected to the analog common terminals 0 Volts 4 If separate shielded cables are used for each analog input channel interposing terminal blocks are needed to terminate up to 16 common wires Then 1 to 4 common wires should be wired from the interposing terminal block to the 2 common terminals on the 1746 NI16V module 5 The module does not provide loop power for analog inputs Use a power supply that matches the transmitter specifications 6 More than one power supply can be used if all supplies are class 2 NOTE Although the above diagram has 12 unused inputs only 4 channels are shown connected to the Analog Com as an example Publication 1746 UM001A US P Installation and Wiring 3 11
6. or 001 330 725 1574 Outside USA Canada For Read This Document Document Number An overview of the SLC 500 family of products SLC 500 System Overview 1747 2 30 A description on how to install and use your Modular SLC Installation amp Operation Manual for Modular 1747 6 2 500 programmable controller Hardware Style Programmable Controllers A description on how to install and use your Fixed SLC 500 Installation amp Operation Manual for Fixed 1747 6 21 programmable controller Hardware Style Programmable Controllers A procedural and reference manual for technical personnel Allen Bradley Hand Held Terminal User Manual 1747 NP002 who use an HHT to develop control applications An introduction to HHT for first time users containing basic Getting Started Guide for HHT 1747 NM009 concepts but focusing on simple tasks and exercises and allowing the reader to quickly begin programming A reference manual that contains status file data and SLC 500 MicroLogix 1000 Instruction Set 1747 6 15 instruction set information for the SLC 500 processors and Reference Manual MicroLogix 1000 controllers In depth information on grounding and wiring Allen Bradley Allen Bradley Programmable Controller Grounding 1770 4 1 programmable controllers and Wiring Guidelines A description on how to install a PLC 5R system PLC 5 Family Programmable Controllers 1785 6 6 1 Hardware Installation Manual A description of imp
7. tell you what equipment you need explain how to install and wire the module show you how to set up one channel for analog input examine the state of the LEDs at normal startup examine the channel status word Have the following tools and equipment ready medium blade screwdriver medium cross head screwdriver analog input device cable for wiring inputs to module SLC processor and power supply installed in chassis analog input module 1746 NI16 e programming device and software Publication 1746 UM001A US P 2 2 Quick Start for Experienced Users Procedures 1 Check the contents of shipping box Reference Unpack the shipping box making sure that the contents include e analog input module Catalog Number 1746 NI16 e removable terminal block factory installed e Installation Instructions If the contents are incomplete call your local Allen Bradley representative for assistance 2 Ensure that your chassis and power supply support the 1746 NI16 module Reference If you are installing the module in a hazardous location read Hazardous Location Considerations on page 3 1 Chapter 3 Review the power requirements of your system to ensure that your chassis supports the module Installation and e f you are combining a 1746 NI16 module with another I O module in a fixed controller refer to the 1 0 Wiring module compatibility table found in Chapter 3 e For modular style systems calculat
8. 0 lt Dest N7 76 0 lt Publication 1746 UM001A US P 1 14 Application Examples File 3 Continued CH 3 Configuration CH3 and 11 Configuration CH 11 Configuration Complete Handshake Status Bit Complete B3 2 L 6 3 B3 2 MOV 0022 JE JE TE Move Source N7 11 3 6 11 1746 NI16V 16141 lt Dest 0 6 3 0 lt CH 3 and 11 Configuratio n CH3 and 11 Configuration CH 11 Configuration CH 3 and 11 Configuration Handshake Control Bit 0 6 3 CL 2 1746 NI16V CH 3 and 11 Configuration Handshake Control Bit Handshake Status Bit Complete Handshake Control Bit 0 6 3 1 6 3 B3 2 0 6 3 0023 e JE E 2 6 11 2 1746 NI16V 1746 NI16V 1746 NI16V CH 11 Configuration Complete B3 2 Ly 11 MOV Move Source 1 6 3 0 lt Dest N7 77 0 lt CH 4 Configuration CH 4 and 12 Configuration CH 12 Configuration Complete Handshake Status Bit Complete B3 2 1 6 4 B3 2 MOV 0024 __ __ Lf Lf Move Source N7 12 4 6 12 1746 NI16V 16141 lt Dest 0 6 4 0 lt Publication 1746 UM001A US P CH 4 and 12 Configuration Handshake Control Bit 0 6 4 e L gt 2 1746 NI16V 0025 0026 0027 0028 Application Examples 1 15 File 3 Continued CH 4 and 12 Configuration CH 4 and 12 Configuration CH 12 Configuration
9. 150 Current mA at 5V de 100 50 50 100 150 200 Current mA at 24V de Module Current Draw Power Supply Loading 1 0 Module 24V mA 1 0 Module 5V mA 24V mA 1 0 Module 24V mA NT4 40 BASn 150 125 DA8 185 0 BLM 1000 0 104 DA16 370 0 BTM 110 85 108 DAP12 370 0 DCM 360 0 1012 OBGEI 46 0 FIOAI 55 150 1012DC OB8 135 0 FIOAV 55 120 ITB16 0B16 280 0 HS 300 0 ITV16 OB16E 35 0 HSTP1 200 0 V8 0B32 series D 190 0 1A4 35 0 1V16 0B32E 90 0 1A8 50 0 IV32 series D OBP8 35 0 1A16 85 0 KE OBP16 250 0 188 50 0 KEn 1 0G16 180 0 1816 85 0 OV8 35 0 1B32 series D 50 0 OV16 270 0 IC16 85 0 OV32 series D 190 0 1616 140 0 OVP16 250 0 1H16 85 0 OW16 70 180 IM4 35 0 OW4 45 45 IM8 50 0 OW8 85 90 IM16 85 0 OX8 85 90 Publication 1746 UM001A US P Installation and Wiring 3 5 Fixed Chassis Example The following example shows how to use the chart and table on page 3 4 to determine if the module combination of an 1746 IN16 and 1746 NI16 is supported by the fixed I O chassis 1 Find the current draws of both modules in the table IN16 85 mA at 5V de and 0 mA at 24V de NI16 125 mA at 5V de and 75 mA at 24V dc 2 Add the current draws of both modules at 5V dc 85 mA 125 mA 210 mA 3 Plot this point on the chart above 210 mA at 5V dc 4 Add the current draws of both modules at 24V dc 0 mA 75 mA 75 mA
10. CL gt 8 MOV Move Source 1 6 0 0 lt Dest N7 74 0 lt CH 1 Configuration CH 1 and 9 Configuration CH 9 Configuration Complete Handshake Status Bit Complete B3 2 16 1 B3 2 MOV 0018 J E JE JE Move 1 6 9 Source N7 9 1746 NI16V A evra est 10 0 lt CH 1 and 9 Configuration Handshake Control Bi Publication 1746 UM001A US P 0 6 1 a 2 1746 NI16V 0019 0020 0021 File 3 Continued CH 1 and 9 Configuration CH 1 and 9 Configuration CH 9 Configuration Application Examples 1 13 CH 1 and 9 Configuration Handshake Control Bit Handshake Status Bit Complete Handshake Control Bit 0 6 1 1 6 1 B3 2 0 6 1 JE J E 4E WD 2 6 9 2 1746 NI16V 1746 NI16V 1746 NI16V CH 9 Configuration Complete B3 2 LY 9 MOV Move Source 1 6 1 0 lt Dest N7 75 0 lt CH 2 Configuration CH 2 and 10 Configuration CH 10 Configuration Complete Handshake Status Bit Complete B3 2 1 6 2 B3 2 MOV JE TF Move 2 6 10 Source N7 10 1746 NT16V A esi 20 0 lt CH 2 and 10 Configuration Handshake Control Bit 0 6 2 lt gt 2 1746 NI16V CH 2 and 10 Configuration CH 2 and 10 Configuration CH 10 Configuration CH 2 and 10 Configuration Handshake Control Bit Handshake Status Bit Complete Handshake Control Bit 0 6 2 1 6 2 B3 2 0 6 2 E E W gt 2 6 10 2 1746 NI16V 1746 NI16V 1746 NI16V CH 10 Configuration Complete B3 2 L gt 10 MOV Move Source 1 6 2
11. Contacting Allen Bradley o oo ia Des into pa 6 7 Chapter 7 Operating Classes a A Ge es 7 1 Glass A O bit 7 1 CASS A a M Aktien CE ed 7 1 Class L Example eosa ur ns Rad ne ide 7 1 Ladder Tiles Een oo ivre EGS ET PETES LS 7 3 Data File N arees NO 7 17 Class gt Example gee Sd Get al e a 7 18 AS ZA AR EIN pt 7 19 Data RGN ane qa a ora ets oe heat 7 21 Appendix A Electrical Specifications 31000000 ee ate topo ous A 1 PoysicalS PECINCALI ONS ls SATA AAA A 2 Environmental Specifications sist rs ports A 2 Input SPECIES gt cer ae RA A AA ey A 3 Publication 1746 UM001A US P Table of Contents iv Configuration Worksheet Two s Complement Binary Numbers Calibration Publication 1746 UM001A US P Appendix B Appendix C Positive Decimal Values Negative Decimal Appendix D Calibration Sequence Glossary Index Values Who Should Use this Manual Purpose of this Manual Preface Read this preface to familiarize yourself with the rest of the manual This preface covers the following topics e who should use this manual e the purpose of this manual e contents of this manual e related documentation e common techniques used in this manual e Allen Bradley support Use this manual if you are responsible for the design installation programming or maintenance of an automation control system that uses Allen Bradley small logic controllers You should have a basic understanding
12. Cycle power Enable channel if desired by setting channel configuration word Bit 15 1 Retry or End Status Configuration error Check Bits 15 to configuration word for bits 8 tol p 13 011 6 for valid data format attern 011 configuration Correct and retry Siatus Under range condition exists Bits 15 to The input signal is less than Yes e 13 gt the low scale limit forthe Pp Pattern 101 channel Correct and retry Is problem End Is problem corrected corrected Status Over range condition exists No Bits 15 to No ll 13 gt The input signal is greater than Pattern 110 the upper scale limit for the channel Correct and retry Y Contact your E An open circuit condition is Contact your local distributor Bits fe te present Check channel and local distributor or Allen Bradley a 13 gt wiring for open or loose Eg or Allen Bradley Pattern 100 connections Correct and retry Publication 1746 UM001A US P Replacement parts Contacting Allen Bradley Module Diagnostics and Troubleshooting 6 7 The 1746 NI16 module has the following replacement parts Part Part Number Replacement Terminal Block 1746 RT25G Replacement Terminal Cover 1746 R13 1746 NI16 User Manual 1746 UM001A US P If you need to contact Allen Bradley f
13. For definitions of terms not listed here refer to Allen Bradley s Industrial Automation Glossary Publication AG 7 1 A D Refers to the analog to digital converter inherent to the module The converter produces a digital value whose magnitude is proportional to the instantaneous magnitude of an analog input signal analog input module An I O module that contains circuits that convert analog dc input signals to digital values that can be manipulated by the processor attenuation The reduction in the magnitude of a signal as it passes through a system backplane A printed circuit board at the back of the chassis that provides electrical interconnection between the modules inserted into the chassis channel Refers to one of eight small signal analog input interfaces available on the module s terminal block Each channel is configured for connection to a voltage or current source 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 chassis A hardware assembly that houses devices such as I O modules adapter modules processor modules and power supplies common mode rejection ratio 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 c
14. one copy instruction can be used to constantly monitor status and at the same time a second copy instruction can be used to bring the analog data into the SLC processor The status data can then be used to qualify the ladder rungs that use the analog data This ensures that the data is not used if configuration errors open circuit conditions or over and under voltage conditions exist 0000 0001 0002 0003 0004 0005 0006 0007 Ladder File 2 Application Examples 1 At power up clear the input image table for the NI 6 to be sure old status and analog data is not used and then copy the configuration words for each of the analog modules 16 channels These configuration words are stored from N7 0 through N7 15 First Pass S 1 FLL J E Fill File 15 Source 0 Dest 1 6 0 Length 32 CoP Copy File Source N7 0 Dest 0 6 0 Length 16 Continually read the 16 status words for the 16 analog channels and store them in data table words N7 61 These words contain Error Conditions for each channel which are monitored in the following 16 rungs to determine if the data is valid before using it These Error Condition bits are 13 14 and 15 of each channel status word i e they must all be set to indicate No Error for each channel COP Copy File Source 1 6 16 Dest N7 46 Length 16 This rung an
15. 2 0 6 6 0029 J JE z s U 2 6 14 2 1746 NI16V 1746 NI16V 1746 NI16V CH 14 Configuration Complete B3 2 CL gt 14 MOV Move Source 1 6 6 0 lt Dest N7 80 0 lt CH 7 Configuration CH 7 and 15 Configuration CH 15 Configuration Complete Handshake Status Bit Complete B3 2 16 7 B3 2 MOV 0030 J E JE JE Move 7 6 15 Source N7 15 1746 NI16V 16141 lt Dest 0 6 7 0 lt CH7 and 15 Configuration CH 7 and 15 Configuration CH 15 Configuration CH 7 and 15 Configuration Handshake Control Bit 0 6 7 lt gt 2 1746 NI16V CH7 and 15 Configuration Handshake Control Bit Handshake Status Bit Complete Handshake Control Bit 0 6 7 16 7 B3 2 0 6 7 0031 JE JE 4E cu 2 6 15 2 1746 NI16V 1746 NI16V 1746 NI16V CH 15 Configuration Complete B3 2 CL 15 MOV Move Source 16 7 0 lt Dest N7 81 0 lt Publication 1746 UM001A US P Application Examples 1 17 File 3 Continued B3 3 B3 3 0032 34 CL 0 CH 8 Configuration CH 9 Configuration CH 10 Configuration CH 11 Configuration CH 12 Configuration CH 13 Configuration Complete Complete Complete Complete Complete Complete B3 2 B3 2 B3 2 B3 2 B3 2 B3 2 0033 al dE LE fo as AE JNE 8 9 10 11 12 13 CH 14 Configuration CH 15 Configuration Complete Complete B3 2 B3 2 B3 3 JE AVE gt 14 15 0 B3 3 CU 1 CLR Clear Dest 4 000000
16. Class 3 Only User Limit Range 3 Class 3 Only Normal RUN Mode Exit Calibration Mode Enter Calibration Mode Perform Zero Calibration Perform Full Scale Calibration 6 Hz 10 Hz 20 Hz 40 Hz LL 60 Hz x 80 Hz 100 Hz 250 Hz Channel Disabled Channel Enabled Publication 1746 UM001A US P 5 4 Channel Configuration Data and Status Publication 1746 UM001A US P Select Channel Enable Bit 15 Determine which channels are used in your program and enable them Place a 1 in bit 15 to enable a channel Place a 0 in bit 15 to disable the channel In class 1 only the handshake bit bit 2 needs to be set to transmit this configuration bit change The 1746 NI16 only samples data from channels that are enabled To optimize module operation and minimize throughput times disable unused channels by setting the channel enable bit to 0 When the channel enable bit is set 1 the module reads the configuration word information you have selected While the enable bit is set modification of the configuration word may lengthen the module update time for one cycle If any change is made to the configuration word the change must be reflected in the status word before new data is valid While the channel enable bit is cleared 0 the channel data word and status word values are cleared After the chann
17. Dest a 0 lt B3 4 D 1 16 2 16 2 MOV J TE Move 0 1 Source 16 2 1747 NI16V 1747 NH6V Dest ia 0 lt B3 4 gt 2 Publication 1746 UM001A US P 7 4 Application Examples Publication 1746 UM001A US P File 2 Continued 1 6 3 1 6 3 MOV 134 aya Move 0 1 Source 1 6 3 1746 NI16V 1746 NI16V 0 lt Dest N7 53 0 lt B3 4 a gt 3 1 6 4 1 6 4 MOV JE 4 Move 0 1 Source 1 6 4 1746 NI16V 1746 NI16V 0 lt Dest N7 54 0 lt B3 4 lt L gt 4 16 5 1 6 5 MOV 34 TE Move 0 1 Source 1 6 5 1746 NI16V 1746 NI16V 0 lt Dest N7 55 0 lt B3 4 D 5 1 6 6 1 6 6 MOV JE 4E Move 0 1 Source 1 6 6 1746 NI16V 1746 NI16V 0 lt Dest N7 56 0 lt B3 4 a 6 1 6 7 16 7 MOV 14 JE Move 0 1 Source 1 6 7 1746 NI16V 1746 NI16V 0 lt Dest N7 57 0 lt B3 4 D 7 0003 File 2 Continued Application Examples EQU B3 0 Equal CU Source A B3 4 1 0000000000000000 lt Source B 255 255 lt B3 0 CL 2 CLR Clear Dest B3 4 0000000000000000 lt 1 5 The COP Instruction copies Control Words for channels 8 to 15 regiesting analog data for those channels The data is received from the NI16 in input image words l 6 0 through 1 6 7 when bit 0 is set and bit 1 is reset for ea
18. F fault condition at power up 1 3 during operation 1 4 faulty calibration 6 5 filter definition G 2 filter frequency 4 9 definition G 2 selecting for A D groups 5 5 setting in configuration word 5 4 FSR See full scale range G 2 full scale error definition G 2 full scale range G gain drift definition G 2 gain error See full scale error G 2 getting started 2 1 tools required 2 1 H heat considerations 3 6 high calibration 5 5 l ID code 4 2 input channel multiplexing 1 4 input data scaling definition G 2 input device type 5 6 setting in configuration word 5 6 input devices source impedance 3 13 wiring 3 13 input filter See filter frequency G 2 input image 2 7 definition G 2 input image See status word and data word 4 5 input response to slot disabling 4 11 input types A 3 input word calibrate channel status bits 5 21 class 1 data format bits 5 21 class 1 data or status configuration bits 5 22 class 1 handshaking bit 5 21 class 3 data format bits 5 21 error condition bits 5 20 filter frequency bits 5 20 input type bits 5 22 installation 3 1 3 8 equipment required 2 1 getting started 2 1 heat and noise considerations 3 6 Index location in chassis 2 3 invalid calibration reference 6 5 L LEDs 1 2 6 3 channel status 6 5 channel status indicators 1 3 module status 6 4 module status indicator 1 3 state tables 6 4 local configuration definition G 2 low calibration 5 5 LSB definition G 2 M memo
19. Module operation vs Channel Operation Power Up Diagnostics Chapter 6 Module Diagnostics and Troubleshooting This chapter describes troubleshooting using the channel status LEDs as well as the module status LED It explains the types of conditions that might cause an error to be reported and gives suggestions on how to resolve the problem Major topics include e module operation vs channel operation e power up diagnostics e channel diagnostics e LED indicators e channel status error codes e troubleshooting flowchart e replacement parts e contacting Allen Bradley The module performs operations at two levels e module level operations e channel level operations Module level operations include functions such as power up configuration and communication with the SLC 500 processor Channel level operations describe channel related functions such as data conversion and open circuit detection Internal diagnostics are performed at both levels of operation and any error conditions detected are immediately indicated by the module s LEDs At module power up a series of internal diagnostic tests are performed These diagnostic tests must be completed successfully or a module error results and the module status LED remains off Publication 1746 UM001A US P 6 2 Module Diagnostics and Troubleshooting Channel Diagnostics Publication 1746 UM001A US P When a channel is enabled bit 15 1 a diagnostic check is pe
