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Rockwell Automation AB Quality Allen-Bradley SLC 500 User Manual

Fast analog i/o module
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SLC 500 Fast Analog
I/O Module
Catalog Numbers 1746-FIO4I and
1746-FIO4V
User Manual

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Summary of Contents for Rockwell Automation AB Quality Allen-Bradley SLC 500

  • Page 1 SLC 500 Fast Analog I/O Module Catalog Numbers 1746-FIO4I and 1746-FIO4V User Manual...
  • Page 2 BURN HAZARD motor, to alert people that surfaces may reach dangerous temperatures. Rockwell Automation, Allen-Bradley, TechConnect, RSLogix500, SLC, SLC 500, and SLC 5/02 are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.

  • Page 3: Table Of Contents

    Table of Contents Preface About This Publication ......5 Who Should Use This Manual ......5 Additional Resources.
  • Page 4 Table of Contents Chapter 6 Calibrate the Module Calibration Tradeoffs ......61 Calibrate an Analog Input Channel .

  • Page 5: Preface

    Preface About This Publication Read this preface to familiarize yourself with the rest of the manual. This preface covers the following topics: • Who should use this manual • The purpose of this manual • Terms and abbreviations • Conventions used in this manual •...

  • Page 6: Additional Resources

    Association of Boston, MA equipment You can view or download publications at http://literature.rockwellautomation.com. To order paper copies of technical documentation, contact your local Rockwell Automation distributor or sales representative. Conventions The following conventions are used throughout this manual: • Bulleted lists such as this one provide information, not procedural steps.

  • Page 7: Required Tools And Equipment

    Chapter Quick Start This chapter presents an overview of installation and start-up procedures to help you get the module working quickly. It refers to full procedures in corresponding chapters of this manual or in other SLC documentation that may be helpful if you are unfamiliar with programming techniques or system installation.

  • Page 8: Procedures

    Quick Start Procedures Follow these steps to get your module running in your SLC system. 1. Plan the inclusion of analog I/O modules in your SLC system. If a new system, specify the type of processor, number of I/O racks, I/O modules, and power supply. If adding to an existing system: •...
  • Page 9 Quick Start For Differential Inputs Module Analog IN 0 + Sensor – IN 0 – Earth ANL COM Ground IN 1 + Important: Jumper IN 1 – unused inputs. ANL COM Not Used Load OUT 0 ANL COM Earth Not Used Ground OUT 1 Important: Do not...
  • Page 10 Quick Start The lowest two bits have no effect on the output value. Refer to Processor and Module Considerations on page 29 for more information. SLC 500 Processor Data Files Input Image Output Image (2 words) (2 words) Address (variable input data) 0 0 0 0 I:1.0 Channel 0 Input Word...

  • Page 11: Determine The Module's Power Requirements

    Chapter Install and Wire the Modules This chapter describes procedures to install fast analog I/O modules in an SLC 500 system. The procedures include the following tasks. • determine the module’s power requirements • determine compatibility with other I/O modules •...

  • Page 12: Determine Compatibility With Other I/O Modules

    Install and Wire the Modules Determine Compatibility Use the I/O Compatibility chart when using the expansion rack of a fixed controller (1747-L20, 1747-L30, and 1747-L40). The chart with Other I/O Modules determines compatibility of other I/O modules with fast analog modules.

  • Page 13: Configure Input Channels

    Install and Wire the Modules I/O Compatibility 1746-FIO4I 1746-FIO4V 1746 Module • OW8, OW16 • BASIC BASn • The • symbol indicates an allowable combination of 1746 I/O modules. The ∇ symbol indicates an auxiliary 24V dc power supply may be needed. Configure Input Channels Your fast analog I/O modules have a two-switch assembly to configure the input channels for either current or voltage operation.

