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Allen-Bradley 1747-ACN15 User Manual

Allen-Bradley 1747-ACN15 User Manual

Controlnet adapter module
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ControlNet™
Adapter Module
(Catalog Numbers 1747-ACN15,
1747-ACNR15)
User Manual

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Summary of Contents for Allen-Bradley 1747-ACN15

  • Page 1 ControlNet™ Adapter Module (Catalog Numbers 1747-ACN15, 1747-ACNR15) User Manual...
  • Page 2 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.

  • Page 3: Table Of Contents

    Table of Contents Preface Who Should Use this Manual ......P-1 Purpose of this Manual ........P-1 Related Documentation .
  • Page 4 Table of Contents Chapter 4 Application Examples Example 1 ..........4-2 Hardware Setup .
  • Page 5 Table of Contents Grounding Guidelines....... . B-9 Master Control Relay ....... B-11 Emergency-Stop Switches .
  • Page 6 Table of Contents Publication 1747-UM003A-EN-P...

  • Page 7: Who Should Use This Manual

    This manual also includes several application examples. Related Documentation The following documents contain additional information concerning Allen-Bradley products. To obtain a copy, contact your local Allen-Bradley office or distributor. Publication Publication Number ControlNet PLC-5 Programmable Controllers User Manual Phase 1.5...

  • Page 8: Rockwell Automation Support

    Preface Rockwell Automation Rockwell Automation offers support services worldwide, with over 75 Sales/ Support Offices, 512 authorized Distributors and 260 authorized Systems Support Integrators located throughout the United States alone, plus Rockwell Automation representatives in every major country in the world. Local Product Support Contact your local Rockwell Automation representative for: •...

  • Page 9: Chapter 1 Chapter Objectives

    Chapter Introducing the ControlNet Adapter Module Chapter Objectives This chapter describes the ControlNet adapter modules (cat. no. 1747-ACN15 and 1747-ACNR15): • features • hardware components, including – diagnostic indicators – network access port (NAP) – ControlNet connectors – network address switch assemblies...

  • Page 10: Diagnostic Indicators

    ADDRESS/STATUS Diagnostic Indicators Net Address Health Indicators ControlNet Status Indicators Network Access Port (NAP) 1747-ACN15 1747-ACNR15 ControlNet Media Port ControlNet Redundant Media Port (1747-ACNR15 only) Diagnostic Indicators Health indicators are located on the front panel of the adapter module, See Figure 1.1. They show both normal operation and error conditions in your remote I/O system.

  • Page 11: Controlnet Connectors

    Introducing the ControlNet Adapter Module ControlNet Connectors Cable connection to the module is through standard BNC connectors on the module frontplate. Figure 1.2 Redundant Media System trunkline A = Terminator Terminator trunkline B = Terminator Terminator end device PLC-5C or SLC 5/02 or later end device with 1747-SCNR (1) End device supporting redundant cabling is a 1747-ACNR15.
  • Page 12 Introducing the ControlNet Adapter Module Publication 1747-UM003A-EN-P...

  • Page 13: Chapter 2 Chapter Objectives

    Chapter Installing Your ControlNet Adapter Module Chapter Objectives This chapter describes the procedures for installing your ControlNet adapter module. These include: • European Directive compliance • determining power requirements • setting the network address switches • setting the I/O chassis switches •...

  • Page 14: Low Voltage Directive

    Part 2 - Equipment Requirements and Tests. For specific information required by EN 61131-2, see the appropriate sections in this publication, as well as the following Allen-Bradley publications: • Industrial Automation Wiring and Grounding Guidelines For Noise Immunity, publication 1770-4.1 •...

  • Page 15: Installing The Adapter Module In The Chassis

    Installing Your ControlNet Adapter Module Installing the Adapter Once you’ve set the appropriate switch assemblies for your adapter module, follow these procedures for installation. Module in the Chassis Refer to the Industrial Controller Wiring and Grounding Guidelines, Publication 1770-4.1 for proper grounding and wiring methods to use when installing your module.

  • Page 16: Connecting Your Adapter To The Controlnet Network

    A to channel A on the 1747-ACNR15 • from trunkline B to channel B on the 1747-ACNR15 While both channels are active, Allen-Bradley recommends using channel A for non-redundant media. Do not allow any metal portions of the tap to contact any ATTENTION conductive material.
  • Page 17 Installing Your ControlNet Adapter Module segment 1 dust cap 2. Remove and discard the dust caps from the adapter BNC jacks. 3. Connect this tap’s straight or right angle connector to the BNC connector on the adapter. To prevent inadvertent reversal of the tap connections IMPORTANT (resulting in incorrect LED displays and troubleshooting), check the tap drop cable for a label indicating the attached...