20. P 2 Index D data word 4 5 addressing 4 5 definition G 2 module input image 5 8 scaling examples 5 12 values for engineering units 5 9 values for scaled data 5 10 data word format 5 6 setting in configuration word 5 6 dB definition G 2 default filter setting 5 4 default setting of configuration word 5 2 definition of terms G 1 diagnostics channel 6 2 diagnostics channel invalid configuration 6 2 LED indicators 6 3 open circuit detection 6 3 out of range detection 6 2 diagnostics power up 6 1 differential mode rejection See normal mode rejection G 3 digital filter definition G 2 disabling a channel 5 4 door label 1 3 E electrical noise 3 6 3 12 enabling a channel 5 4 engineering units description 5 10 scaling examples 5 13 equipment required for installation 2 1 error codes 6 5 error conditions 5 20 Publication 1746 UM001A US P corrective actions 6 4 errors 6 5 bit definitions 5 20 6 5 corrective actions 6 4 descriptions 6 5 detecting channel related errors 6 5 open circuit 6 3 over range error 6 2 under range error 6 2 invalid channel configuration 6 2 module related errors 6 4 conditions at power up 6 4 non recoverable errors 6 4 open circuit detection 6 3 out of range 6 2 over range error 6 2 status word bit definitions 5 19 European Union Directives 3 6 examples how to address configuration word 4 5 how to address data word 4 6 how to address status word 4 6 scaling the data word 5 12 5 15
21. Whenever an open circuit condition occurs the channel status LED blinks and the condition is reported in bits 15 through 13 of the channel status word See Error Codes on page 6 5 Possible causes of an open circuit include e The sensing device may be broken e A wire may be loose or cut e The sensing device may not have been installed on the configured channel If an open circuit is detected the channel data word reflects input data as O mA in the 4 to 20 mA configuration For the voltage module open circuit data is displayed for all voltage ranges as the maximum value readable in that voltage range See tables on pages 5 9 and 5 10 The module has five LEDs Four of these are channel status LEDs numbered to correspond to each of the four groups of four input channels 0 to 3 4to 7 8 to 11 12 to 15 The fifth is a module status LED INPUT 0 3 4 7 Channel Status 8 11 12 15 Channel Status LEDs Module Status Module Status LED Analog Voltage Publication 1746 UM001A US P 6 4 Module Diagnostics and Troubleshooting Publication 1746 UM001A US P LED State Tables Module Status LED If Module Status Indicated Corrective action LED is condition On Proper Operation No action required Off Module Fault Cycle power If condition persists call your local distributor or Allen Bradley for assistance Al
22. channel status and related error information contained in the channel status word A solid green channel status LED indicates normaloperation The channel status LED blinks to indicate error conditions such as e channel related configuration errors e open circuit errors e out of range errors All channel errors are recoverable errors and after corrective action normal operation resumes Bits 15 through 13 of the channel status word indicate error conditions as described in the table below Error Condition Description Bit15 Bit14 Bit 13 Channel Disabled The channel is disabled 0 0 0 Faulty Calibration The calibration process was not executed properly The correct sequence is 1 0 0 1 the calibration mode must be entered 2 zero values must be calibrated and 3 full scale values are calibrated See Appendix D for more detailed information on the calibration procedure Invalid Calibration A value outside the expected calibration range was applied to the channel for 0 1 0 Reference either the zero or full scale calibration range See Appendix D for more information on calibration value ranges Configuration Error An illegal bit pattern was entered in the configuration word bits 8 through 6 0 1 1 The configuration error bits are cleared when the channel is disabled Open Circuit Detected The channel has detected an open circuit at its input The open circuit state 1 0 0 always takes precedence over the out of r
23. per terminal Maximum Cable NI16V Impedance Voltage Source with less than 10Q impedance 1250Q maximum loop impedance for 1LSB error NI161 Current Source transmitter properly wired to its power supply 249 maximum loop impedance to meet common mode voltage requirements Terminal Block Removable Allen Bradley spare part Catalog Number 1746 RT25G Allen Bradley Prewired Cables 1492 ACAB005A46 0 5m 1 6 ft 1492 ACAB010A46 1 0 m 3 3 ft 1492 ACAB025A46 2 5 m 8 2 ft 1492 ACABO50A46 5 0 m 16 4 ft Allen Bradley User Terminal Blocks 1492 AlFM8 3 1492 AIFM16 F 3 Description Specification Operating Temperature 0 C to 60 C 32 F to 140 F in any slot except slot 0 Storage Temperature 40 C to 85 C 40 F to 185 F Relative Humidity 5 to 95 without condensation Agency Certification UL listed C UL approved CE compliant for all applicable directives Hazardous Environment Classification Class Division 2 Hazardous Environment Input Specifications Description Type of Input Selectable Specifications A 3 Specification NI16V 10V de 1 to 5V de O to 5V de O to 10V dc NIM6l 0 to 20 mA 4 to 20 mA 20 mA 0 to 1 mA Type of Data Selectable Engineering Units Scaled for PID Proportional Counts 32 768 to 32 767 range Proportional Counts User Defined Range Class 3 on
24. power supply When using a fixed system controller see Fixed Expansion Chassis Considerations on page 3 3 Modular Chassis Considerations Place your 1746 NI16 module in any slot of an SLC 500 modular or modular expansion chassis except for the extreme left slot slot 0 in the first chassis This slot is reserved for the processor or adapter modules Mae Fo applications using the upper limit of the operating temperature range the 1746 NI16 module or multiple 1746 NI16 modules should be placed in the right most slot s of the chassis The specification for operating temperature is Operating Temperature Range 0 C to 60 C 32 F to 140 F in any slot except slot 0 Fixed Expansion Chassis Considerations The chart on page 3 4 depicts the range of current combinations supported by the fixed I O expansion chassis To use it first find the backplane current draw and operating voltage for both of the modules you plan to use in the chassis The table on page 3 4 shows these specifications Publication 1746 UM001A US P 3 4 Installation and Wiring Next plot each of the currents on the chart If the point of intersection falls within the operating region your combination is valid If not your combination cannot be used in a 2 slot fixed I O chassis See the example on page 3 5 is DA16 and 1A16 0 455 400 350 300 OW16 and 1A16 180 255 Plotted from example shown on page 3 5 250 200
25. should be taken when wiring the module to analog signal sources Before wiring any analog module disconnect power from the SLC 500 system and from any other source to the analog module Follow the guidelines below when planning your system wiring e To limit noise keep signal wires as far away as possible from power and load lines e To ensure proper operation and high immunity to electrical noise always use Belden 8761 shielded twisted pair or equivalent wire e Connect the shield drain wire to the earth ground of the chassis e Tighten terminal screws using a flat or cross head screwdriver Each screw should be turned tight enough to immobilize the wire s end Excessive tightening can strip the terminal screw The torque applied to each screw should not exceed 0 7 to 0 9 Nm 6 to 8 in lbs for each terminal e Follow system grounding and wiring guidelines found in your SLC 500 Modular Hardware Style Installation and Operation Manual publication 1747 6 2 Publication 1746 UM001A US P Installation and Wiring 3 13 Input Devices Transducer Source Impedance If the source impedance of the input device and associated cabling is too high it affects the accuracy of the channel data word Source impedance of 2000 ohms produces up to 0 01 of module error over and above the specified accuracy of the module You can compensate for device impedance error by implementing the following equation in your ladder program
26. speed at which an input signal can change and still be detected by the converter Module Calibration The 1746 NI16 module is already factory calibrated and ready for use Although factory calibration is suitable for most applications the module can be calibrated by the user See Appendix D for more information on calibration Required Tools and Equipment Chapter 2 Quick Start for Experienced Users This chapter can help you to get started using the 1746 NI16 analog input module The procedures here are based on the assumption that the user has an understanding of SLC 5007 products The user should understand electronic process control and be able to interpret the ladder logic instructions required to generate the electronic signals that control the application Because this chapter is a start up guide for experienced users this chapter does not contain detailed explanations about the procedures listed It does however reference other chapters in this book where you can get more information about applying the procedures described in each step It also references other documentation that may be helpful if you are unfamiliar with programming techniques or system installation requirements If you have any questions or are unfamiliar with the terms used or concepts presented in the procedural steps always read the referenced chapters and other recommended documentation before trying to apply the information This chapter will
27. the low scale value and 16 383 representing the full scale value minus 1 LSB The input signal range is proportional to your selected input type and scaled into a 0 16 383 range which is standard to the SLC PID algorithm The proportional count value is a 16 bit signed integer The input signal range is proportional to your selected input and scaled into a 32 768 to 32 767 range Channel Configuration Data and Status 5 11 The 1746 NI4 data format converts the current and voltage signals into 16 bit two s complement binary values The table below identifies the current and voltage input ranges for the input channels the number of significant bits and the resolution Voltage Current Range Decimal Representation Number of Significant Bits Resolution per LSB 10V de to 10V de 1LSB 32768 to 32 767 16 bits 305 176 pV 0 to 5V de 0 to 16 384 14 bits 1 to 5V de 3 277 to 16 383 13 67 bits 0 to 10V de 1LSB 0 to 32 767 15 bits 0 to 20 mA 0 to 16 384 14 bits 1 22070 pA 4 to 20 mA 3 277 to 16 384 13 67 bits 20 mA to 20 mA 16 384 to 16 384 15 bits Oto1mA 0 to 1000 10 bits 1 pal 1 This data format is not supported by the 1746 NI4 module but is available for the 1746 NI8 and 21746 NI16 modules User defined scaling count Class 3 operation only allows the output image data words 16 and 17 18 and 19 20 and 21 or 22 and 23 to be selected to represent low scale and high scale limits The mo
28. we use notes to make you aware of safety considerations ATTENTION Identifies information about practices or circumstances that can lead to personal injury or t death property damage or economic loss Attention statements help you to e identify a hazard e avoid a hazard e recognize the consequences IMPORTANT Identifies information that is critical for successful application and understanding of the product ControlNet is a trademark of Rockwell Automation SLC 500 is a trademark of Rockwell Automation RSLogix 500 is a trademark of Rockwell Automation Belden is a trademark of Belden Inc Overview Quick Start for Experienced Users Installation and Wiring Table of Contents Preface Who should Use this Manual es dors sh A ut ter P 1 Purpose of this Manual P 1 Contents of this Manual uses Mae av Pre eh P 2 Related Documentation ras er Re P 3 Common Techniques Used in this Manual P 4 Allen Bradley Support ane onu aa P 4 Local Product Support Sous 8 ee Rime Ra P 4 Technical Product Assistance cos Pa most rides P 4 Your Questions or Comments on this Manual P 4 Chapter 1 General Description A RS AN TA En 1 1 Hard Wwate Features E ERA ee eR 1 2 General Diagnostic Features 1 3 SYSTEM OVETVIEW iv a a Ur en a GLA 1 3 System OPTOMA SA TRE a ee ed 1 3 Module Operation lt 2 2 5 eo rer bot hoe rs ete ne 1 4 Module Calibration
29. word Publication 1746 UM001A US P 1 4 Overview Publication 1746 UM001A US P Each time a channel is read by the module that data value is tested by the module for a fault condition i e open circuit over range and under range If a fault condition is detected a unique bit is set in the channel status word and the channel status LED blinks The SLC processor reads the converted analog data from the module at the end of the program scan or when commanded by the ladder program If the processor and module determine that the backplane data transfer was made without error the data is used in your ladder program A graphic representation of this is shown below Data Transfer Between the Module and Processor shown for one channel Voltage or Current Analog Channel Input gt Channel Data Word Channel Status Word SLC 500 Aa 6 Processor Input Module Channel Configuration Word from Ladder Program E Module Operation The 1746 NI16 module s input circuitry consists of four analog to digital A D converters Each of the 4 A D converters multiplex 4 inputs for a total of 16 single ended inputs The A D converters read the selected input signal and convert it to a digital value The multiplexer sequentially switches each input channel to the module s A D converter Multiplexing provides an economical means for a single A D converter to convert multiple analog signals However multiplexing also affects the
30. 0000000000 lt 0034 END The following table shows configuration and control words for the ladder program The table is showing integer file N7 in the Decimal Radix Words N7 0 through N7 15 contain the configuration words for analog channels 0 to 15 to send analog data to the controller These configurations and control words must be viewed in the Binary Radix because they are bit mapped Please refer to Chapter 5 Channel Configuration Data and Status for an explanation of each bit in these words For this example each channel has been configured for 0 to 10vdc 1746 NI14 data format and a filter frequency of 60 Hz Data File N7 Offset 0 1 2 3 4 5 6 7 8 9 N7 0 16142 16142 16142 16142 16142 16142 16142 16142 16141 16141 N7 10 16141 16141 16141 16141 16141 16141 0 0 0 0 N7 20 32768 32768 32768 32768 32768 32768 32768 32768 32767 32767 N7 30 32767 32767 32767 32767 32767 32767 0 0 0 0 Publication 1746 UM001A US P 1 18 Application Examples Class 3 Example Publication 1746 UM001A US P The following ladder logic program configures all 16 channels of a 1747 NI16 analog input module It then monitors the module status information and uses the analog data from the 16 channels when status for each channel is good In Class 3 mode the processor can read write up to 32 1 0 words from the module In this mode the SLC 5 02 or later processor can configure all 16 channels with one COPY instruction In addition
31. 0007 Application Examples 1 9 File 3 Continued CH 2 and 10 Configuration CH 2 Configuration Handshake Status Bit Complete 16 2 B3 2 MOV Vt Move 6 2 Source N7 2 1746 NI16V 16142 lt Dest 0 6 2 0 lt CH 2 and 10 Configuration Handshake Control Bit 0 6 2 CES 2 1746 NI16V y CH 2 and 10 Configuration CH 2 and 10 Configuration CH 2 Configuration Handshake Control Bit Handshake Status Bit Complete 16 2 B3 2 0 6 2 3E QU 6 2 2 1746 NI16V 1746 NI16V CH 2 Configuration Complete B3 2 CL gt 2 MOV Move Source 16 2 0 lt Dest N7 68 0 lt CH 3 and 11 Configuration CH 3 Configuration Handshake Status Bit Complete 16 3 B3 2 MOV 4 34 Move 6 3 Source N7 3 1746 NI16V 16142 lt Dest 0 6 3 0 lt CH 3 and 11 Configuration Handshake Control Bit 0 6 3 LY 2 1746 NI16V CH 3 and 11 Configuration CH 3 Configuration CH 3 and 11 Configuration Handshake Status Bit Complete Handshake Control Bit 1 6 3 B3 2 0 6 3 JE WD 6 3 2 1746 NI16V 1746 NI16V CH 3 Configuration Complete B3 2 CL gt 3 m MOV Move Source Dest Publication 1746 UM001A US P 7 10 Application Examples File 3 Continued CH 4 and 12 Configuration CH 4 Configuration Handshake Status Bit Complete 1 6 4 B3 2 MOV 0008 LE 4 Move 6 4 Source N7 4 1746 NI16V 16142 lt D
32. 213 29 28 25 23 8192 512 256 32 8 900 1x214 16384 16384 1x2 3 8192 8192 1x212 4096 4096 1x2 2048 2048 1x210 1024 1024 1x29 512 512 1x28 256 256 1x2 128 128 1x28 64 64 0x215 0 This position is always zero for positive numbers Publication 1746 UM001A US P C 2 Two s Complement Binary Numbers Negative Decimal Values In two s complement notation the far left position is always 1 for negative values The equivalent decimal value of the binary number is obtained by subtracting the value of the far left position 32 768 from the sum of the values of the other positions In the figure below all positions are 1 the value is 32 767 32 768 1 For example 1111 1000 0010 0011 2144213 2124211425421420 215 16384 8192 4096 2048 32 2 1 32 768 30 755 32 768 2013 1x214 16384 16384 1x2 3 8192 8192 1x21 4096 4096 1x211 2048 2048 1x210 1024 1024 1x29 512 512 1x28 256 256 1x27 128 128 1x28 64 64 1x25 32 32 1215232768 This position is always 1 for negative numbers Publication 1746 UM001A US P Calibration Sequence Appendix D Calibration The module should be calibrated to the following values to adhere to the Module Error Over Full Temperature Range specifications in Appendix A Calibration Voltage or Current Range Module Type Low Calibration Value High Calibration Value 1746 NI16V 0 005 V to 0 005 V 10 2