  • Page 14: Select The I/O Rack Slot

    Install and Wire the Modules Select the I/O Rack Slot Two factors determine where you should locate the module in the I/O rack: ambient temperature and electrical noise. Consider the following conditions when selecting an I/O rack slot for the module. Position the module: •...
  • Page 15 Install and Wire the Modules 4. To remove the module, press the retaining clips at the top and bottom of the module and slide the module out. Installing the Module Card Guide Self-locking tabs secure the module in the I/O rack. Publication 1746-UM009B-EN-P - September 2007...

  • Page 16: Considerations When Wiring

    Install and Wire the Modules Considerations When This section provides guidelines on wiring the system, grounding the cables, determining cable length. Wiring Before wiring the module, disconnect SLC system power, I/O ATTENTION rack power, and module power. System Wiring Guidelines Use the following guidelines in planning the system wiring to the module.
  • Page 17 Install and Wire the Modules Ground the Cable Signal cable such as Belden cable #8761 (or equivalent) has two signal wires (black and clear), one drain wire, and a foil shield. The drain wire and foil shield must be grounded at only one end of the cable, not at both ends.

  • Page 18: Minimize Electrical Noise Interference

    Install and Wire the Modules Minimize Electrical Noise Because high-speed analog signals are particularly vulnerable to electrical noise, take precautions when routing your signal cables. To Interference help reduce the effects of electrical noise on analog signals, we recommend that you do the following: •...
  • Page 19 Install and Wire the Modules 3. Apply shrink wrap where wires leave the casing with the hot-air blower. 4. Cut off the drain wire and foil shield at the other end of the cable. 5. Apply shrink wrap to the junction where wires leave the casing. 6.

  • Page 20: Minimize Ground Loops

    Install and Wire the Modules Single-ended inputs are less immune to noise than are IMPORTANT differential inputs. Wiring Schematic for Single-ended Current-loop Analog Input Connections Important: The module does not provide loop power for analog inputs. Use a power supply that matches the transmitter specifications. 2-wire Transmitter Transmitter Module...

  • Page 21: Label The Terminal Block

    Install and Wire the Modules Label the Terminal Block The terminal block has a write-on label. Use it to ensure that you install the correct terminal block on the corresponding module. Terminal Block SLOT ____ RACK ____ Note: The black dot on the label MODULE _____ indicates the position of terminal 0.
  • Page 22 Install and Wire the Modules Publication 1746-UM009B-EN-P - September 2007...

  • Page 23: Click And Drag Configuration

    Chapter Access Files to Configure I/O There are two ways to configure the SLC Chassis for a 1746-FIO4I/V module. You can either click and drag items from the list or you can use the Read IO Config method. Click and Drag Follow these steps to configure the SLC chassis by clicking and dragging modules.

  • Page 24: Read Io Config Method

    Access Files to Configure I/O The I/O Configuration is now complete. Each slot shows the corresponding module that is located on the rack. In this example the 1746-FIO4V is in slot 1. Read IO Config Method Follow these steps to configure the SLC chassis by using the Read IO configuration method.
  • Page 25 Access Files to Configure I/O 2. Place the 1746-FIO4I/V module into the correct slot by clicking Read IO Config. The following screen appears. 3. Select either the driver and processor node number or use the Who Active button to browse for the device. •...
  • Page 26 Access Files to Configure I/O The Who Active screen lets you browse for the SLC device. 4. Locate the SLC Chassis under the appropriate driver and click You are brought back to the Read IO Config screen. 5. Click Read IO Config and the rack is populated automatically. Publication 1746-UM009B-EN-P - September 2007...
  • Page 27 Access Files to Configure I/O The I/O Configuration is now complete. Each slot shows the corresponding module on the rack. In this example the 1746-FIO4V is in slot 1. Publication 1746-UM009B-EN-P - September 2007...
  • Page 28 Access Files to Configure I/O Publication 1746-UM009B-EN-P - September 2007...
  • Page 29 Chapter Processor and Module Considerations This chapter describes concepts that you need to understand to program the fast analog I/O module in an SLC 500 system. The following are processor considerations. • Update processor analog I/O data • Monitor analog I/O data •...