  • Page 18: Connecting Programming Terminals To The Network Via The Nap

    Installing Your ControlNet Adapter Module Connecting Programming You can connect programming terminals to the ControlNet network by connecting to the network access port (NAP). Two methods are shown below. Terminals to the Network via the NAP Using 1770-KFC Communication Interface and NAP Using 1784-KTC or -KTCx Communication Card and NAP Programming Terminal Programming Terminal...

  • Page 19: Powerup Sequence

    Installing Your ControlNet Adapter Module Powerup Sequence There are three health indicators on the module. The LED on the right (labeled “OK”) is the generic module health indicator. The LED in the middle (labeled “A”) is the health indicator of cable A. On the 1747-ACNR15, the LED on the left (labeled “B”) is the health indicator for cable B.
  • Page 20 Installing Your ControlNet Adapter Module Publication 1747-UM003A-EN-P...

  • Page 21: Chapter 3 Chapter Objectives

    • 1203-SM1 Scanport module (Class 4 operation) (This module is compatible when configured for class 1 operation.) • 1747-SCNR ControlNet Scanner module (G files not required, however, this module is not supported by the 1747-ACN15/ ACNR15) A small number of 1746 modules are currently not supported by the adapter due to lack of an EDS (electronic data sheet) file.

  • Page 22: Overview Of Adapter Operation

    Software Requirements RSNetWorx for ControlNet version 2.23.00 or greater is required to configure the 1747-ACN15/ACNR15 adapters. If you only have RSNetWorx for ControlNet version 2.22.18, it is necessary to add the Service Pack in order to configure connections with the 1747-ACNR15 adapter. To add the Service Pack, follow the steps below.

  • Page 23: Rack And Module Connections

    Planning to Use Your ControlNet Adapter Module Rack and Module Connections There are two types of scheduled connections supported by the 1747-ACN15, -ACNR15: the rack connection and the individual module connection. Rack Connections For each rack connection, RSNetWorx maps 8, 16, or 32 input and output bits per slot.

  • Page 24: Optimizing Slc Controlnet Adapter Rack Connections

    Planning to Use Your ControlNet Adapter Module Module Connections Module connections are performed in a deterministic and repeatable manner. This connection allows a memory and ControlNet bandwidth efficient way to connect to an individual module with more I/O data than could be attempted in the above rack connections, or to transfer M0/M1 file data.

  • Page 25: Module Keying

    Planning to Use Your ControlNet Adapter Module If we change the default number of words for the input and output values (to 4 and 4) when inserting the connection to the 1747-ACNR15 adapter, Node 2 will produce 4 input words over ControlNet and Node 1 will consume and place those words at addresses I:e.1-4, where the slot 1 inputs correspond to I:e.3 and the slot 2 inputs correspond to I:e.4.

  • Page 26: Output Operation During Fault And Idle Modes

    Planning to Use Your ControlNet Adapter Module The electronic keying option offered by RSNetWorx for NOTE rack connections applies to the 1747-ACN15 and -ACNR15 modules only. Missing or misplaced modules are not detected if the module in question is configured within a rack connection.
  • Page 27 Planning to Use Your ControlNet Adapter Module Private- Data- Memory Table Data Update Buffers Files Scheduled Data Transfer Program Scan The ControlNet system places your scheduled transfers in the first part of each Network Update Interval. Time is automatically reserved for network maintenance.
  • Page 28 Planning to Use Your ControlNet Adapter Module Publication 1747-UM003A-EN-P...
  • Page 29 Table 4.A Table of Contents Example Number Title Page 1747-SCNR ControlNet Scanner Controlling Discrete I/O on ControlNet via a 1747-ACN15 ControlNet Adapter Using a Rack Connection 1747-SCNR ControlNet Scanner Controlling Discrete and 4-11 Analog I/O on ControlNet via a 1747-ACN15 ControlNet...

  • Page 30: Example 1

    Application Examples Example 1 1747-SCNR ControlNet Scanner Controlling Discrete I/O on ControlNet via a 1747-ACN15 ControlNet Adapter Using a Rack Connection This example is organized into the following sections: • Hardware Setup • Configuring The ControlNet Network with RSNetWorx™ for ControlNet, Revision 2.23.02 or later...