33. 45 V to 10 255 V 1746 N1161 0 03 mA to 0 03 mA 20 97 mA to 21 03 mA The module returns a faulty calibration error if the order of the calibration sequence is not performed as expected The calibration sequence is as follows 1 2 10 11 Disable the channel to be calibrated by setting bit 15 to 0 Set bit 9 equal to 1 in the configuration word to enter the calibration mode Apply a low calibration value from the appropriate range according to the table above Set bit 10 to 1 to accept this input as the new low calibration value Verify that bit 8 in the appropriate status word has changed to a 1 signifying that the low value calibration was accepted Change bit 10 in the calibration word back to a 0 Apply a high calibration value to the channel to be calibrated from the appropriate range according to the table above Set bit 11 to 1 to accept this input as the new high calibration value Verify that bit 9 in the appropriate status word has changed to a 1 signifying the high value calibration was accepted Change bit 11 in the calibration word back to a 0 Change bit 9 in the configuration word back to a 0 to exit the calibration mode Existing calibration values can be overwritten to re calibrate a channel Publication 1746 UM001A US P D 2 Calibration Publication 1746 UM001A US P Glossary The following terms and abbreviations are used throughout this manual
34. 5 Plot this point on the chart above 75 mA at 24V do The resulting point of intersection is marked with an x on the chart above showing that this combination falls within the operating region of the fixed I O chassis IMPORTANT When using the table be aware that there are certain conditionsthataffectthe compatibility characteristics of the BASIC module BAS and the DH 485 RS 232C module KE When you use the BAS module or the KE module to supply power to a 1747 AIC Link Coupler the Link Coupler draws its power through the module The higher current drawn by the AIC at 24V dc is calculated and recorded in the table for the modules identified as BASn BAS networked or KEn KE networked Make sure to refer to these modules if your application uses the BAS or KE module in this way Publication 1746 UM001A US P 3 6 Installation and Wiring Compliance to European Union Directives Publication 1746 UM001A US P General Considerations Most applications require installation in an industrial enclosure to reduce the effects of electrical interference Analog inputs are highly susceptible to electrical noise Electrical noise coupled to the analog inputs reduces the performance accuracy of the module Group your modules to minimize adverse effects from radiated electrical noise and heat Consider the following conditions when selecting a slot for the analog input module Position the module e in a slot away from sour
35. 5 addressing example 4 6 status word 4 5 addressing example 4 6 aliasing frequency 4 10 Allen Bradley P 4 contacting for assistance P 4 analog input module definition G 1 overview 1 1 attenuation 3 dB frequency 4 9 definition G 1 backplane connector 3 8 data transfer 1 4 definition G 1 electrostatic damage 3 2 bit allocation 5 1 bit definition channel enable 5 4 data format 5 6 filter frequency 5 4 in configuration word 5 3 input type 5 6 open circuit state 5 5 Index C cable tie slots 1 3 calibration 1 4 channe definition G 1 channel data word values scaled data 5 10 channel disabled 6 5 channel status checking 5 16 channel status LED 1 3 2 8 channel status word example 2 8 channel update time definition G 1 chassis definition G 1 installing module in 2 3 3 8 CMRR See common mode rejection ratio G 1 common mode rejection ratio definition G 1 common mode voltage definition G 1 configuration bit 3 5 6 class 1 data or status bits 5 7 class 1 handshaking 5 7 select calibration mode 5 5 select data format 5 6 select filter frequency 5 4 selecting input type 5 6 unused bit 5 6 configuration error 6 5 configuration word 4 5 bit definition chart 5 3 definition G 1 factory default setting 5 2 worksheet B 1 configuring a channel worksheet B 1 connection diagram 2 3 3 9 contacting Allen Bradley for assistance P 4 contents of manual P 2 current draw 3 3 cut off frequency 4 9 Publication 1746 UM001A US
36. 73 314 7 10 380 285 190 4 20 194 145 96 4 40 100 75 50 4 60 69 52 34 4 80 54 39 26 4 100 37 27 18 4 250 18 13 9 4 1 Assuming all of the enabled channels have he filter frequency shown in the first column Publication 1746 UM001A US P 4 8 Preliminary Operating Considerations Publication 1746 UM001A US P The hardware architecture has some bearing on how the module firmware works and thus how a user can optimize performance when fewer than all 16 channels are required You can enable any number of channels you want but certain channel selections make data available to your ladder program more quickly than others The module uses four A D converters each multiplexing four input channels The first A D is for channels O through 3 the second for 4 through 7 and so forth Although there is room in the configuration data table to select a different filter for each channel the filter value programmed for the first channel of each A D is used for all four channels of that A D In other words the filter selection made for channel 0 is used for channels 0 through 3 The selection programmed for channel 4 is applied to channels 4 through 7 and so forth If your application requires 12 or fewer of the 16 analog inputs you can achieve a module update time of about 3 4 of the time listed in the table above for 16 channels if you enable channels in a certain way Use the first three channels on each A D leaving the
37. 746 NI16 Analog Input Module Description Backplane Current Consumption Specification 125 mA at 5V de 75 mA at 24V de Backplane Power Consumption 2 425W maximum 0 625W at 5V de 1 8W at 24V dc Number of Channels 16 backplane isolated 1 0 Chassis Location Any 1 0 module slot except slot 0 A D Conversion Method Sigma Delta Input Filtering Low pass digital filter with programmable filter frequencies Normal Mode Rejection between input and input gt 80 dB at 50 60 Hz gt 75 dB at de gt 100 dB at 50 60 Hz Common Mode Rejection between inputs and chassis ground Greater than or equal to 75 dB at DC Greater than or equal to 100 dB at 50 60 Hz Input Filter Frequencies 6 Hz 10 Hz 20 Hz 40 Hz 60 Hz 80 Hz 100 Hz 250 Hz Isolation 500V ac isolation for 1 second Common Mode Voltage Range 10 25V relative to analog common terminal 20 5V maximum between any two signal input terminals Publication 1746 UM001A US P A 2 Specifications Physical Specifications Environmental Specifications Publication 1746 UM001A US P Description LED Indicators Specification 5 green status indicators one for each group of 4 channels and one for module status Module ID Code Class 1 Class 3 NI16V 3505 10406 NI16l 3504 10403 Recommended Cable Belden 8761 or equivalent Maximum Wire Size Two 14 AWG wires
38. 9 and page 5 10 for the channel word signal ranges NOTE In all of the examples on pages 5 13 to 5 15 the zero offset is the low range limit nputMin Formulas Three formulas are used in all of the following examples They are Scaled Value Input Value x Slope Offset where Slope ScaledMax ScaledMin Pe inputMax InputMin and Offset ScaledMin InputMin x Slope Channel Configuration Data and Status 5 13 Engineering Units to Real Units Example 1 A transducer is being used to measure temperature The 4 to 20 mA signal is proportional to 100 to 500 C 212 to 932 F The input data is in engineering units i e 4 to 20 mA where 4mA 1uA per step um and 20mA __ 20000 TA per step Input value to convert 5500 The scaled range is 212 to 932 F The input range is 4000 to 20000 Find Input Value in F Per the equations above 9322212 0645 Slope 5000 4000 Offset 212 4000 x 0 045 32 Scaled Value 5500 x 0 045 32 279 5 F Example 2 A transducer is being used to measure temperature The 0 to 10V de signal range is proportional to O to 10 C The input data is in engineering units i e 0 to 10V de where 10Vde TmV per step Input value to convert 5000 0000 Find Input value in C Per the equations above 10 0 10000 0 do Slope Offset 0 0x0 001 0 Scaled Value 5000 x 0 001 5 C Publication 1746 UM001A US P
39. CH 4 and 12 Configuration Handshake Control Bit Handshake Status Bit Complete Handshake ie Bit 0 6 4 1 6 4 B3 2 0 6 4 J E J r s CUD 2 6 12 2 1746 NI16V 1746 NI16V 1746 NI16V CH 12 Configuration Complete B3 2 D 12 MOV Move Source 16 4 0 lt Dest N7 78 0 lt CH 5 Configuration CH 5 and 13 Configuration CH 13 Configuration Complete Handshake Status Bit Complete B3 2 16 5 B3 2 MOV JE 24 Move 5 6 13 Source N7 13 1746 NI16V 16141 lt Dest 0 6 5 0 lt CH 5 and 13 Configuration Handshake Control Bit 0 6 5 EEN 2 1746 NI16V CH 5 and 13 Configuration CH 5 and 13 Configuration CH 13 Configuration CH 5 and 13 Configuration Handshake Control Bit Handshake Status Bit Complete Handshake Control Bit 0 6 5 16 5 B3 2 0 6 5 J E IE JE UD 2 6 13 2 1746 NI16V 1746 NI16V 1746 NI16V CH 13 Configuration Complete B3 2 k 13 MOV Move Source 16 5 0 lt Dest N7 79 0 lt CH 6 Configuration CH 6 and 14 Configuration CH 14 Configuration Complete Handshake Status Bit Complete B3 2 16 6 B3 2 MOV J E JE E Move 6 6 14 Source N7 14 1746 NI16V 16141 lt Dest 0 6 6 0 lt CH 6 and 14 Configuration Handshake Control Bit 0 6 6 CL gt 2 1746 NI16V Publication 1746 UM001A US P 7 16 Application Examples File 3 Continued CH 6 and 14 Configuration CH 6 and 14 Configuration CH 14 Configuration CH 6 and 14 Configuration Handshake Control Bit Handshake Status Bit Complete Handshake Control Bit 0 6 6 1 6 6 B3
40. Data Format Bits 5 and 4 The data format bit field indicates the data format defined for the channel This field reflects the data format selected in the channel configuration word The data format field is cleared when the channel is disabled In Class 1 only 2 bits describe the data format because user limits ranges are not selectable in Class 1 Publication 1746 UM001A US P 5 22 Channel Configuration Data and Status Publication 1746 UM001A US P Input Type Bits 3 and 2 The input type bit field indicates what type of input signal the channel is configured for based on the configuration word The input type field is cleared when the channel is disabled Class 1 Data or Status Configuration Bits 1 and 0 When bits 1 and 0 are set to 0 0 or 0 1 in the configuration word data is being requested from channels 0 to 7 or 8to 15 in Class 1 to be reflected in the 8 input words The module returns a 16 bit value for the channel data which can be used directly However the resolution of data in Class 1 is only 14 bits Bits 1 and 0 are overwritten with the data or status configuration information Therefore Class 1 operation reports a 16 bit data value with an error within 3 LSB of the actual value In Class 3 the input word reports 16 words of data and 16 words of status information When data is being reported in Class 3 the data value is a 16 bit integer whereby all 16 bits are real data depending on the data type
41. Download your program to the SLC 500 processor and put the controller into Run mode During Chapter 6 a normal start up the module status LED and any enabled channel status LED turn on Module Diagnostics and Troubleshooting INPUT 0 3 4 7 Channel Status LEDs 8 11 12 15 Module Status LED ANALOG MODULE 10 Check that the module is operating correctly Reference Optional If the Module Status LED is off or if the Channel 0 LED is off or blinking refer to Chapter 6 Chapter 5 Class 3 Interface Monitor the status of input channel 0 to determine its configuration setting and Channel Configuration operational status This is useful for troubleshooting when the blinking channel LED indicates that an error Data and Status has occurred The example below shows the Class 3 status word for channel 0 with no errors Chapter 6 Module Diagnostics and Troubleshooting Chapter 7 Application Examples 15 14 13 121110 ol ls 7 6 5 1411381214 Bit Number o iala o 1 0o o lolo o o o o o 0 Channel 0 Status Word 1 1 8 e Class 1 Data or Status Configuration e Input Type o e Data Format e Calibrate Channel Status e Filter Frequency e Error Conditions Publication 1746 UM001A US P Chapter J Installation and Wiring This chapter tells you how to e avoid electrosta
42. R T Rin R where Vs input device voltage Rs input device impedance Rin 1746 NI16 input impedance See specifications in Appendix A Vs V measured X in Wiring Input Devices to the 1746 NI16 After the analog input module is properly installed in the chassis follow the wiring procedure below using Belden 8761 cable ATTENTION ATTENTION Care should be taken to avoid connecting a voltage source to a channel configured for current input Improper module operation or damage to the voltage source can occur SK Cut foil shield and drain wire Signal Wire Signal Wire Drain Wire Foil Shield Twist the drain wire and the foil shield together and connect to earth ground or to the chassis mounting screws Publication 1746 UM001A US P 3 14 Installation and Wiring Publication 1746 UM001A US P To wire your 1746 NI16 module follow these steps 1 At each end of the cable strip some casing to expose the individual wires Trim the signal wires to 50 mm 2 in lengths Strip about 5 mm 3 16 in of insulation away to expose the end of the wire At one end of the cable twist the drain wire and foil shield together At the other end of the cable cut the drain wire and foil shield back to the cable Connect the signal wires to the 1746 NI16 terminal block or interposing terminal block Connect the shield drain wire to chassis ground Connect the other end of
43. ach group of four channels Selecting a low value i e 6 Hz for the channel filter frequency provides the best noise rejection for that group of channels Selecting a high value for the channel filter frequency provides less noise rejection but faster data response time See page 4 10 for more information on noise rejection The table on page 4 7 shows the available filter frequencies and module data update times for each filter frequency Channel Frequency Channel Cut Off Frequency The channel filter frequency selection determines a channel s cut off frequency also called the 3 dB frequency The cut off frequency is defined as the point on the input channel frequency response curve where frequency components of the input signal are passed with 3 dB of attenuation All frequency components at or below the cut off frequency are passed by the digital filter with less than 3 dB of attenuation All frequency components above the cut off frequency are increasingly attenuated The cut off frequency for each input channel is defined by its filter frequency selection Choose a filter frequency so that your fastest changing signal is below that of the filter s cut off frequency The cut off frequency should not be confused with update time The cut off frequency relates how the digital filter attenuates frequency components of the input signal The update time defines the rate at which an input channel is scanned and its channel data word i
44. ag de da tdi as e Barr 4 3 Class 1 Memory Map rate bead da Gab oh niece ow des 4 3 Class 3 Memory Map SA see wae Sete 4 4 Output Image Configuration Words 4 5 Input Image Data Words and Status Words 4 5 Module Update Time 2e Mu a 4 6 Channel Filter Frequency Selection 4 9 Channel Frequency Le LATE Tee d amp 408 late dons Andon 4 9 Response to Slot Disabling ws 244 okay de at 4 11 lap t RES DONS Nr PCR AN PANNE Es 4 11 Output Responses Terre PE PS es 4 11 Chapter 5 Channel Configuration 1209 tee oie hee ae twee EG 5 1 Output Image Channel Configuration Procedure 5 2 Channel Configuration Word ese 5 3 Select Channel Enable Bit 15 5 4 Select Channel Filter Frequency Bits 14 through 12 5 4 Select Calibration Mode Bits 11 through 9 5 5 Select Data Format Bits 8 through 6 5 6 Select Input Type Bits 5 and 4 34 Les aoaaa aed oad 5 6 Unused Bit Bit D A si retard en 5 6 Class 1 Handshaking Bit 2 36 its Sones te rest s 5 7 Class 1 Data or Status Configuration Bits 1 and 0 5 7 Input Image Channel Data Word 5 8 Scaling the Channel Data Words sua Yves fea Sexe eed 5 10 Data Type Descriptions acs heat ge gated nee se Reseda 5 10 Scaling Examples is det ve hs t s eR HGH alge ce el Sey 5 12 Engineering Units to Real Units 5 13 Scaled for PID to Real Units Sr or a rer Los 5 14 Proport
45. alues in Class 1 and 16 data word values in Class 3 The converted voltage or current input data values reside in I e 0 through I e 7 Class 1 or I e 0 through I e 15 Class 3 of the module s input image file When an input channel is disabled its data word is reset to zero Word Publication 1746 UM001A US P Class 1 Data Word Bit1 set to Bit set to l e 0 channel 0 data word 14 bit integer 0 0 le channel 1 data word 14 bit integer 0 0 l e 2 channel 2 data word 14 bit integer 0 0 l e 3 channel 3 data word 14 bit integer 0 0 l e 4 channel 4 data word 14 bit integer 0 0 l e 5 channel 5 data word 14 bit integer 0 0 l e 6 channel 6 data word 14 bit integer 0 0 l e 7 channel 7 data word 14 bit integer 0 0 l e 0 channel 8 data word 14 bit integer 0 1 le channel 9 data word 14 bit integer 0 l e 2 channel 10 data word 14 bit integer 0 l e 3 channel 11 data word 14 bit integer 0 l e 4 channel 12 data word 14 bit integer 0 l e 5 channel 13 data word 14 bit integer 0 l e 6 channel 14 data word 14 bit integer 0 l e 7 channel 15 data word 14 bit integer 0 1 In Class 1 bit 1 determines whether data or status resides in the input image Bit O determines whether channels 0 through 7 or 8 through 15 are shown Channel Configuration Data and Status 5 9 Class 3 Data Word l e 0 channel 0 data word 16 bit integer l