  • Page 30: Processor Considerations

    Processor and Module Considerations Processor Considerations Knowing how the processor works helps you program it more effectively. Processor Update of Analog I/O Data Analog input and output image words are updated by the processor once every processor scan when the processor scans data and program files in succession.
  • Page 31 Processor and Module Considerations Address I/O Image Words Each module input channel is addressed as a single word in the processor’s input image table and each module output channel is addressed as a single word in the processor’s output image table. The module uses a total of two input words and two output words.

  • Page 32: Module Considerations

    Processor and Module Considerations Module Considerations The module’s I/O channel converters affect resolution of I/O data and bit usage in I/O image words. We show you how to compute I/O signal levels. Input filtering and input A/D conversion affect input response time.
  • Page 33 Processor and Module Considerations Convert Analog Input Data The module converts analog input signals to 12-bit binary values for storage in the input image table. The decimal range, number of significant bits, and converter resolution depend on the input range that you use for the channel. Input Range Decimal Range Significant...
  • Page 34 Processor and Module Considerations For example, if the input image table value is 409 from a 4…20 EXAMPLE mA sensor. Full Scale Input Sensor Signal = x Input Image Value = 0.00977 x 409 = 4 mA Full Scale Count Convert Analog Output Data The module converts 16-bit binary values from the output image table to 14-bit analog output signals and left-justifies the bit code in the...
  • Page 35 Processor and Module Considerations If the module’s output range is 4…20 mA and you want to set EXAMPLE the output to 4 mA, compute the output image value as follows. 31,208 ~ – Output Image Value = x 4 mA 6242 20 mA The actual resolution for analog current outputs is 2.56348...
  • Page 36 Processor and Module Considerations Input Channel Filtering The module’s input filters are designed to attenuate less than 1% of the input signal in the 0…1000 Hz range. Percent of Signal Passed 99.9 99.8 99.7 99.6 99.5 99.4 99.3 99.2 99.1 1000 The –3dB point is approximately 7000 Hz.
  • Page 37 Processor and Module Considerations Time Delay for A/D Conversion The A/D converter uses 7.5 µs for data conversion, 248.5 µs for data settling, and 256 µs for data transfer to the backplane. New data is available in 512 µs cycles. Response Time of A/D Converter Data Data...
  • Page 38 Processor and Module Considerations Input Response to Slot Disable The module continues to update its inputs for transfer to the processor, but the processor: • does not read inputs from the module in a disabled slot. • retains the last-state input image table values. •...

  • Page 39: Retentive And Non-Retentive Programming

    • PID xontrol with analog I/O scaling We present programming examples for instructional purposes IMPORTANT only. Because of the many variables and requirements associated with any application, Rockwell Automation cannot assume responsibility or liability for actual use based on these examples. Retentive and Non-retentive The processor’s automatic response for scanning the I/O image table...
  • Page 40 Write Ladder Logic We give you the following examples for programming a different response. • Retentive analog output • Non-retentive analog output • Clear the output for changing mode or cycling power Retentive Analog Output This example loads a program constant into an analog output channel.

  • Page 41: Detect An Out-Of-Range Input

    Write Ladder Logic Clear the Output for Changing Mode or Cycling Power This example clears analog output channel 0 during the initialization scan (first processor scan). The first pass bit, S2:1/15, in the Status File is used to initialize the analog output when you apply power in the RUN mode or upon setting the processor to the RUN or TEST mode.

  • Page 42: Overview Of Scaling Inputs And Outputs

    Write Ladder Logic We present an alternative program for SLC 5/02 (and later) processors. It uses a single Limit Test instruction that checks low and high limits. Whenever the input value exceeds a limit, this program latches a bit that could trigger an alarm elsewhere in your ladder program. In this example, the input range is 0…10V dc (decimal range of 0…4095).
  • Page 43 Write Ladder Logic We illustrate input and output scaling, the source and type of data to be scaled, and the type and destination of the scaled data. Data Scaling Input Scaling Output Scaling Scaled Values Scaled Values in Engineering to Match Units for Data Module’s Raw Table (Δy)