46. ange error states There will never be an out of range error when an open circuit is detected The open circuit error bits are cleared when the channel is disabled or when the open circuit condition is removed Under Range Detected The configured channel has detected an under range of the data on an input channel The channel data value is set to the lowest defined value for an under range condition based on the selected input type s signal range The under range bits are cleared when the channel is disabled Over Range Detected The configured channel has detected an over range of the data on an input channel The channel data value is set to the highest defined value for an over range condition based on the selected input type s signal range The over range bits are cleared when the channel is disabled No Error The channel is operating without any errors Publication 1746 UM001A US P 6 6 Module Diagnostics and Troubleshooting Troubleshooting Flowchart Check LEDs on module Module Status Module Status Channel Status Channel Status Channel Status LED off LED on LED s blinking LED off LED on Module fault End Y Channel is not Channel enabled condition Fault Condition enabled and working properly I Check to see tha Check channel module is seated status word properly in chassi bits 15 13
47. annel remote configuration A control system where the chassis can be located several thousand feet from the processor chassis Chassis communication is via the 1747 SN Scanner and 1747 ASB Remote I O Adapter resolution The smallest detectable change in a measurement typically expressed in engineering units e g 1 mV or as a number of bits For example a 12 bit system has 4 096 possible output states It can therefore measure 1 part in 4096 scaling The process of changing a quantity from one notation to another status word Contains status information about the channel s current configuration and operational state You can use this information in your ladder program to determine whether the channel data word is valid step response time This is the time required for the channel data word signal to reach a specified percentage of its expected final value given a large step change in the input signal transducer A device that converts one energy form to another e g mechanical to electrical When a transducer is actuated by signals from one system or medium it can supply a related signal to the other system or medium Publication 1746 UM001A US P Glossary 4 Publication 1746 UM001A US P Numerics 3 dB frequency See filter frequency G 2 A A D converter 1 4 definition G 1 value in data word 5 6 A D groups 5 5 abbreviations G 1 addressing configuration word 4 5 addressing example 4 5 data word 4
48. annel 7 hannel 8 hannel 9 Slolo OI O 5 nanne nanne nanne nanne hanne us Word O e Es NO OO amp amp w ND us Word O Es Q hanne atus Word 4 5 S hannel 1 S S S atus Word Status Word 2 hannel 3 4 e ar nanne T a wn hanne atus Word atus Word hannel 7 Status Word hannel 8 Status Word hannel 6 S ojojo 63 hannel 9 Status Word Channel 10 Status Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word 20 Word 21 Word 22 Word 23 Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word Word 20 Word 21 Word 22 Word 23 Word 24 Word 25 Word Word Word Word Word Word 26 27 28 29 30 31 Address D e 0 D e 1 O e 2 0 e 3 O e 4 D e 5 D e 6 D e 7 0 e 8 0 Ed oo o noA A UU N D D N O 0 e 21 e 22 0 0 0 0 0 0 0 0 0 0 0 0 0 0 e 23 D gt gt 2 Do g o o tn pp wD 5 ppp Preliminary Operating Considerations 4 5 Output Image Configuration Words The module output image defined as the output from the processor to the module contains information that you configure to define the way a specific module channel works Each outp
49. annels of the 1746 NI16 This rung allows subroutine 3 to be scanned until all 16 channels are configured The status words for all 16 channels containing the results of the configuration will be placed consecutively beginning with N7 66 First Pass S 1 B3 0 0000 J E CUD 15 B3 3 B3 0 4 CUD 1 B3 3 CU gt JSR Jump To Subroutine SBR File Number U 3 Once the 16 analog channels are configured B3 1 is latched to instruct the NI16 module to begin sending analog data to the processor for the first 8 channels B3 2 is used in the next rung to instruct the module to send data from the last 8 channels Since there are only 8 input image words in Class 1 mode for receiving data from the 16 channel module this program toggles between the first and last 8 channels and places the data for all 16 channels consecutively beginning with N7 50 B3 3 B3 0 B3 0 0001 14 OSR cL 1 0 1 The COP Instruction copies Control Words for channels 0 to 7 requesting analog data for those channels The data is received from the NI16 in input image words 6 0 through I 6 7 when bits 0 and 1 for each of these input words are both reset When all 8 inputs are updated B3 1 is reset and B3 2 is set to read the data for channels 8 to 15 B3 0 COP 0002 J E Copy File 1 Source N7 20 Dest 0 6 0 Length 8 1 6 0 16 0 MOV E Move 0 1 Source 1 6 0 1747 NI16V 1747 NI16V Dest eae i 0 lt B3 4 gt 0 1 6 1 16 1 MOV 24 E Move 0 1 Source 16 1 HACNUON 1747 NT6V
50. ansmit channel configuration Handshaking Bits 1 0 Class 1 Dataor 00 read data for channels 0 to 7 10 read status for channels 0 to 7 Status Configuration 01 read data for channels 8 to 15 11 read status for channels 8 to 15 Publication 1746 UM001A US P B 2 Configuration Worksheet Publication 1746 UM001A US P Appendix C Two s Complement Binary Numbers The SLC 5007 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 analog modules 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 25 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 Positive Decimal 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 32 767 all positions are 1 except the far left position For example 0000 1001 0000 1110 211 28 22 22422 2048 256 8 4 2 2318 0010 0011 0010 1000
51. are and is a function of the filter frequency selected by the user A lower frequency filter rejects more normal mode noise than a higher frequency filter Transducer power supply noise transducer circuit noise or process variable irregularities may be sources of normal mode noise Preliminary Operating Considerations 4 11 Response to Slot Disabling By writing to the status file in your modular SLC processor you can disable any chassis slot Refer to your programming device s manual for the slot disable enable procedure ATTENTION Always consider the implications of disabling a module before using the slot disable feature Input Response When a slot is disabled the 1746 NI16 module continues to update its input image table However the SLC processor does not read inputs from a module that is disabled Therefore when the processor disables the module slot the module inputs appearing in the processor image table remain in their last state and the module s updated image table is not read When the processor re enables the module slot the current state of the module inputs are read by the processor during the subsequent scan Output Response The SLC 500 processor may change the module output data configuration as it appears in the processor output image However this data is not transferred to the module The outputs are held in their last state When the slot is re enabled the current data in the processor image is trans
52. atalog number 1746 N2 Installation and Wiring 3 9 Terminal Wiring The 1746 NI16 module contains an 18 position removable terminal block The terminal pin out is shown below ATTENTION Disconnect power to the SLC before attempting to install remove or wire the removable terminal wiring block To avoid cracking the removable terminal block alternate the removal of the slotted terminal block release screws Terminal Block Terminal Block Spare Part Catalog Number 1746 RT25G NO N1 N2 N3 N4 N5 N6 N7 Analog Com Analog Com N8 N9 IN 10 N11 IN 12 N13 IN 14 N15 Terminal Block Release Screw Maximum Torque 0 7 to 0 9 Nm 6 to 8 in lbs Pre wired Cables and Terminal Blocks The following 1492 cables and terminal blocks are available to assist in wiring the 1746 NI16 module Allen Bradley Prewired 1492 ACAB005A46 0 5m 1 6 ft Cables 1492 ACAB010A46 1 0 m 3 3 ft 1492 ACAB025A46 2 5 m 8 2 ft 1492 ACAB050A46 5 0 m 16 4 ft Allen Bradley User 1492 AIFM8 3 Terminal Blocks 1492 AlFM16 F 3 Publication 1746 UM001A US P 3 10 Installation and Wiring Wiring Single Ended Inputs 1746 NIT6V sa 4 2 Channel 0 E Voltage hi Y L Lo NO int ransmitter 2 l a
53. aused by a voltage common to its input terminals relative to ground CMRR 20 Logio V1 V2 common mode voltage A voltage that appears in common at both input terminals of a differential analog input with respect to ground configuration word Contains the channel configuration information needed by the module to configure and operate each channel Information is written to the configuration word through the logic supplied in your ladder program dB decibel A logarithmic measure of the ratio of two signal levels data word A 16 bit integer that represents the value of the analog input channel The channel data word is valid only when the channel Publication 1746 UM001A US P Glossary 2 Publication 1746 UM001A US P is enabled and there are no channel errors When the channel is disabled the channel data word is cleared 0 digital filter A filter implemented in firmware using discrete sampled data of the input signal filter A device that passes a signal or range of signals and eliminates all others filter frequency 3 dB frequency The user selectable frequency full scale error gain error The difference in slope between the actual and ideal analog transfer functions full scale range FSR The difference between the maximum and minimum specified analog input values gain drift The change in full scale transition voltage measured over the operating temperature range of the module input data s
54. caling The data formats that you select to define the logical increments of the channel data word These may be scaled for PID or Engineering Units which are automatically scaled They may also be proportional counts which you must calculate to fit the resolution of the quantity being measured in your application input image The input from the 1746 NI16 module to the SLC500 processor The input image contains the module data words and status words local configuration A control system where all the chassis are located within several feet of the processor and chassis to chassis communication is via a 1746 C7 or 1746 C9 ribbon cable LSB Least Significant Bit The bit that represents the smallest value within a string of bits module scan time same as module update time module update time The time required for the module to sample and convert the input signals of all enabled input channels and make the resulting data values available to the SLC500 processor multiplexer An switching system that allows several input 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 Glossary 3 output image The output from the SLC processor to the 1746 NI16 module The output image contains the module configuration information Each output word configures a single ch
55. ce A B3 5 2 0000000000000000 lt Source B 255 255 lt B3 0 CL 1 CLR Clear Dest B3 5 0000000000000000 lt 0004 END gt Publication 1746 UM001A US P 7 8 Application Examples 0000 0001 0002 0003 File 3 CH 0 and 8 Configuration CH 0 Configuration Handshake Status Bit Complete 16 0 B3 2 MOV TE 4 Move 6 0 Source N7 0 1746 NI16V 16142 lt Dest 0 6 0 0 lt CH 0 and 8 Configuration Handshake Control Bit 0 6 0 L gt 2 1746 NI16V E CH 0 and 8 Configuration CH 0 and 8 Configuration CHO Configuration i Handshake Status Bit Complete Handshake Control Bit 16 0 B3 2 0 6 0 q E FE UD 6 0 2 1746 NI16V 1746 NI16V CH 0 Configuration Complete B3 2 A LD 0 MOV Move Source 16 0 0 lt Dest N7 66 0 lt CH 1 and 9 Configuration CH 1 Configuration Handshake Status Bit Complete 16 1 B3 2 MOV JE JE Move 6 1 Source N7 1 1746 NI16V 16142 lt Dest 0 6 1 0 lt CH 1 and 9 Configuration CH 1 and 9 Configuration CH 1 Configuration Handshake Control Bit 0 6 1 CL gt 2 1746 NI16V CH 1 and 9 Configuration Handshake Control Bit Handshake Status Bit Complete 16 1 B3 2 0 6 1 JE W gt 6 1 2 1746 NI16V 1746 NI16V Publication 1746 UM001A US P CH 1 Configuration Complete B3 2 CL gt 1 MOV Move Source 6 1 0 lt Dest N7 67 0 lt 0004 0005 0006
56. ces of electrical noise such as hard contact switches relays and AC motor drives e away from modules which generate significant radiated heat such as the 32 point I O modules series C or earlier In addition route shielded analog input wiring away from any high voltage I O wiring This product is approved for installation within the European Union and EEA regions It has been designed and tested to meet the following directives EMC Directive The 1746 NI16 analog input module is tested to meet Council Directive 89 336 EEC Electromagnetic Compatibility EMC and the following standards in whole or in part documented in a technical construction file e EN 50081 2 EMC Generic Emission Standard Part 2 Industrial Environment e EN 50082 2 EMC Generic Immunity Standard Part 2 Industrial Environment This product is intended for use in an industrial environment Module Installation and Removal Installation and Wiring 3 7 When installing the module in a chassis it is not necessary to remove the terminal block from the module However if the terminal block is removed use the write on label located on the side of the terminal block to identify the module location and type SLOT RACK e MODULE Terminal Block Removal ATTENTION Remove power before removing or inserting this module When you remove or insert a module with power applied an electrical arc may occur An electrical arc can cause
57. ch of these input words When all 8 inputs have been updated B3 2 is reset and B3 1 is set to read the data for channels 0 to 7 B3 0 COP J E Copy File 2 Source N7 28 Dest 0 6 0 Length 8 1 6 0 1 6 0 MOV 3E JE Move 0 1 Source 1 6 0 1746 NI16V 1746 NI16V 0 lt Dest N7 58 0 lt B3 5 CL gt 0 1 6 1 16 1 MOV J E 14 Move 0 1 Source 16 1 1746 NI16V 1746 NIL6V 0 lt Dest N7 59 0 lt B3 5 CL gt 1 1 6 2 1 6 2 MOV J E JE Move 0 1 Source 1 6 2 1746 NI16V 1746 NI16V 0x Dest N7 60 0 lt B3 5 cL 2 Publication 1746 UM001A US P 7 6 Application Examples Publication 1746 UM001A US P File 2 Continued 1 6 3 1 6 3 MOV __ E 4 Move 0 1 Source 1 6 3 1746 NI16V 1746 NI16V 0 lt Dest N7 61 0 lt B3 5 CL gt 3 1 6 4 1 6 4 MOV J E TE Move 0 1 Source 1 6 4 1746 NI16V 1746 NI16V 0 lt Dest N7 62 0 lt B3 5 lt gt 4 1 6 5 1 6 5 MOV J H 34 Move 0 1 Source 1 6 5 1746 NI16V 1746 NI16V 0 lt Dest N7 63 0 lt B3 5 CL gt 5 1 6 6 1 6 6 MOV TE Move 0 1 Source 1 6 6 1746 NI16V 1746 NI16V 0 lt Dest N7 64 0 lt B3 5 CL gt 6 1 6 7 1 6 7 MOV J H aya Move 0 1 Source 1 6 7 1746 NI16V 1746 NI16V 0 lt Dest N7 65 0 lt B3 5 CL gt 7 Application Examples 7 7 File 2 Continued EQU B3 0 Equal W gt Sour
58. current and voltage input types The filter frequency bits are cleared while the channel is disabled Channel Configuration Data and Status 5 21 Calibrate Channel Status Bits 9 through 7 The calibrate channel status bits indicate the completion of the calibration process The code of 0 0 0 indicates that the channel is in the normal run mode or this code can be used to exit the calibration mode If bit 7 is set to 1 the channel is in the calibration mode If bit 8 is set to 1 the channel has successfully calibrated the zero reference point If bit 9 is set to 1 the channel has successfully calibrated the full scale reference point For more information on the calibration procedure see Appendix D Class 1 Handshaking Bit 6 Bit 6 is only necessary when in Class 1 mode Class 3 does not need bit 6 for configuration While in Class 1 bit 6 is 0 signifying that the channel is ready to receive configuration information After processing configuration information for that channel bit 6 is set to 1 Bit 6 must cleared 0 to complete the handshaking cycle Class 3 Data Format Bits 6 through 4 The data format bit field indicates the data format defined for the channel This field reflects the data format selected in the channel configuration word The data format field is cleared when the channel is disabled In Class 3 an extra bit bit 6 is allotted to indicate which user limit range 0 1 2 or 3 was selected Class 1
59. d 0 00 2 16 bit integer 111 5 Channel 5 data word 14 bit integer bits 1 and 0 00 2 16 bit integer 1 1 6 Channel 6 data word 14 bit integer bits 1 and 0 00 2 16 bit integer 1 7 Channel 7 data word 14 bit integer bits 1 and 0 00 2 16 bit integer 1 1 8 Channel 8 data word 14 bit integer bits 1 and 0 01 8 16 bit integer 1 1 9 Channel 9 data word 14 bit integer bits 1 and 0 01 8 16 bit integer 1 1 10 Channel 10 data word 14 bit integer bits 1 and 0 01 8 16 bit integer 1 1 11 Channel 11 data word 14 bit integer bits 1 16 bit integer a and 0 01 111 12 Channel 12 data word 14 bit integer bits 1 and 0 01 8 16 bit integer 1 1 13 Channel 13 data word 14 bit integer bits 1 16 bit integer a and 0 01 1 14 Channel 14 data word 14 bit integer bits 1 3 16 bit integer and 0 01 1 1 15 Channel 15 data word 14 bit integer bits 1 3 16 bit integer and 0 01 1 In Class 1 the error is 3 LSB of the Class 3 resolution 2 Bits 1 and 0 of the data word are overwritten in Class 1 to indicate data from Channels 0 to 7 3 Bits 1 and 0 of the data word are overwritten in Class 1 to indicate data from Channels 8 to 15 Publication 1746 UM001A US P 2 8 Quick Start for Experienced Users 9 Go through the system start up procedure Reference Apply power
60. d field l e 18 channel 2 status word bit mapped field l e 19 channel 3 status word bit mapped field l e 20 channel 4 status word bit mapped field l e 21 channel 5 status word bit mapped field l e 22 channel 6 status word bit mapped field le 23 channel 7 status word bit mapped field l e 24 channel 8 status word bit mapped field le 25 channel 9 status word bit mapped field l e 26 channel 10 status word bit mapped field l e 27 channel 11 status word bit mapped field l e 28 channel 12 status word bit mapped field l e 29 channel 13 status word bit mapped field l e 30 channel 14 status word bit mapped field l e 31 channel 15 status word bit mapped field The channel status word can be analyzed bit by bit In addition to providing information about an enabled or disabled channel each bit s status 0 or 1 tells you how the input data from the voltage or current analog sensor connected to a specific channel is translated for your application The bit status also informs you of any error condition and can tell you what type of error occurred A bit by bit examination of the status word for Class 1 and Class 3 is provided in the respective charts on the following pages Publication 1746 UM001A US P 5 18 Channel Configuration Data and Status Class 1 Status Word Define Class 1 Data or Status Configuration Input Type Data Format Class 1 Handshaking Calibrate Channel Status Filter Frequency Filter frequencie
61. d for the module to sample and convert the input signals of all enabled input channels and provide the resulting data values to the SLC 500 processor For the most part the module update time depends on the filter setting Lower filter frequencies can be selected to reject noise However as noise rejection improves module update time increases Choose the lowest filter frequency consistent with how quickly your program requires fresh analog data Preliminary Operating Considerations 4 1 The 1746 NI16 module sequentially samples the channels in a continuous loop according to the following diagram The next channel in the order is sampled if any channel is disabled Channel 0 Channel 4 Channel 8 Channel 12 Channel 1 Channel 5 Channel 9 Channel 13 Channel 2 Channel 6 Channel 10 Channel 14 Channel 3 Channel 7 Channel 11 Channel 15 Channel Sample Order The following table shows the module update time The module update time is different depending on the number of channels enabled and filter frequency The fastest module update time occurs when only one channel is enabled on each A D chip channels 0 4 8 and 12 The slowest module update time occurs when 16 channels are enabled Filter Frequency Update Time Update Time Update Time Update Time Hz 16 Ch ms 12 Ch ms 8 Ch ms 4 Ch ms 6 630 4
62. d the following 15 rungs copy the analog data from the 1746 NI16 module s 16 channels The data is moved and is therefore considered valid only when the channels associated status word Error Condition bits 13 to 15 are all set indicating No Error N7 46 N7 46 N7 46 MOV 3 E 3 E 3 E Move 13 14 15 Source 16 0 0 lt Dest N7 30 0 lt N7 47 N7 47 N7 47 MOV 3 E 3 E 3 E Move 13 14 15 Source 16 1 0 lt Dest N7 31 0 lt N7 48 N7 48 N7 48 MOV 3 E 3 E 3 E Move 13 14 15 Source 16 2 0 lt Dest N7 32 0 lt N7 49 N7 49 N7 49 MOV 3 E 3 E 3 E Move 13 14 15 Source 16 3 0 lt Dest N7 33 0 lt N7 50 N7 50 N7 50 Mov 3 E 3 E 3 E Move 13 14 15 Source 16 4 0 lt Dest N7 34 0 lt N7 51 N7 51 N7 51 MOV 3 E 3 E 3 E Move 13 14 15 Source 16 5 0 lt Dest N7 35 0 lt 19 Publication 1746 UM001A US P 7 20 Application Examples File 2 Continued N7 52 N7 52 N7 52 MOV 0008 J E J E J E Move 13 14 15 Source 1 6 6 0 lt Dest N7 36 0 lt N7 53 N7 53 N7 53 MOV 0009 J E J E J E Move 13 14 15 Source 16 7 0 lt Dest N7 37 0 lt N7 54 N7 54 N7 54 MOV 0010 J E J E J E Move 13 14 15 Source 1 6 8 0 lt Dest N7 38 0 lt N7 55 N7 55 N7 55 MOV 0011 J E J E J E Move 13 14 15 Source 1 6 9 0 lt Dest N7 39 0 lt N7 56 N7 56 N7 56 MOV 0012 J E J E J E Move 13 14 15 Source 1 6 10 0 lt Des
63. ds e SLC 500 A I Series Programming Software supports Class 3 configuration After entering the ID code NI16I 10403 NI16V 10406 enter 32 input words and 32 output words e RSLogix 5007 version 1 30 or later supports Class 3 configuration After entering the ID code NI16I 10403 NI16V 10406 select Class 3 operation e Earlier versions of RSLogix 500 only support configuration for Class 1 operation Contact Rockwell Software for information on upgrading your software The 1746 NI16 analog input module has multi class interface capabilities Class 1 is the default configuration The module can be configured through the user program for Class 3 which enables user defined data scaling and monitoring of channel status words Use Class 3 operation whenever possible Configuration Class 1 Class 3 Compatible SLC SLC 500 fixed SLC 5 01 SLC SLC 5 02 SLC 5 03 SLC 5 04 and Processors 5 02 SLC 5 03 SLC 5 04 and SLC 5 05 SLC 5 05 Compatible local chassis or remote local chassis or remote ControlNet Chassis chassis with a 1747 ASB chassis with a 1747 ACN R module module Input and Output output image output image Images 8 words available for 24 words available for configuring all configuring 16 channels 16 channels input image input image 8 words available for 16 data 32 words available for 16 data words words and 16 status words and 16 status words Default Class 1 is the default on Class 3 is pr
64. dule uses these limits and scales proportionately between them For example if words 16 and 17 are selected to represent low and high scaling ranges and word 16 contains 0 decimal and word 17 contains 20000 decimal this would represent the range of values to which the voltage or current readings would be scaled The lowest voltage or current reading would be scaled to 0 and the highest voltage or current reading would be scaled to 20000 with other readings scaled proportionately between them If the module is in Class 1 mode and you attempt to configure for user defined proportional counting a configuration error is generated Using Scaled for PID and Proportional Counts The scaled for PID and proportional count selections provide the highest display resolution but also require you to manually convert the channel data to real units Publication 1746 UM001A US P 5 12 Channel Configuration Data and Status Publication 1746 UM001A US P Scaling Examples The following scaling examples show how to convert the channel data word from the configured data type to real units Real units are the values being measured such as temperature and pressure To perform the scaling you must know the defined voltage or current range for the channel s input type The lowest possible actual value for an input type is ScaledMin and the highest possible actual value is ScaledMax Refer to the Channel Data Word Value tables on page 5
65. e channel 1 data word 16 bit integer l e 2 channel 2 data word 16 bit integer l e 3 channel 3 data word 16 bit integer l e 4 channel 4 data word 16 bit integer l e 5 channel 5 data word 16 bit integer l e 6 channel 6 data word 16 bit integer l e 7 channel 7 data word 16 bit integer l e 8 channel 8 data word 16 bit integer l e 9 channel 9 data word 16 bit integer le 10 channel 10 data word 16 bit integer le 11 channel 11 data word 16 bit integer le 12 channel 12 data word 16 bit integer le 13 channel 13 data word 16 bit integer l e 14 channel 14 data word 16 bit integer le 15 channel 15 data word 16 bit integer The channel data word contains a 16 bit integer that represents the value of the analog input channel The tables below show the channel data word values for various input types and data formats The second table shows the default full scale values for the proportional counts data format The table does not imply the entire data value range is usable resolution Channel Data Word Values for Engineering Units Input Type Signal Range Engineering Units Engineering Units Scale 10V de 10 25V to 10 25V 10250 to 10250 1 mV step 0 to 5V de 0 25V to 5 25V 250 to 5250 1 mV step 1 to 5V de 0 75V to 5 25V 750 to 5250 1 mV step 0 to 10V de 0 5V to 10 25V 500 to 10250 1 mV step 0 to 20 mA 1 0 mA to 21 mA 1000 to 21000 1 0 pA step 4 to 20 mA 3 0 mA to 21mA 3000 to 21000 1 0 pA ste
66. e the total load on the system power supply using the procedure Appendix A described in the SLC Installation amp Operation Manual for Modular Style Controllers publication 1747 6 2 or Specifications the SLC 500 Family System Overview publication 1747 2 30 e The 1746 N116 backplane current consumption is 125 mA at 5V de and 75 mA at 24V dc Publication 1746 UM001A US P Quick Start for Experienced Users 2 3 3 Insert the 1746 NI16 module into the chassis Reference ATTENTION Never install remove or wire modules with power applied to the chassis or devices wired to the module Make sure system power is off then insert the module into your 1746 chassis In this example procedure local slot 1 is selected Any slot may be used except 0 Chapter 3 Installation and Wiring ene all Top and Bottom REQ Module Releases 4 Connect sensor cable Reference Connect sensor cable to the module s terminal block Important Follow these guidelines when wiring the module e Use shielded communication cable Belden 8761 and keep length as short as possible e Connect only one end of the cable shield to earth ground e Connect all the shields to the earth ground at the SLC 500 chassis mounting tab Chapter 3 e Single ended source commons may be jumpered together at the terminal block Installation and e Channels are not isolated from each other All analog commons are connected together i
67. el enable bit is set 1 the channel data word and status word remain cleared until the module sets the channel status bits bits 15 14 and 13 to 1 1 and 1 in the channel status word signifying that the channel is operating without an error See Channel Status Checking on page 5 16 Select Channel Filter Frequency Bits 14 through 12 The 1746 NI16 module features eight different filter frequencies Choose the desired filter by entering the 3 digit binary code in bits 12 through 14 of the channel configuration word You can select a different filter setting for each A D chip Each chip samples a group of 4 input channels The groups of A D inputs are shown in the table on page 5 5 The filter selection for all of the channels in a group is selected using the configuration word of the first channel in each group These channels are channels 0 4 8 and 12 Even if the first channel in each group is disabled the desired filter frequency must be selected in that channel s configuration word otherwise the default filter frequency of GHz is used Setting the filter frequency in the other channels 1 to 3 5 to 7 9 to 11 or 13 to 15 will not select a filter Instead the default filter is selected The default filter setting is 6 Hz The default filter setting is the bit pattern 0 0 0 in bits 14 through 12 Channel Configuration Data and Status 5 5 A D Channels in How to select Filter Frequencies for the different A D Gr
68. er Range Detected 1 1 0 No Error 1011 NOTE Bits 1 and 0 indicate origin in Class 1 mode Bits 15 through 2 contain real data for each channel If the module is in Class 3 mode all 16 bits are real data depending on the data type Publication 1746 UM001A US P 5 20 Channel Configuration Data and Status Input Word Bit Definitions Publication 1746 UM001A US P If the channel whose status you are checking is disabled bit O e x 15 0 all bit fields are cleared The status word for any disabled channel is always 0000 0000 0000 0000 regardless of any previous setting that may have been made to the configuration word in Class 3 Error Conditions Bits 15 through 13 There are eight possible error codes to describe any given state of the 1746 NI16 module The following table shows the different error codes and their associated bit settings For more information on the error codes see Error Codes on page 6 5 Error Condition Bit15 Bit14 Bit13 Channel Disabled 0 0 0 Faulty Calibration 0 0 1 Invalid Calibration Reference 0 1 0 Configuration Error 0 1 Open Circuit Detected 1 0 0 Under Range Detected 1 0 Over Range Detected 1 1 0 No Error 1 1 Filter Frequency Bits 12 through 10 The channel filter frequency bits reflects the filter frequency selected in the configuration word Filter frequencies are active for all
69. est 0 6 4 0 lt CH 4 and 12 Configuration Handshake Control Bit 0 6 4 a 2 1746 NI16V CH 4 and 12 Configuration CH 4 Configuration CH 4 and 12 Configuration Handshake Status Bit Complete Handshake Control Bit 1 6 4 B3 2 0 6 4 0009 J TE CUD 6 4 2 1746 N116V 1746 NI16V CH 4 Configuration Complete B3 2 CL gt 4 MOV Move Source 16 4 0 lt Dest N7 70 0 lt CH 5 and 13 Configuration CH 5 Configuration Handshake Status Bit Complete 1 6 5 B3 2 MOV 0010 E E Move 6 5 Source N7 5 1746 NI16V 16142 lt Dest 0 6 5 0 lt Publication 1746 UM001A US P CH 5 and 13 Configuration Handshake Control Bit 0 6 5 lt gt 2 1746 NI16V Application Examples 7 11 File 3 Continued CH 5 and 13 Configuration CH 5 Configuration CH 5 and 13 Configuration Handshake Status Bit Complete Handshake Control Bit 1 6 5 B3 2 0 6 5 0011 4 E e W gt 6 5 2 1746 NI16V 1746 NI16V CH 5 Configuration Complete B3 2 CL gt 5 MOV Move Source L6 5 0 lt Dest N7 71 0 lt CH 6 and 14 Configuration CH 6 Configuration Handshake Status Bit Complete 1 6 6 B3 2 MOV 0012 JE 4 Move 6 6 Source N7 6 1746 NI16V 16142 lt Dest 0 6 6 0 lt CH 6 and 14 Configuration Handshake Control Bit 0 6 6 A gt 2 1746 NI16V CH 6 and 14 Configuration CH 6 Configuration CH 6 and 14 Configuration Handshake Status Bit Complete Ha
70. et bit 6 of the status word to 0 reset bit 2 in the configuration word to 0 After channels 0 through 7 are configured then channels 8 through 15 can be configured An application example for Class 1 using bits 2 and 6 to perform configuration handshaking for all 16 channels can be found on page 7 1 The handshaking between bits 2 and 6 is not needed in Class 3 since all 32 words of data and status can be sent and received at once Class 1 Data or Status Configuration Bits 1 and 0 Bits 1 and 0 are only used in Class 1 mode If these bits are set while in Class 3 mode a configuration error is set in the status word bits 15 14 and 13 set to 0 1 and 1 The use of these bits is not necessary in Class 3 because Class 3 allows for data transfer of a 32 word block In Class 1 mode data transfer is limited to 8 word blocks The 1746 NI16 has the ability to communicate 16 words of data and 16 words of status information Therefore the user can choose which block of 8 words is needed via bits 1 and 0 in the configuration word This is done in the following manner SetBitOto to select channels Set Bit 1 to to select 0 0 through 7 data 1 8 through 15 status information NOTE For a description of data reporting in the status word see Input Word Bit Definitions on page 5 20 Publication 1746 UM001A US P 5 8 Channel Configuration Data and Status Input Image Channel Data The module input image uses 8 data word v
71. etting the filter in channels 13 15 will not select a filter rather the default filter is selected The filter frequency affects the noise rejection characteristics A lower filter frequency increases noise rejection and a higher filter frequency decreases noise rejection Select a filter frequency considering acceptable noise and step response time See Channel Filter Frequency Selection on page 4 9 for more information on filter frequency Select Calibration Mode Bits 11 through 9 To enter the calibration routine set bit 9 to 1 You must perform the low calibration first and then the high calibration to successfully calibrate the module Low Calibration Short channel input to analog common terminal Then set bit 10 of the channel to be calibrated to 1 Clear bit 10 when completed High Calibration Apply 10 25V dc 200 pV or 21 mA 200 nA between channel input and analog common Then set bit 11 of the channel to be calibrated to 1 Clear bits 11 and 9 when completed Publication 1746 UM001A US P 5 6 Channel Configuration Data and Status Publication 1746 UM001A US P Select Data Format Bits 8 through 6 Select a data format for the data word value Your selection determines how the analog input value from the A D converter is expressed in the data word Enter your 3 digit binary code in bit fields 8 through 6 of the channel configuration word The data types are e Engineering Units e Scaled
72. ferred to the module Publication 1746 UM001A US P 4 12 Preliminary Operating Considerations Publication 1746 UM001A US P Chapter 5 Channel Configuration Data and Status This chapter examines the channel configuration word and the channel status word bit by bit and explains how the module uses configuration data and generates status during operation It gives you information about how to e configure a channel e scale the channel data e check a channel s status Channel Configuration The channel configuration word is a part of the 1746 NI16 module s output image as shown below The module output image uses 8 words when the module is in Class 1 mode and 32 words when the module is in Class 3 mode A description of the output image is shown below 1746 NI16 Module Output Image Channel Configuration Class 1 Class 3 0 e 0 channel 0 configuration word bit mapped field O e 1 channel 1 configuration word bit mapped field D e 2 channel 2 configuration word bit mapped field 0 e 3 channel 3 configuration word bit mapped field D e 4 channel 4 configuration word bit mapped field 0 e 5 channel 5 configuration word bit mapped field D e 6 channel 6 configuration word bit mapped field D e 7 channel 7 configuration word bit mapped field 0 e 8 channel 8 configuration word bit mapped field D e 9 channel 9 configuration w
73. figuration utilizes 8 input words and 8 output words Class 3 configuration utilizes 32 input words and 32 output words Fixed and SLC 5 01 processors can only operate as Class 1 When the module is used in a remote I O chassis with a 1747 ASB it can only operate in Class 1 mode The SLC 5 02 SLC 5 03 SLC 5 04 and SLC 5 05 processors can be configured for either Class 1 or Class 3 When the module is used in a remote ControlNet chassis with a 1747 ACN R it can also operate in either Class 1 or Class 3 mode Operate the module in Class 3 mode whenever possible The 16 high impedance input channels can be wired as single ended inputs The module provides a direct interface to the following input types 10V de e 1to5V dc e 0 to 5V de e 0 to 10V de e 0 to 20 mA e to 20 mA e 20 mA e Oto 1 mA 1 Requires use of block transfer in a remote configuration Publication 1746 UM001A US P 1 2 Overview Channel Status The data presented to the processor can be configured as e Engineering Units e Scaled for PID e Proportional Counts 32 768 to 32 767 range e Proportional Counts with User Defined Range Class 3 Only e 1746 NI4 Data Format Each input channel also provides open circuit out of range and invalid configuration indication via the LED s These conditions are also displayed in the channel status word Hardware Features The module fits into any slot except the p