  • Page 44: Scale An Analog Input And Detect An Out-Of-Range Condition

    Write Ladder Logic Scale an Analog Input and The following example shows input range checking and scaling the analog input to engineering units for a 1746-FIO4V analog input Detect an Out-of-range module. Condition We are making the following assumptions: • The 1746-FIO4V module is located in slot 3 of a modular system. •...
  • Page 45 Write Ladder Logic Calculate the Linear Relationship Use the following equations to express the linear relationship between the input value and the resulting scaled value. Scaled value = (input value x slope) + offset Slope = (scaled max – scaled min) / (input max – input min) (500 –...
  • Page 46 Write Ladder Logic Standard Math Example Below-range flag Rung 2:0 B3/0 Check for below range LESS THAN Source A I:3.1 Source B 1750 Above-range flag Rung 2:1 Check for above range B3/1 GREATER THAN Source A I:3.1 Source B 2750 Rung 2:2 Scale the analog input MULTIPLY...

  • Page 47: Scale An Analog Output

    Write Ladder Logic Scale an Analog Output This example shows the scaling of analog output values to engineering units for monitoring or controlling purposes. We are making these assumptions. • The FIO4I module is located in slot 2 of an SLC 500 system. •...
  • Page 48 Write Ladder Logic Ladder Logic The out-of-range limits are predetermined because any value less than 0% is 6242 and any value greater than 100% is 31,208. The ladder logic checks for out-of-range limits to verify that not less than 4 mA and not more than 20 mA is delivered to the analog output channel.

  • Page 49: Scale Offsets When >32,767 Or <32,768

    Write Ladder Logic Scale Offsets When Some applications may produce an offset greater than 32,767 or less than –32,768, the largest value that can be stored in a 16-bit integer or >32,767 or <32,768 processed by an SLC processor. If so, you may reduce the magnitude of the offset by shifting the linear relationship along the input value axis.
  • Page 50 Write Ladder Logic 2. Then we shift the linear relationship along the input value axis. 9.5 V = 3890 (scaled max) Scaled Value 0.5 V = 205 (scaled min) 100% Input Value (input min) (input max) 3. Now we compute the offset for the shifted linear relationship. Offset = scaled min –...
  • Page 51 Write Ladder Logic Ladder Logic The following ladder logic uses standard math. It unlatches the mathematical overflow bit S2:5/0 before the end of the scan to prevent a processor fault. The module is located in slot 2, and the output device is wired to channel 0. Scale Offset Rung 2:0 B3/0...

  • Page 52: Range-Check An Analog Input And Scale It For An Output

    Write Ladder Logic Range-check an Analog This example checks the range of an analog input and scales it for use as an output. An 1746-FIO4V module is placed in slot 1 of an SLC 500 Input and Scale It for an system.
  • Page 53 Write Ladder Logic Ladder Logic We present two examples. The first runs on any SLC 500 processor. The second uses the scaling instruction available on SLC 5/02 (and later) processors. In the first example, the analog input value is checked against the minimum and maximum input limits.
  • Page 54 Write Ladder Logic Example Program for Any SLC Processor Rung 2:0 B3/0 Set in-range bit Rung 2:1 Check for below range LESS THAN MOVE Source A I:1.0 Source B Source Dest N7:0 B3/0 Rung 2:2 Check for above range MOVE GREATER THAN Source A I:1.0...
  • Page 55 Write Ladder Logic Rate = slope x 10,000 Rate = (scale range / input range) x 10,000 Rate = 3276 / 1638 x 10,000 Rate = 2 x 10,000 Rate = 20,000 If the slope was greater than 3.2767, you could not use the SCL instruction because the rate would exceed 32,767, a value too large to handle.