74. for PID e Proportional Counts e 1746 NI4 Data Format User defined Scaling Class 3 Only For all data types the channel data word is proportional to the analog input signal To have the data in real units the channel data word must be scaled mathematically See Input Image Channel Data Word on page 5 8 for the default scaling values and Scaling the Channel Data Word on page 5 10 for data type descriptions and scaling examples Select Input Type Bits 5 and 4 The input type bit field lets you configure the channel for the type of input device you have connected to the module Valid input is an analog voltage or current that provides a signal within one of the specified ranges Determine the input device type for a channel and enter its respective 2 digit binary code in bit fields 5 and 4 of the channel configuration word Unused Bit Bit 3 Bit 3 is not used on the 1746 NI161 or 1746 NI16V modules Ensure this bit is always set to zero or the module returns a configuration error in the status word for that channel Channel Configuration Data and Status 5 7 Class 1 Handshaking Bit 2 In Class 1 the module provides handshaking to simplify configuration This handshaking feature is the fastest way to configure the module s 16 channels To transmit a channel s configuration bit 2 should be set to 1 When the module has completed this instruction a 1 is placed in bit 6 of the status word To res
75. fourth channel disabled For example if you enable channels 0 1 2 4 5 6 8 9 10 12 13 and 14 your module update time is about 75 ms with the 40 Hz filter instead of 100 ms listed in the table if all 16 inputs are enabled Similarly if you need 8 or fewer channels you can achieve a module update time of about one half the 16 channel table values For example if you enable only channels 0 1 4 5 8 9 12 13 the module update time is about 50 ms with a 40 Hz filter Finally for very fast response you may use four or fewer channels This mode exploits the power of dedicating one A D converter per channel The A Ds are considerably faster when they do not have to multiplex inputs NOTE In this mode the module provides four channels of data every 4 ms regardless of filter setting MN same channels are used on each of the four A D converters In the 12 or fewer channels example above note that you are using channels 0 1 and 2 on each of the four A D converters but channel 3 on each remains disabled If you just enablethefirst 12channels 0to11 onthemodule and leavechannels 12to15 disabled yourupdatetimeisthe same as if you had enabled all 16 channels Channel Filter Frequency Selection Preliminary Operating Considerations 4 9 The module uses a digital low pass filter that provides noise rejection for the input signals The digital filter is programmable allowing you to select from eight filter frequencies for e
76. he status of channels 0 through 15 The status bits for a particular channel reflect the configuration settings that you entered into the output image configuration word for that Publication 1746 UM001A US P 4 6 Preliminary Operating Considerations Module Update Time Publication 1746 UM001A US P channel and provide information about the channel s operational state To receive valid status information the channel must be enabled and the channel must have processed any configuration changes that may have been made to the configuration word Class 1 Input Words Status The status words for Class 1 are the input words O through 8 Setting bits 1 and 0 in the output configuration word to 10 or 11 returns status for channels 0 through 7 or 8 through 15 respectively Class 3 Input Words Status The status words for Class 1 are the input words 16 through 31 Status for all 16 channels can be viewed at the same time as data for all 16 channels Class 3 Example To obtain the status of channel 2 input word 18 of the analog module located in slot 4 in the SLC chassis use address 1 4 18 Slot Word N e PR Element Delimiter Word Delimiter File Type Chapter 5 Channel Configuration Data and Status gives you detailed bit information about the content of the data word and the status word Also see Chapter 7 for a detailed explanation and application examples The module update time is defined as the time require
77. ional Counts to Real Units 5 14 1746 NI4 Data Format Units to Real Units 5 15 User Defined Scaling Data Format to Real Units 5 15 Channel Status Checkin Si sidi Be Mes RSR SA 5 16 Class T Status Word Lu n pos ae Na tan Perte 5 18 Class 3 Status NOR IS NI as 5 19 Input Word Bit Definitions 5 shine Gow elas tt wk 5 20 Error Conditions Bits 15 through 13 5 20 Module Diagnostics and Troubleshooting Application Examples Specifications Table of Contents iii Filter Frequency Bits 12 through 10 5 20 Calibrate Channel Status Bits 9 through 7 5 21 Class 1 Handshaking Bit 6 5 21 Class 3 Data Format Bits 6 through 4 5 21 Class 1 Data Format Bits 5 and 4 5 21 Input Type Bits 3 and odas 5 22 Class 1 Data or Status Configuration Bits 1 and 0 5 22 Chapter 6 Module operation vs Channel Operation 6 1 Power Up Diagnostics ps bas 6 1 Channel Diagnostics e sain ssh esse STAR IE sata as 6 2 Invalid Channel Configuration 6 2 Out Of Range Dele cs a s n 6 2 Open Circuit Detection 6 3 62 Bs hove loco ua ae lo is de bat 6 3 LED State Tables as TS AN 6 4 Module Status LED Green Tse praia 6 4 Channel Status LEDs Greco aaa ira des 6 5 Error Codes a ii 6 5 Troubleshooting Flowchart ios ia Leal 6 6 Replacement parts tra Sea 6 7
78. l LEDs If Module And Indicated Condition Corrective action Status LED Channel is Status LED is On Channel Enabled No action required Open Circuit Condition To determine the exact error check the error bits in the input image bits 15 through 13 Out of Range Condition Check the channel configuration word for Blinking valid data Make sure that the data format is Channel Configuration indicated correctly in status bits Class 1 data On Error format status bits are bits 5 and 4 Class 3 data format status bits are bits 6 4 See the Troubleshooting Flowchart on page 6 6 and Chapter 5 for more information Power Up No action required Channel Not Enabled No action required For an example showing Off how to enable a channel see Chapter 2 Quick Start or Chapter 7 Application Examples Module Status LED Green The module status LED is used to indicate module related diagnostic or operating errors These non recoverable errors may be detected at power up or during module operation Once in a module error state the 1746 NI16 module no longer communicates with the SLC processor Channel states are disabled and data words are cleared Failure of any diagnostic test results in a non recoverable error and requires the assistance of your local distributor or Allen Bradley Module Diagnostics and Troubleshooting 6 5 Error Codes Channel Status LEDs Green The channel status LED is used to indicate
79. le is in a run state 5 Channel Examines the channel configuration word and Configuration the channel status word bit by bit and explains Data and Status how the module uses configuration data and generates status during operation 6 Module Diagnostics Explains how to interpret and correct problems and Troubleshooting that may occur while using the module 7 Application Examples Examines both basic and supplementary applications and gives examples of the ladder logic necessary to achieve the desired result Appendix A Specifications Provides physical electrical environmental and functional specifications for the module Appendix B Configuration Provides a worksheet to help configure the Worksheet module for operation Appendix C Two s Complement Describes the two s compliment binary number Binary Numbers system Appendix D Calibration Describes how to calibrate the 1746 NI16 module Glossary Lists key terms and abbreviations Related Documentation Preface 3 The following documents contain information that may be helpful to you as you use Allen Bradley SLC products If you would like a manual you can e download a free electronic version from the internet www theautomationbookstore com e purchase a printed manual by contacting your local distributor or Rockwell Automation representative visiting www theautomationbookstore com and placing your order calling 1 800 963 9548 USA Canada
80. logic to copy the contents of N10 0 to output word 0 1 0 DATA FILE N10 Offset 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 N10 0 1 01 00 00 00 00 00 00 0 First Pass Bit italie 1746 NIIB sb for one scan enabling the MOV s 1 COP instruction that transfers the channel COPY FILE configuration word 0 This configures 15 Source N10 0 and enables channel 0 Dest 0 1 0 Length 1 Publication 1746 UM001A US P Quick Start for Experienced Users 2 7 Write the ladder program Reference Write the remainder of the ladder logic program that specifies how your analog ipit Chapter5 data is processed for your application In this procedure the module is located in slot 1 Channel Configuration Data and Status Chapter 7 15 14 13 1211 10 9 8 7 6 5 4 3 2 1 0 Bit Number o oro Jo Jo To o fo o o o 0 o o 0 Channel 0 data Word Application Examples 0 vanableinpuedatal Your programming device s user manual 1746 N116 Module Input Image Data Word Class 1 Class 3 1 1 0 Channel 0 data word 14 bit integer bits 1 and 0 00 2 16 bit integer 1 1 1 Channel 1 data word 14 bit integer bits 1 and 0 00 2 16 bit integer 12 Channel 2 data word 14 bit integer bits 1 and 0 00 2 16 bit integer 1 1 3 Channel 3 data word 14 bit integer bits 1 and 0 00 2 1 6 bit integer 1 1 4 Channel 4 data word 14 bit integer bits 1 an
81. ly 1746 NI4 Data Format Input Impedance N6V 20 MQ N 6l 249Q Maximum Voltage NI16V 30V between any two signal terminals man NI16l 8V between any two signal terminals Damage Current Input maximum 30 mA Between analog com and any input terminal Time to Detect Open Circuit Less than 5 seconds Module Update Time See Chapter 4 Channel Filter Frequency Selection page 4 6 Input Resolution NI16V 312 pA NI161 640 nA Display Resolution 1mVor1 pA Module Error Over NI16V Voltage input types 10V dc 1 to 5V dc 0 to 5V dc 0 Full Temperature to 10V dc 0 1 Range o o NI16 Current input types 0 to 20 mA 4 to 20 mA 0 to 1 mA 0 C to 60 C 32 F 20 mA 0 3 to 140 F HR Input Offset Drift NI16V Voltage input type 90 uV C offset drift with with Temperature temperature NI16l Current input type 360 nA C offset drift with temperature Gain Drift with NI16V 15 ppm C Temperature Niel 20 ppm C Calibrated Accuracy NI16V Better than 0 05 of range re NI16l Better than 0 15 of range Publication 1746 UM001A US P A 4 Specifications Publication 1746 UM001A US P Appendix B Bit Definitions Configuration Worksheet The following worksheet is provided to help you configure each of the channels on your module See Chapter 5 for detailed configuration
82. n the world Local Product Support Contact your local Allen Bradley representative for e sales and order support e product technical training e warranty support e support service agreements Technical Product Assistance If you need to contact Allen Bradley for technical assistance please review the information in the Troubleshooting chapter first Then call your local Allen Bradley representative Your Questions or Comments on this Manual If you find a problem with this manual please notify us of it on the enclosed Publication Problem Report If you have any suggestions for how this manual could be made more useful to you please contact us at the address below Allen Bradley Control and Information Group Technical Communication Dept A602V T122 P O Box 2086 Milwaukee WI 53201 2086 General Description Chapter 1 Overview This chapter describes the 1746 NI16 analog input module and explains how the SLC 500 processor gathers analog input data from the module Included is information about e the module s hardware and diagnostic features e an overview of system operation The module receives and stores digitally converted analog data into its image table for retrieval by all fixed and modular SLC 500 processors The modules 1746 NI16V and 1746 NI16I support connections for up to 16 voltage or current analog sensors The 1746 NI16 is a multi class Class 1 or Class 3 single slot module Class 10 con
83. nding status word shows all zeros This condition tells you that input data contained in the data word for that channel is not valid and should be ignored Class 1 Status Word Bit 1 setto Bit 0 set to l e 0 channel 0 status word bit mapped field 1 0 le channel 1 status word bit mapped field l e 2 channel 2 status word bit mapped field l e 3 channel 3 status word bit mapped field l e 4 channel 4 status word bit mapped field l e 5 channel 5 status word bit mapped field l e 6 channel 6 status word bit mapped field l e 7 channel 7 status word bit mapped field a CO CO GD ojl GO CO l e 0 channel 8 status word bit mapped field le channel 9 status word bit mapped field l e 2 channel 10 status word bit mapped field l e 3 channel 11 status word bit mapped field l e 4 channel 12 status word bit mapped field l e 5 channel 13 status word bit mapped field l e 6 channel 14 status word bit mapped field l e 7 channel 15 status word bit mapped field 1 In Class 1 bit 1 determines whether data or status resides in the input image Bit 0 determines whether channels 0 through 7 or 8 through 15 are shown Channel Configuration Data and Status 5 17 Class 3 Status Word le 16 channel 0 status word bit mapped field le 17 channel 1 status word bit mappe
84. ndshake Control Bit 1 6 6 B3 2 0 6 6 0013 JE 34 CUD 6 6 2 1746 NI16V 1746 NI16V CH 6 Configuration Complete B3 2 CLA 6 MOV Move Source 1 6 6 0 lt Dest N7 72 0 lt CH7 and 15 Configuration CH 7 Configuration Handshake Status Bit Complete 16 7 B3 2 MOV 0014 JE LE Move 6 7 Source N7 7 1746 NI16V 16142 lt Dest 0 6 7 0 lt CH 7 and 15 Configuration Handshake Control Bit 0 6 7 AAA CL E 2 1746 NI16V Publication 1746 UM001A US P 1 12 Application Examples File 3 Continued CH7 and 15 Configuration CH 7 Configuration CH7 and 15 Configuration Handshake Status Bit Complete Handshake Control Bit 16 7 B3 2 0 6 7 0015 E 134 CU 6 7 2 1746 NI16V 1746 NI16V CH7 Configuration Complete B3 2 CL gt 7 MOV Move Source 16 7 0 lt Dest N7 73 0 lt CH 0 Configuration CH 0 and 8 Configuration CH 8 Configuration Complete Handshake Status Bit Complete B3 2 1 6 0 B3 2 MOV 0016 J E 134 14 Move 0 6 8 Source N7 8 1746 NI16V eri est AO 0 lt CH 0 and 8 Configuration Handshake Control Bit 0 6 0 CL 2 1746 NI16V CH 0 and 8 Configuration CH 0 and 8 Configuration CH 8 Confiaurati qurati 1 onfiguration CH 0 and 8 Configuration Handshake Control Bit Handshake Status Bit Completo Handshake Colt Bit 0 6 0 1 6 0 B3 2 0 6 0 0017 J E J E rds CUD 2 6 8 2 1746 NI16V 1746 NI16V 1746 NI16V CH 8 Configuration Complete B3 2
85. nge is 0 to 100 GPM The Input range is 32768 to 32767 Find Input value in GPM Per the equations above 1000 32767 a VOUS Slope Offset 0 32768 x 0 0015 49 15 Scaled Value 10000 x 0 0015 49 15 64 15 GPM User Defined Scaling Data Format to Real Units Example 6 A transducer is being used to measure pressure The 10V de to 10V de signal range is proportional to 0 to 200 psi The input data is in User Defined Format where The lower input limit configuration word 8 0 The upper input limit configuration word 9 20000 Input value to convert 16600 Scaled range is 0 to 200 psi Input range is 0 to 20000 Find Input value in psi Per the equation above 200 0 _ 0 01 Slope 9000 0 Offset 0 0x0 01 0 Scaled Value 16600 x 0 01 166 psi Publication 1746 UM001A US P 5 16 Channel Configuration Data and Status Channel Status Checking Publication 1746 UM001A US P If the module is in Class 3 mode there are 8 additional input image words available for status information The channel status word is a part of the module s input image Input words 16 to 31 correspond to and contain the configuration status of channels 0 to 15 You can use the data provided in the status word to determine if the input configuration data for any channel is valid per your configuration in O e 0 through O e 15 For example whenever a channel is disabled O e x 15 0 its correspo
86. nternally Wiring e Common mode voltage range is 10 25 volts The voltage between any two terminals must be less than 20 5 volts e The module does not provide power for the analog input transmitters or sensors e Use a power supply that matches the transmitter sensor specifications Terminal Block no IN2 5 IN4 e IN6 IO Analog Com Sensor Cable A Analog Com Publication 1746 UM001A US P 2 4 Quick Start for Experienced Users 5 Configure the system Reference Configure your system I O for the particular slot the 1746 N116 is in slot 1 in this example Enter the module ID Chapter 4 code The ID code is for Class 1 interface or Class 3 interface See Chapter 4 for more information on Class 1 and Preliminary Class 3 interfaces Operating Considerations Important Not all programming software supports configuration for Class 3 operation e Advanced Programming Software APS supports Class 3 configuration after entering the ID code Appendix C e SLC 500 AI Series Programming Software supports Class 3 configuration after entering the ID code Converting from e RSLogix 500 version 1 30 or later supports Class 3 configuration after entering the ID code 1746 NI4 or e Earlier versions of RSLogix 500 only supports configuration for Class 1 operation Contact Rockwell 1746 NI8 to Software for information on upgrading your software 1746 N 16 Device
87. of SLC 500 products You should understand electronic process control and be able to interpret the ladder logic instructions required to generate the electronic signals that control your application If you do not contact your local Allen Bradley representative for the proper training before using this product This manual is a learning and reference guide for the 1746 NI16 Analog Input Module It contains the information you need to install wire and configure the module It also provides diagnostic and troubleshooting information and application examples Publication 1746 UM001A US P Preface Publication 1746 UM001A US P 2 Contents of this Manual Chapter Title Content Preface Describes the purpose background and scope of this manual Also specifies the audience for whom this manual is intended and gives directions to using Allen Bradley support services Provides listing of related documentation 1 Overview Provides a hardware and system overview Explains and illustrates the theory behind the input module 2 Quick Start for Serves as a Quick Start Guide for the Experienced Users experienced user 3 Installation and Provides installation information and wiring Wiring guidelines 4 Preliminary Operating Gives you the background information you need Considerations to understand how to address and configure the module for optimum operation as well as how to make changes once the modu
88. ogrammable by user power up Preliminary Operating Considerations 4 3 Module Addressing SLC 5 0X Data Files Input Image The following memory maps show you how the input image and output image tables are defined for Class 1 and Class 3 Class 1 Memory Map Analog Input Module Image Table Output Image 8 Words Input Image 8 Words Class 1 NOTE Bit 15 Bit 0 Address el 0 or 8 Configuration Word0 0 e 0 Word 1 0 e 1 el 1 or 9 Configuration el 2 or 10 Configuration Word2 0 e 2 Word3 O e3 Word 4 0 e 4 Word5 O e 5 Word6 0 e 6 Word7 O e 7 el 3 or 11 Configuration Channel 4 or 12 Configuration Output el 5 or 13 Configuration Image el 6 or 14 Configuration el 7 or 15 Configuration Address Channel 2 or 10 Data or Status Words Word2 l e 2 Channel 3 or 11 Data or Status Words Word3 l e 3 Channel 4 or 12 Data or Status Words Word4 l e 4 Channel 5 or 13 Data or Status Words Word5 l e 5 Channel 6 or 14 Data or Status Words Word6 l e 6 Channel 7 or 15 Data or Status Words Word 7 l e 7 Bit 15 Bit 0 The 8 output image words can either configure channels 0 to 7 or 8 to 15 depending on how bit 0 is set The 8 input image words show either data or status for channels 0 to 7 or 8 to 15 Bits 0 and 1 in the configuration word determine whether stat
89. or assistance please have the following information available when you call e a clear statement of the problem including a description of what the system is actually doing Note and record the LED states also note input and output image words for the module e a list of things you have already tried to remedy the problem e processor type and firmware FRN number See label on left side of processor e hardware types in the system including I O modules and chassis e fault code if the SLC processor is faulted Publication 1746 UM001A US P 6 8 Module Diagnostics and Troubleshooting Publication 1746 UM001A US P Operating Classes Class 1 Example Chapter Application Examples This chapter provides two application examples to help you use the analog input module They are defined as a e Class 1 example e Class 3 example Class 1 The Class 1 example shows how to configure read status and read data from the NI16 module Class 1 mode provides 8 words of input image and 8 words of output image for communicating with the NI16 module Therefore this example shows how to multiplex 16 words of configuration data to the module with 8 output image words by utilizing a handshaking scheme Conversely it also shows how to read analog data from 16 channels with 8 input image words Class 3 The Class 3 example shows how to configure monitor status and read data from the NI16 module Class 3 mode provides 32
90. ord bit mapped field 0 e 10 channel 10 configuration word bit mapped field 0 e 11 channel 11 configuration word bit mapped field 0 e 12 channel 12 configuration word bit mapped field 0 e 13 channel 13 configuration word bit mapped field 0 e 14 channel 14 configuration word bit mapped field 0 e 15 channel 15 configuration word bit mapped field 0 e 16 lower limit range 0 16 bit integer 0 e 17 upper limit range 0 16 bit integer 0 e 18 lower limit range 1 16 bit integer 0 e 19 upper limit range 1 16 bit integer 0 e 20 lower limit range 2 16 bit integer 0 e 21 upper limit range 2 16 bit integer 0 e 22 lower limit range 3 16 bit integer 0 e 23 upper limit range 3 16 bit integer Publication 1746 UM001A US P 5 2 Channel Configuration Data and Status Output Image Channel Configuration Procedure Publication 1746 UM001A US P After installation each channel must be configured to establish the way the channel operates You configure the channel by entering bit values into the configuration word using your programming device A bit by bit examination of the configuration word is provided in the chart on page 5 3 Programming is discussed in Chapter 7 Addressing is explained in Chapter 4 The configuration word default setting is all zeros The channel configuration word consists of bit fields the settings of which determine how the channel operates See the chart on the foll
91. ortant differences between solid state Application Considerations for Solid State Controls SGI 1 1 programmable controller products and hard wired electromechanical devices An article on wire sizes and types for grounding electrical National Electrical Code Published by the equipment National Fire Protection Association of Boston MA A complete listing of current Allen Bradley documentation Allen Bradley Publication Index SD499 including ordering instructions Also indicates whether the documents are available on CD ROM or in multi languages glossary of industrial automation terms and abbreviations Allen Bradley Industrial Automation Glossary AG 7 1 Publicati on 1746 UM001A US P Preface 4 Common Techniques Used in this Manual Allen Bradley Support Publication 1746 UM001A US P The following conventions are used throughout this manual e Bulleted lists such as this one provide information not procedural steps e Numbered lists provide sequential steps or hierarchical information e Text in this font indicates words or phrases you should type e Key names appear in bold capital letters within brackets for example ENTER Allen Bradley offers support services worldwide with over 75 Sales Support Offices 512 authorized Distributors and 260 authorized Systems Integrators located throughout the United States alone plus Allen Bradley representatives in every major country i
92. oups A D Group Groups Group 1 Channel 0 Filter selection for all the channels in group 1 is done in the Channel 1 configuration word for channel 0 Even if channel 0 is disabled the Channel 2 filter setting needs to be selected in channel 0 for the rest of the Channel 3 channels in group 1 Setting the filter in channels 1 3 will not select a filter rather the default filter is selected Group 2 Channel 4 Filter selection for all the channels in group 2 is done in the Channel 5 configuration word for channel 4 Even if channel 4 is disabled the Channel 6 filter setting needs to be selected in channel 4 for the rest of the Channel 7 channels in group 2 Setting the filter in channels 5 7 will not select a filter rather the default filter is selected Group 3 Channel 8 Filter selection for all the channels in Group 3 is done in the Channel 9 configuration word for channel 8 Even if channel 8 is disabled the Channel 10 filter setting needs to be selected in channel 8 for the rest of the Channel 11 channels in group 3 Setting the filter in channels 9 11 will not select a filter rather the default filter is selected Group 4 Channel 12 Filter selection for all the channels in Group 4 is done in the Channel 13 configuration word for channel 12 Even if channel 12 is disabled Channel 14 the filter setting needs to be selected in channel 12 for the rest of Channel 15 the channels in group 4 S
93. owing page and the descriptions that follow for configuration information Appendix B contains a configuration worksheet After determining the configuration for each channel follow the steps outlined in Chapter 2 Quick Start or in Chapter 7 Application Examples to enter this configuration data into your ladder program and copy it to the 1746 NI16 module Define Class 1 Data or Status Configuration Class 1 Handshaking Reserved Input Type Data Format Calibration Channel needs to be disabled to perform calibration Filter Frequency Filter frequencies are set in ch O 4 8 and 12 for that channel and the following 3 channels in that group Filter groupings are 0 to 3 4 to 7 8 to 11 and 12 to 15 Channel Enable Channel Configuration Word To Select Read Data for Channel 0 to 7 15 14 13 12 10 Channel Configuration Data and Status al i 3 Read Data for Channel 8 to 15 oj oj mi Read Status for Channel 0 to 7 Read Status for Channel 8 to 15 To Reset Status Bit 6 Transmit Channel Configuration Not Used 10 Vdc or 20 ma 1 to 5 Vdc or 4 to 20 ma oj 0 to 5 Vdc or 0 to 1 ma o 0 to 10 Vdc or 0 to 20 ma Engineering Units Scaled for PID Proportional Counts 1746 NI4 Data Format oO oO OG User Limit Range 0 Class 3 Only User Limit Range 1 Class 3 Only User Limit Range 2
94. p 20 mA 21 mA to 21 mA 21000 to 21000 1 0 pA step 0Oto1mA 0 05 mA to 1 05 mA 50 to 1050 1 0 pA step Publication 1746 UM001A US P 5 10 Channel Configuration Data and Status Channel Data Word Values for Scaled Data Input Type Signal Range Scaled for PID Proportional Counts default NI4 Data Format 10V de 10 00V to 10 00V 0 to 16383 32768 to 32767 32768 to 32767 0 to 5V de 0 0V to 5 00V 0 to 16383 32768 to 32767 0 to 16384 1 to 5V de 1 00V to 5 00V 0 to 16383 32768 to 32767 3277 to 16384 0 to 10V de 0 0V to 10 00 V 0 to 16383 32768 to 32767 0 to 32767 0 to 20 mA 0 0 mA to 20 0 mA 0 to 16383 32768 to 32767 0 to 16384 Ato 20 mA 4 0 mA to 20 0 mA 0 to 16383 32768 to 32767 3277 to 16384 20 mA 20 0 mA to 20 0 mA 0 to 16383 32768 to 32767 16384 to 16384 0 to 1 mA 0 0 mA to 1 00 mA 0 to 16383 32768 to 32767 0 to 100011 1 This data format is not supported by the 1746 NI4 module but is available for the 1746 NI8 and 1746 N116 modules Scaling the Channel Data Word Publication 1746 UM001A US P This section provides descriptions of how the data types are expressed in the channel data word and examples of how to mathematically convert the data Data Type Descriptions The engineering units are 1 mV step for voltage input types and 1 0 pA step for current input types The scaled for PID value is a 14 bit unsigned integer with 0 representing
95. personal injury or property damage by e sending an erroneous signal to your system s field devices causing unintended machine motion e causing an explosion in a hazardous environment Electrical arcing causes excessive wear to contacts on both the module and its mating connector Worn contacts may create electrical resistance To remove the terminal block 1 Loosen the two terminal block release screws 2 Grasp the terminal block at the top and bottom and pull outward and down Terminal Block Release Screws ACEBCEEEEE IVAR Publication 1746 UM001A US P 3 8 Installation and Wiring Publication 1746 UM001A US P Module Installation Procedure 1 Read the Module Location in Chassis section beginning on page 3 3 2 Align the circuit board of the analog input module with the card guides located at the top and bottom of the chassis 3 Slide the module into the chassis until both top and bottom retaining clips are secured Apply firm even pressure on the module to attach it to its backplane connector Never force the module into the slot 4 Cover all unused slots with the Card Slot Filler catalog number 1746 N2 Top and Bottom Module Release s P Guide Module Removal Procedure 1 Press the releases at the top and bottom of the module and slide the module out of the chassis slot 2 Cover all unused slots with the Card Slot Filler c
96. r des composants sans s tre assur que l alimentation est coup e e Ce produit doit tre install dans une armoire Electrostatic discharge can damage semiconductor devices inside this module if you touch backplane connector pins Guard against electrostatic damage by observing the following precautions ATTENTION Electrostatic discharge can degrade performance or cause permanent damage Handle the module as stated below e Wear an approved wrist strap grounding device when handling the module e Touch a grounded object to rid yourself of electrostatic charge before handling the module e Handle the module from the front away from the backplane connector Do not touch backplane connector pins e Keep the module in its static shield bag when not in use or during shipment 1746 N116 Power Requirements Module Location in Chassis Installation and Wiring 3 3 The 1746 NI16 module receives its power through the SLC 5007 chassis backplane from the fixed or modular 5V dc 24V de chassis power supply The 5V de backplane supply powers the SLC circuitry and the 24V dc backplane supply powers the module analog circuitry The maximum current drawn by the module is shown in the table below 24V de Amps 5V de Amps When you are using a modular system configuration add the values shown in the table above to the requirements of all other modules in the SLC chassis to prevent overloading the chassis
97. rformed to see that the channel has been properly configured In addition the channel is tested on every scan for configuration errors out of range errors and for the 4 to 20 mA input type open circuit conditions A failure of any channel diagnostic test causes the faulted channel status LED to blink All channel faults are indicated in bits 15 through 13 of the channel s status word Channel faults are self clearing When the fault conditions are corrected the channel status LED stops blinking and resume steady illumination ATTENTION If you clear 0 a channel enable bit 15 all channel status information is reset Invalid Channel Configuration Whenever a channel s configuration word is improperly defined the channel status LED blinks and the channel status word indicated the type of configuration error in bits 15 through 13 See Error Codes on page 6 5 Configuration errors occur when the data format bits 8 through 6 in the channel configuration word are invalid Out Of Range Detection Whenever the data received at the channel data word is out of the defined operating range an over range or under range error is indicated in the channel status word See Error Codes on page 6 5 LED Indicators Module Diagnostics and Troubleshooting 6 3 Open Circuit Detection An open circuit test is performed on all enabled channels configured for 4 to 20 mA input and all enabled channels with voltage configurations
98. rocessor slot 0 in either an SLC 500 modular system or an SLC 500 fixed system expansion chassis 1746 A2 The module contains a removable terminal block providing connection for 16 analog input channels which are specifically designed to interface with analog current and voltage input signals The channels can only be wired as single ended inputs There are no output channels on the module The module is configured via the user program The following graphic displays the main hardware features LEDs Green ES Label 2 1 o Module Status LEO 25138 Green al ho Removable Terminal Block Cable Tie Slots oO 17 Publication 1746 UM001A US P Self locking Tabs ed System Overview Overview 1 3 Hardware Feature Function Channel Status LED Displays channel operating and fault status Indicators Module Status LED Displays module operating and fault status Side Label Nameplate Provides module information Removable Terminal Provides physical connection to input Block devices Door Label Permits easy terminal identification Cable Tie Slots Secures and routes wiring from the module Self Locking Tabs Secures module in the chassis slot General Diagnostic Feature
99. ry map 4 3 4 4 module ID code 2 4 how to enter 2 4 4 2 module operation 1 4 module scan time definition G 2 module status LED 2 8 module update time calculating 4 6 definition G 2 multiplexer definition G 2 multiplexing 1 4 negative decimal values C 2 NI4 data format channel data word values 5 10 input ranges 5 11 resolution 5 11 scaling example 5 15 selecting in configuration word 5 6 normal mode rejection Publication 1746 UM001A US P 3 4 Index 0 open circuit 6 3 defining conditional state of channel data 5 5 error 6 3 6 5 operation module 1 4 system 1 3 out of range detected error 6 2 output image 2 5 4 5 definition G 3 output response to slot disabling 4 11 over range detected error 6 5 P pinout diagram 3 9 Positive Decimal Values C 1 power up sequence 1 3 programming configuration settings 2 6 proportional count data type description 5 10 proportional counts scaling example 5 14 R remote configuration definition G 3 removable terminal block 1 3 resolution definition G 3 S scaled for PID description 5 10 scaling example 5 14 scaling definition G 3 scaling input data See input data scaling G 2 scan time G 2 self locking tabs 1 3 shield connections 3 9 3 12 software 2 4 4 1 specifications A 1 start up instructions 2 1 Publication 1746 UMOO1A US P status bit channel enable 1 3 fault condition 1 4 status LED See channel status LED or module status LED 1 4 statu
100. s The 1746 NI16 module contains diagnostic features to help identify the source of problems that may occur during power up or during normal channel operation These power up and channel diagnostics are explained in Chapter 6 Module Diagnostics and Troubleshooting The module communicates to the SLC 500 processor through the parallel backplane interface and receives power from the SLC 500 power supply through the backplane The 5V de backplane supply powers the SLC circuitry and the 24V de backplane supply powers the module analog circuitry No external power supply is required You may install as many 1746 NI16 analog modules in a 1746 chassis as the chassis power supply can support The NI16I can only receive current inputs The NI16V can only receive voltage inputs System Operation At power up the module performs a check of its internal circuits memory and basic functions During this time the module status LED remains off If no faults are found during the power up diagnostics the module status LED is turned ON After power up checks are complete the module waits for valid channel configuration data from the SLC ladder logic program channel status LEDs off After configuration data is written to one or more channel configuration words and the channel enable status bits are set the channel status LEDs are turned ON and the module continuously converts the analog input to a value within the range selected in the configuration