  • Page 56: Pid Control With Analog I/O Scaling

    Write Ladder Logic PID Control with Analog I/O With the combination of PID and SCL (scale) instructions or PID and standard math instructions, you can write and display ladder logic in Scaling engineering units such as PSI or °C. Follow these steps to display ladder logic in engineering units. 1.
  • Page 57 Write Ladder Logic 3. Enter PID parameters in engineering units into the PID instruction. For example, if the 4…20 mA analog input range represents 0…300 PSI, enter 0 as the minimum (Smin) and 300 as the maximum (Smax). You can also enter setpoints and deadband in engineering units.
  • Page 58 Write Ladder Logic Example Program for SLC 5/02 (or later) Processors (scaled voltage input and output) Rung 2:0 IMMEDIATE INPUT w MASK Slot I:1. 0 Mask FFFF Length Rung 2:1 MULTIPLY Source A I:1.0 Source B Dest N7:0 Rung 2:2 Control Block N10:0 Process Variable...
  • Page 59 Write Ladder Logic Example Program for SLC 5/02 (or later) Processors (scaled current input and output) Rung 2:0 IMMEDIATE INPUT w MASK Slot I:1.0 Mask FFFF Length Rung 2:1 Scale the analog input with math instructions. MULTIPLY Source A I:1.0 Multiply by scaled range Source B 16383...
  • Page 60 Write Ladder Logic Brake Monitor Example Program for SLC 5/02 (or later) Processors Rung 2:2 The next 2 rungs ensure that the analog input value to be scaled remains within the limits of 409 and 2047. This prevents out-of-range conversion errors in the SCL and PID instructions. The latch bits can be used elsewhere in the program to identify the particular out-of-range error which occurred.

  • Page 61: Calibration Tradeoffs

    Chapter Calibrate the Module This chapter helps you calibrate the module’s analog input channels to increase the expected accuracy from ± 21 LSB of error to ± 6 LSB. The combination of calibration program and procedure is designed to reduce offset and gain errors by: •...

  • Page 62: Calibrate An Analog Input Channel

    Calibrate the Module Calibrate an Analog Input We provide an example calibration program and a calibration procedure to show you how to calibrate an analog input channel. Channel This example assumes an analog output of 4…20 mA from a transducer. The corresponding decimal code that the module would write into the processor’s input image table would be 409 at 4 mA and 2047 at 20 mA if the overall error of an input channel were zero.
  • Page 63 Calibrate the Module These addresses are used in the example program. (Each channel requires its own program and separate addresses.) Example Program Addresses Bit or Value Address Cal_Lo I:1.0/0 and N10:0/0 (You set these bits in step 3.) Cal_Hi I:1.0/1 and N10:0/1 (You set these bits in step 4.) Calibrate I:1.0/2 and N10:0/2 (You set these bits in step 5.) Convert Enable...
  • Page 64 Calibrate the Module Rung 2:0 Cal_Lo I:1.0 N10:0 MOVE [OSR] Source Analog_In 1000 Dest Lo_Value Rung 2:1 I:1.0 N10:0 Cal_Hi MOVE [OSR] Source Analog_In 1000 Dest Hi_Value 2055 Rung 2:2 I:1.0 N10:0 Calibrate SUBTRACT [OSR] Source A Hi_Value 2055 Source B Lo_Value Dest Span...
  • Page 65 Calibrate the Module MULTIPLY Source A Lo_Value Source B Slope_x10K 9897 Dest N10:5 32767 DOUBLE DIVIDE Source 10000 Dest N10:6 SUBTRACT Source A Scale_Lo Source B N10:6 Dest Offset Rung 2:4 Convert Enable During Runtime N10:10 MULTIPLY Source A Analog_In 1000 Source B Slope_x10K...
  • Page 66 Calibrate the Module Calibration Procedure Recalibrate every six months, or as necessary. 1. Let the module warm up under power for at least 20 minutes at ambient operating temperature. 2. Determine the scaled high and low values you wish to use in your application.

  • Page 67: Test The Slc 500 System

    Chapter Test Module Operation This chapter helps you test the operation of the module’s I/O channels. Test the SLC 500 System Testing the SLC 500 system is beyond the scope of this manual. We mention it here only because you should test and debug at the system level before testing and debugging the module in the system.
  • Page 68 Test Module Operation Inspect Module Switches and Wiring Inspect the module as follows before installing it. 1. Set the input configuration switches 1 and 2 correctly. 2. Check that wiring connections are OK and no wires are missing or broken. 3.
  • Page 69 Test Module Operation Leave the module connected to the output device to serve as the output load where possible, but inhibit its affect on controlling the process. Substitute a passive load for the active device as an alternative. Process operation during system checkout can be hazardous to ATTENTION personnel.
  • Page 70 Test Module Operation Test Analog Inputs Before testing the module’s input channels, the SLC 500 system must be installed and tested according to the SLC 500 Modular Hardware Style User Manual, publication 1747-UM011. The processor must be connected to a programming device, properly configured, and must have no rungs in its ladder program.
  • Page 71 Test Module Operation 3. With the programming device on-line, select the processor’s Test- Continuous scan mode. This provides a safer testing mode because outputs are not energized. 4. Display the data in File 2 (Input Image table). 5. Select the Data Monitor mode of your programming device when viewing I/O point I:1.0.
  • Page 72 Test Module Operation Test Analog Outputs Before testing the module’s output channels, the SLC 500 system must be installed and tested according to the SLC 500 Modular Hardware Style User Manual, publication 1747-UM011. The processor must be connected to a programming device, properly configured, and must have no rungs in its ladder program.
  • Page 73 Test Module Operation 5. Download the test rung to the processor and select RUN mode. 6. Display the data in address N7:0. 7. Enter the lower limit in N7:0. For example, if the lower limit is 1 volt, enter 3277 into N7:0. 8.
  • Page 74 Test Module Operation Publication 1746-UM009B-EN-P - September 2007...

  • Page 75: Preventive Maintenance

    Chapter Maintenance and Safety This chapter provides preventive maintenance information and safety considerations when troubleshooting your SLC 500 system. Preventive Maintenance The printed circuit boards of the analog modules must be protected from dirt, oil, moisture, and other airborne contaminants. To protect these boards, the SLC 500 system must be installed in an enclosure suitable for the environment.

  • Page 76: Safety Considerations When Troubleshooting

    Maintenance and Safety Safety Considerations Safety considerations are an important element of proper troubleshooting procedures. Actively thinking about the safety of When Troubleshooting yourself and others, as well as the condition of your equipment, is of primary importance. Refer to the Installation and Operation Manual for Fixed Hardware Style Programmable Controllers, publication 1747-6.21, or SLC 500 Module Hardware Style User Manual, publication 1747-UM011, for additional information on troubleshooting.

  • Page 77: Appendix A General Description

    Appendix Module Specifications General Description The 1746-FIO4I and 1746-FIO4V fast analog I/O modules provide two input and two output channels. Input channels are the same for both types of modules: you select either current or voltage operation for each channel. The 1746-FIO4I module contains two current-output channels, while the 1746-FIO4V module contains two voltage-output channels.
  • Page 78 Module Specifications Electrical Specifications - 1746-FIO4I, 1746-FIO4V Attribute Value Noise Immunity NEMA standard ICS 2-230 Temperature, Operating 0… 60 °C (32…140 °F) Temperature, Storage –40…85 °C (–40…185 °F) Relative Humidity 5 … 95% (noncondensing) General Input Specifications - 1746-FIO4I, 1746-FIO4V Attribute Value Converter Resolution...
  • Page 79 Module Specifications Voltage Input Specifications - 1746-FIO4I, 1746-FIO4V Attribute Value Overall Accuracy at 25 °C (77 °F) ±0.440% of full scale Overall Accuracy at 60 °C (140 °F) ±0.750% of full scale Overall Accuracy Drift ±88 ppm/°C (max) Gain Error at 25 °C (77 °F) ±0.323% of full scale Gain Error at 0…60 °C (32…140 °F) ±0.530% of full scale...
  • Page 80 Module Specifications Current Output Specifications for 1746-FIO4I Attribute Value Converter Resolution 14 bit Location of LSB in I/O Image Word 0000 0000 0000 01XX Non-linearity 0.05% of full scale (max) Conversion Method R–2R ladder Step Response 2.5 ms (at 95%) Ω...
  • Page 81 Module Specifications Voltage Output Specifications for 1746-FIO4V Attribute Value Converter Resolution 14 bit Location of LSB in I/O Image Word 0000 0000 0000 01XX Non-linearity 0.05% of full scale Conversion Method R–2R ladder Step Response (to 95%) 2.5 ms (normal) Ω...
  • Page 82 Module Specifications Publication 1746-UM009B-EN-P - September 2007...