101. s updated Publication 1746 UM001A US P 4 10 Preliminary Operating Considerations Publication 1746 UM001A US P Aliasing Frequency Aliasing is a natural characteristic of discrete time sampling of analog signals This can result in erroneous data in the data channel word Aliasing is usually not a problem because the duration of the high frequency signal is much shorter than the program scan time Aliasing begins at a lower frequency when more channels are enabled Anti aliasing filters are available but you should check your transducer for malfunctions first as the filters are fairly expensive Aliasing occurs when unwanted signals at a frequency greater than the effective sampling rate are present The effective sampling rate is determined by the number of enabled channels n The first aliasing frequency occurs at f 1 Update Time in seconds Subsequent aliasing frequencies occur at integer multiples of f Noise Rejection Rejection of common mode noise is inherent in the hardware design of the module Common mode rejection is better than 100 dB for common mode 50 Hz and 60 Hz AC signals The module performs well in the presence of common mode noise as long as the signals applied to the user terminals do not exceed the common mode voltage rating 10 25 Volts of the module Improper earth chassis ground connections may be a source of common mode noise Rejection of normal mode noise is implemented in the firmw
102. s are set in chO 4 8 and 12 for that channel and the following 3 channels in that group Filter groupings are 0 to 3 4 to 7 8 to 11 and 12 to 15 Error Conditions To Select Data from Channel 0 to 7 15 14 13 1019 8 7 6 5 4 3 2 Data from Channel 8 to 15 Status for Channel 0 to 7 Status for Channel 8 to 15 10 Vdc or 20 mA o ol O gt O 1 to 5 Vdc or 4 to 20 mA 0 to 5 Vdc or 0 to 1 mA 0 to 10 Vdc or 0 to 20 mA Engineering Units gt O O Scaled for PID Proportional Counts 1746 N14 Data Format Ready to receive channel configuration O O Processed channel configuration Normal RUN Mode Exit Calibration Mode Calibration Mode Entered Zero Value Calibrated ull Scale Calibrated Hz O O O 0 0 Hz 0 Hz 0 Hz 0 Hz F 6 1 2 40 Hz 6 8 1 00 Hz 250 Hz Channel Disabled gt O O O Faulty Calibration Invalid Calibration Reference Configuration Error Open Circuit Detected Under Range Detected Over Range Detected No Error NOTE Publication 1746 UM001A US P O gt O OF O CO Bits 1 and 0 indicate origin in Class 1 mode Bits 15 thro
103. s user manual 6 Determine the operating parameters Reference Determine the operating parameters for channel 0 This example shows the channel 0 configuration word The Chapter 4 module is in slot 1 The default configuration word is all zeros Preliminary Opening 5112 Jar 10 ole 7 6514 13 2 0 BitNumber ii Chapter 5 t loltlollololollo olollo ollollol o o Channel0 Channel A Configuration i e Class 1 Data or Status Configuration Data and Status e Class 1 Handshaking iki ppendix astas 1746 NI16 e Input Type 10 V de Configuration e Data Format Engineering Units Worksheet Calibration Filter Frequency 20 Hz Channel Enable Enabled Publication 1746 UM001A US P Quick Start for Experienced Users 2 5 1746 N116 Module Output Image Channel Configuration lower scale limit range 0 16 bit integer upper scale limit range 0 16 bit integer lower scale limit range 1 16 bit integer A a ane gees co Co NI o O1 A dr upper scale limit range 1 16 bit integer lower scale limit range 2 16 bit integer 1 21 upper scale limit range 2 16 bit integer 1 22 lower scale limit range 3 16 bit integer 1 23 upper scale limit range 3 16 bit in
104. s well as reflecting back the same configuration information contained in the configuration words for each channel These status words for 16 analog channels are stored in data table words N7 66 through N7 81 and are bit mapped Therefore to understand them they must be viewed in the Binary Radix Refer to Chapter 5 for an explanation of each bit in these words File 3 configures analog channels 0 to 7 then as each of these channel configurations complete it configures analog channels 8 to 15 When all 16 channels are configured subroutine File 3 is no longer scanned Rungs 2 2 and 2 3 are then alternately enabled to first read the analog data from channels 0 to 7 then from channels 8 to 15 The program continues to alternate between reading analog data from the first 8 channels then the last 8 channels and then storing the data in 16 consecutive words beginning with N7 50 The 16 analog words from N7 50 through N7 65 are in decimal and for this 0 to 10V de example are represented by the decimal range 0 to 32767 The reason for the fairly complex ladder logic to configure read status and then read analog data from the NI16 module in Class 1 mode is due to the need to multiplex 16 channels with 8 I O words Application Examples 7 3 Ladder Files File 2 Subroutine file 3 is used to configure all 16 ch
105. s word addressing 4 5 definition G 3 module input image 5 16 See also input image 4 5 step response time definition G 3 system operation 1 3 T terminal pinout diagram 3 9 terminal wiring wiring inputs 3 13 tools required for installation 2 1 transducer definition G 3 source impedance 3 13 wiring 3 13 troubleshooting contacting Allen Bradley P 4 LED examination 6 3 two s complement binary numbers C 1 D 1 U under range detected error 6 5 update time related to cut off frequency 4 9 update time See channel update time G 1 update time See module update time G 2 user defined scaling description 5 11 scaling example 5 15 W wiring 3 1 routing considerations 3 6 terminal wiring shield connections 3 12 worksheet B 1 www rockwellautomation 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 E Cyberport 3 100 Cyberport Road Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Publication 1746 UM001A US P December 1999 1999 Rockwell International Corporation Printed in the U S A
106. se sonne rt 1 4 Chapter 2 Required Tools and Equipment 2 1 POCHES SR AR A AA 2 2 Chapter 3 Hazardous Location Considerations 3 1 Environnements dangereux 3 2 Electrostatic Damas rations gee EN OW ra ose et 3 2 1746 NI16 Power Requirements 3 3 Module Location IGIASSiS pe A 3 3 Modular Chassis Considerations 3 3 Fixed Expansion Chassis Considerations 3 3 General Considerations 3 6 Compliance to European Union Directives 3 6 EMC Directive Lo eau o a 3 6 Module Installation and Removal 3 7 Terminal Block Removal se ea ns ame oy hae et 3 7 Module installation Procedure ds do op Ri ee es 3 8 Module Removal Procedures ss 54 5 titeres 3 8 Terminal Wiring ete tie i pats kee thy ea 3 9 Terminal Block Pre wired Cables and Terminal Blocks 3 9 Wiring Single Ended Inputs Vis rss 3 10 Wiring Guidelines s rustica rea 3 12 Publication 1746 UM001A US P Table of Contents ii Preliminary Operating Considerations Channel Configuration Data and Status Publication 1746 UM001A US P Input DEVICES Ad da da 3 13 Transducer Source Impedance i yaad dente tas 3 13 Wiring Input Devices to the 1746 NI16 3 13 Chapter 4 Module ID Codes tarta dada S tds ias tn or As 4 1 Class 1 and Class 3 nee do oo eue en pe es 4 2 Module Addressing o oo ser g
107. t N7 40 0 lt N7 57 NEST N7 57 MOV 0013 J E J E J E Move 13 14 15 Source 1 6 11 0 lt Dest N7 41 0 lt N7 58 N7 58 N7 58 MOV 0014 J E J E J E Move 13 14 15 Source 1 6 12 0 lt Dest N7 42 0 lt N7 59 N7 59 N7 59 MOV 0015 J E J E J E Move 13 14 15 Source 1 6 13 0 lt Dest N7 43 0 lt N7 60 N7 60 N7 60 MOV 0016 J E J E J E Move 13 14 15 Source 1 6 14 0 lt Dest N7 44 0 lt N7 61 N7 61 N7 61 MOV 0017 J E J E J E Move 13 14 15 Source 1 6 15 0 lt Dest N7 45 0 lt 0018 CEND gt Publication 1746 UM001A US P Application Examples 7 21 Data File N7 The table below is Data Table File N7 Words N7 0 through N7 15 are the configuration words for channels O through 15 of the NI16 module in the decimal radix Refer to Chapter 5 Channel Configuration Data and Status for an explanation of each bit in these words Since this is bit mapped data it must be viewed in the binary radix For this example each analog channel has been configured for 10Vdc input type a data format of 1746 NI4 and a filter frequency of 60Hz offset 0 1 2 3 4 5 6 1 8 9 N7 0 16192 161992 16192 16192 16192 16192 16192 16192 16192 16192 N7 10 16192 16192 16192 16192 16192 16192 Publication 1746 UM001A US P 1 22 Application Examples Publication 1746 UM001A US P Electrical Specifications Specifications Appendix A This appendix lists the specifications for the 1
108. teger Class 1 Class 3 0 1 0 channel 0 configuration word bit mapped field 0 1 1 channel 1 configuration word bit mapped field 0 1 2 channel 2 configuration word bit mapped field 0 1 3 channel 3 configuration word bit mapped field 0 1 4 channel 4 configuration word bit mapped field 0 1 5 channel 5 configuration word bit mapped field 0 1 6 channel 6 configuration word bit mapped field 0 1 7 channel 7 configuration word bit mapped field 0 1 8 channel 8 configuration word bit mapped field 0 1 9 channel 9 configuration word bit mapped field 0 1 1 channel 10 configuration word bit mapped field 0 1 channel 11 configuration word bit mapped field 0 1 channel 12 configuration word bit mapped field 0 1 channel 13 configuration word bit mapped field 0 1 channel 14 configuration word bit mapped field 0 1 channel 15 configuration word bit mapped field 0 1 0 1 0 1 0 1 0 1 0 0 0 Publication 1746 UM001A US P 2 6 Quick Start for Experienced Users 1 Program the configuration Reference Do the programming necessary to establish the new configuration word setting in the previous step Chapter 7 1 Create integer file N10 Integer file N10 should contain one element for each channel used Application Examples For this example we only need one N10 0 2 Enter the configuration parameters from step 6 for channel 0 into integer N10 0 3 Program an instruction in your ladder
109. the cable to the voltage or current transmitter terminals Repeat steps 1 through 7 for each channel on the module Module ID Code Chapter 4 Preliminary Operating Considerations This chapter explains how the analog input module and the SLC 500 processor communicate through the module s input and output image It lists the preliminary setup and operation required before the module can function in a 1746 I O system Topics discussed include how to e enter the module ID code e select the Class 1 or Class 3 interface e address your 1746 NI16 module e select the proper input filter for each channel e calculate the module update time interpret the module response to slot disabling The module identification code is a unique number encoded for each 1746 I O module The code defines for the processor the type of I O or specialty module residing in a specific slot in the 1746 chassis Catalog Number ID Code 1746 N1161 Class 1 interface 3504 Class 3 interface 10403 1746 NI16V Class 1 interface 3505 Class 3 interface 10406 Publication 1746 UM001A US P 4 2 Preliminary Operating Considerations Class 1 and Class 3 Interface Publication 1746 UM001A US P NOTE Not all programming software supports configuration for Class 3 operation e Advanced Programming Software APS supports Class 3 configuration After entering the ID code NI16I 10403 NI16V 10406 enter 32 input words and 32 output wor
110. tic damage e determine the chassis power requirement for the module e choose a location for the module in the SLC chassis e install the module e wire the module s terminal block e wire input devices Hazardous Location This equipment is suitable for use in Class I Division 2 Groups A B C D or non hazardous locations only The following ATTENTION Considerations ee ne p statement applies to use in hazardous locations ATTENTION EXPLOSION HAZARD e Substitution of components may impair suitability for Class I Division 2 e Do not replace components or disconnect equipment unless power has been switched off Do not connect or disconnect components unless power has been switched off e This product must be installed in an enclosure Publication 1746 UM001A US P 3 2 Installation and Wiring Environnements dangereux Cet quipement est con u pour tre utilis dans des environnements Electrostatic Damage Publication 1746 UM001A US P de Classe 1 Division 2 Groupes A B C D ou non dangereux La mise en garde suivante s applique une utilisation dans des environnements dangereux MISE EN GARDE DANGER D EXPLOSION e La substitution de composants peut rendre cet quipement impropre une utilisation en environnement de Classe 1 Division 2 e Ne pas remplacer de composants ou d connecter l quipement sans s tre assur que l alimentation est coup e e Ne pas connecter ou d connecte
111. ugh 2 contain real data for each channel If the module is in Class 3 mode all 16 bits are real data depending on the data type Channel Configuration Data and Status 5 19 Class 3 Status Word Define To Select 15114113 12 1111019 8 7 6 15 4 3 2 11 0 Class 1 Data from Channel 0 to 7 0 0 ree tise Data from Channel 8 to 15 0 1 Status for Channel 0 to 7 1 10 Status for Channel 8 to 15 aya Input Type 10 Vdc or 20 mA 0 0 1 to 5 Vdc or 4 to 20 mA 0 1 0 to 5 Vdc or 0 to 1 mA 1 10 0 to 10 Vdc or 0 to 20 mA 111 Data Format Engineering Units o 0 0 Scaled for PID 0 0 Proportional Counts 0 1 0 1746 NI4 Data Format 0 User Limit Range 0 1 10 10 User Limit Range 1 1 10 User Limit Range 2 1 11 10 User Limit Range 3 1 11 Calibrate Normal RUN Mode Exit Calibration Mode 0 0 10 Channel Status Calibration Mode Entered 0 lo 1 Zero Value Calibrated 0 11 1 Full Scale Calibrated 1 10 11 Filter Frequency 6 Hz o 10 0 Filter frequencies are 10 Hz 0 To un De cf following 3 channels in 40 Hz 0 1 that group 60 Hz 1 10 0 Filter groupings are 80 Hz 7 10 0 to 3 4 to 7 8 to 11 and 12 to 15 100 Hz 1 j1 J2 250 Hz 1 11 Error Conditions Channel Disabled 0 0 0 Faulty Calibration 0 0 Invalid Calibration Reference 0 11 10 Configuration Error 0 1 Open Circuit Detected 1 10 10 Under Range Detected 1 10 Ov
112. us or data is shown Publication 1746 UM001A US P 4 4 Preliminary Operating Considerations SLC 5 0X Data Files Input Image Publication 1746 UM001A US P Output Scan Input Scan Class 3 Memory Map hannel 0 Configuration Word Channel 1 Configuration Word hannel 2 Configuration Word Channel 3 Configuration Word iguration Word iguration Word hannel 6 Configuration Word hannel 7 Configuration Word Channel 8 Configuration Word Channel 10 Configuration Word Channel 11 Configuration Word C C C C Channel 12 Configuration Word Channel 13 Configuration Word Channel 14 Configuration Word Channel 15 Configuration Word Word 16 is Lower Limit Range 0 Analog Input Word 17 E Upper Limi Range 0 Module Image Word 18 is Lower Limit Range Table Word 19 is Upper Limit Range Word 20 is Lower Limit Range 2 Word 21 is Upper Limit Range 2 Output Image Output Image Word 22 is Lower Limit Range 3 32 Words Word 23 is Upper Limit Range 3 o Da Data Word Data Word 0 Data Word 1 2 hannel 3 Data Word 4 5 6 Input Image hanne 32 Words Input Image hanne nanne TIET EF Data Word Data Word a Word a Word a Word a Word 0 Data Word hannel 11 Data Word hannel 12 Data Word 3 Data Word Data Word Data Word nanne ojlo nanne nanne ojlo ojo oa h
113. ut word configures a single channel Example If you want to configure channel 2 on the analog module located in slot 4 in the chassis your address would be O 4 2 File Type gt 0 4 y lt Word PEN Slot Element Delimiter Word Delimiter Chapter 5 Channel Configuration Data and Status gives you detailed bit information about the data content of the configuration word Also see Chapter 7 for a detailed explanation and application examples Input Image Data Words and Status Words The input image defined as the input word from the module to the processor represents data words and status words Input words hold the input data that represent the value of analog inputs for channels 0 15 This data word is valid only when the channel is enabled and there are no channel errors Class 1 Input Words Data The data words for Class 1 are input words 0 through 7 Setting bits 1 and 0 in the output configuration word to 00 or 01 returns the data for channels 0 through 7 or 8 through 15 respectively Class 1 data mode only returns a 14 bit integer 3 LSB of the Class 3 resolution The remaining 2 bits bits 1 and 0 indicate whether the input word is data or status for channels 0 through 7 or 8 through 15 Class 3 Input Words Data The data words for Class 3 are the input words 0 through 15 Data for all 16 channels can be viewed simultaneously and all data words are 16 bit integer values Input words also contain t
114. words of input image and 32 words of output image making this mode of operation more desirable The status for all 16 channels can also be monitored constantly while reading data from all 16 channels The following ladder logic program configures all 16 channels of the 1746 NI16 module in Class 1 mode It then instructs the analog input module to begin reading data Class 1 mode should only be used when the controller is a SLC 500 fixed SLC 5 01 or when the module is located in a remote I O chassis with a 1747 ASB The significance of Class 1 mode is that only 8 input words and 8 output words of image are allowed for exchanging data between the SLC controller and the NI16 module This means that configuration data status and actual analog data for the 16 analog channels must be multiplexed using the 8 I O image words Publication 1746 UM001A US P 7 2 Application Examples Publication 1746 UM001A US P In contrast Class 3 mode supports up to 32 I O image words Class 3 mode can be utilized with SLC 5 02 5 03 5 04 5 05 and also in a remote ControlNet chassis 1747 ACN ACNR No multiplexing of data is required making configuration and reading of status and analog data more straightforward The following ladder program enters subroutine File 3 at power up File 3 contains logic to configure all 16 analog channels as well as receive and store the 16 status words for each channel The status words contain success failure error codes a

1746-UM001A-US-P, SLC 500 Analog Input Modules User Manual

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