  • Page 83: Use 2'S-Complement Binary Numbers

    Appendix 2’s-complement Binary Numbers Use 2’s-complement Binary The SLC 500 processor stores data as 16-bit binary numbers. The processor uses 2’s-complement binary format when making Numbers mathematical computations and when storing analog values in the I/O image table. As indicated in the figure on next page, the equivalent decimal value of the 2’s-complement binary number is the sum of corresponding position values.
  • Page 84 2’s-complement Binary Numbers Positive Decimal Values The far left position is always 0 for positive values. Binary notation and 2’s-complement binary notation are identical for positive values. This format limits the maximum positive value to 32767 when all positions are 1 except for the far left position (see figure below). Study these examples.
  • Page 85 2’s-complement Binary Numbers Negative Decimal Values The far left position is always 1 for negative values. The equivalent decimal value of a negative 2’s-complement binary number is obtained by subtracting 32768 from the sum of the other position values. In the figure below, all positions are 1 and the value is 32767 – 32768 = –1.
  • Page 86 2’s-complement Binary Numbers Publication 1746-UM009B-EN-P - September 2007...
  • Page 87 Appendix Module Input and Output Circuits These wiring diagrams show the input circuit, voltage output, and current output for the fast analog modules. Input Circuit for 1746-FIO4V and 1746-FIO4I Modules 500K 33pF > 500K IN – S1, S2 – Filter >...
  • Page 88 Module Input and Output Circuits Current Output Circuit for 1746-FIO4I Modules Positive Voltage Supply > 0.1 µF > 4.99K – from > 1 µF Publication 1746-UM009B-EN-P - September 2007...
  • Page 89 Index Numerics 2’s complement binary numbers 83 general description 77 negative decimal values 85 general input specifications 78 positive decimal values 84 ground loops minimize 20 ground the cable 17 address I/O image words 31 analog output scale 47 input channel filtering 36 input channels configure 13 calculate linear relationship 45...
  • Page 90 Index non-retentive analog output 40 safe state for outputs 38 non-retentive programming 39 safety considerations when troubleshooting 76 scale analog input 44 calculate linear relationship 47 PID control with analog I/O scaling 56 ladder logic 48 ladder logic 57 scale analog output 47 power requirements scale offsets 49 determine 11...
  • Page 91 ___No, there is no need to contact me ___Yes, please call me ___Yes, please email me at _______________________ ___Yes, please contact me via _____________________ Return this form to: Rockwell Automation Technical Communications, 1 Allen-Bradley Dr., Mayfield Hts., OH 44124-9705 Fax: 440-646-3525 Email: RADocumentComments@ra.rockwell.com Publication CIG-CO521C-EN-P- May 2003...
  • Page 92 PLEASE FASTEN HERE (DO NOT STAPLE) Other Comments PLEASE FOLD HERE NO POSTAGE NECESSARY IF MAILED IN THE UNITED STATES BUSINESS REPLY MAIL FIRST-CLASS MAIL PERMIT NO. 18235 CLEVELAND OH POSTAGE WILL BE PAID BY THE ADDRESSEE 1 ALLEN-BRADLEY DR MAYFIELD HEIGHTS OH 44124-9705...
  • Page 94 Outside United Please contact your local Rockwell Automation representative for States return procedure. Publication 1746-UM009B-EN-P - September 2007 PN XXXXXX-XX Supersedes Publication 1746-6.9 - May 1995 Copyright © 2007 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.

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