  • Page 31: Configuring The Controlnet Network With Rsnetworx™ For Controlnet

    Application Examples Configuring The ControlNet Network with RSNetWorx™ for ControlNet Start RSNetWorx for ControlNet by double clicking on its icon. The following screen appears: At this point, you could configure your ControlNet network off-line and then download it to the network. This example will, instead, go on-line and configure the network.
  • Page 32 99 is the programming terminal. Node 1 is the 1747-SCNR and node 3 is the 1747-ACN15. The 1747-ACN15 resides in slot 0 of its chassis, while slot 1 contains a 1746-IA16, slot 2 contains a 1746-OB16, and slot 3 contains a 1746-IV16. For this example, a single 16-bit rack connection will be configured to read/write the three discrete I/O modules.
  • Page 33 Application Examples Configuring a Chassis Connection You are now ready to configure the necessary ControlNet connection to read/ write data from the SLC processor to the discrete I/O modules. Right click on the 1747-SCNR and choose Scanlist Configuration. (If you are prompted to enter the edit mode, click YES.) The following screen appears: Publication 1747-UM003A-EN-P...
  • Page 34 Application Examples The 1747-SCNR and 1747-ACN15 are shown as nodes 1 and 3 respectively. Under the 1747-ACN15, the 3 I/O modules in slots 1 through 3 of the 1747-ACN15 chassis are listed. In order to establish a 16-bit rack connection to the 1747-ACN15 chassis, right click on the 1747-ACN15 and choose Insert Connection.
  • Page 35 NOTE Therefore, for this example, the input data for the input module in slot 1 of the remote 1747-ACN15 chassis is written to I:3.3 in the SLC processor’s input image. The input module in slot 3 is written to I:3.5.
  • Page 36 Application Examples You have successfully configured a rack connection to the remote chassis to communicate with the discrete I/O modules. At this point, you may also configure the state of the outputs in the remote ControlNet chassis when the controlling processor is placed into the Program mode or if communications are lost to the remote chassis.
  • Page 37 B LED should be off, unless you are using the redundant media option, which is not being used in this example. The 1747-ACN15 should be displaying that it is active (ACTV) and its LEDs should be solid green for A and OK.

  • Page 38: Create A Ladder Logic Program

    4-10 Application Examples Create a Ladder Logic Program The final step is to write a ladder program for the SLC processor, including configuring the 1747-SCNR for slot 3 of the processor’s chassis. After downloading the program to your processor, place it into the RUN mode. Your program should now be able to read data from the 1746-IA16 in word I:3.3, write to the 1746-OB16 in word O:3.2 and read data from the 1746-IV16 in word I:3.5.

  • Page 39: Example 2

    4-11 Example 2 1747-SCNR ControlNet Scanner Controlling Discrete and Analog I/O on ControlNet via a 1747-ACN15 ControlNet Adapter Using a Rack Connection This example is organized into the following sections: • Hardware Setup • Configuring The ControlNet Network with RSNetWorx™ for ControlNet •...

  • Page 40: Configuring The Controlnet Network With Rsnetworx™ For Controlnet

    4-12 Application Examples Configuring The ControlNet Network with RSNetWorx™ for ControlNet Start RSNetWorx for ControlNet by double clicking on its icon. The following screen appears: At this point, you could configure your ControlNet network off-line and then download it to the network. This example, instead, goes on-line and configure the network.
  • Page 41 99 is the programming terminal. Node 1 is the 1747-SCNR and node 3 is the 1747-ACN15. The 1747-ACN15 resides in slot 0 of its chassis, while slot 1 contains a 1746-IA16, slot 2 contains a 1746-OB16, and slot 3 contains a 1746-NIO4V. For this example, a single 32-bit rack controller is configured to read/write the three I/ O modules.
  • Page 42 4-14 Application Examples Configuring a Rack Connection You are now ready to configure the necessary ControlNet connection to read/ write data from the SLC processor to the discrete I/O modules and to the 1746-NIO4V analog module. Right click on the 1747-SCNR and choose Scanlist Configuration.
  • Page 43 4-15 The 1747-SCNR and 1747-ACN15 are shown as nodes 1 and 3 respectively. Under the 1747-ACN15, the 3 I/O modules in slots 1 through 3 of the 1747-ACN15 chassis are listed. We specify a 32-bit rack connection so that the two words of analog input and two words of analog output data from the 1746-NIO4V module can be transferred via the rack connection.
  • Page 44 4-16 Application Examples RSNetWorx allows more than one exclusive owner rack IMPORTANT connection type to be configured to a 1747 adapter (e.g. 8-bit exclusive owner, 16-bit exclusive owner, and 32-bit exclusive owner), however only one exclusive owner rack connection can be operational at one time. It is recommended that only one exclusive owner rack connection type be configured to the adapter to avoid contention between multiple connections.
  • Page 45 There is a 2-word offset for input data for rack connections. NOTE Therefore, for this example, the input data for the input module in slot 1 of the remote 1747-ACN15 chassis is written to I:3.3 in the SLC processor’s input image. The starting input address configured in RSNetWorx for this rack connection was I:3.1, but I:3.1 and I:3.2 are used...
  • Page 46 4-18 Application Examples You have successfully configured a rack connection to the remote chassis to communicate with the two discrete and one analog I/O modules. At this point you may also configure the state of the outputs in the remote ControlNet chassis when the processor is placed into the Program mode or if communications are lost to the remote chassis.
  • Page 47 B LED should be off, unless you are using the redundant media option, which is not being used in this example. The 1747-ACN15 should be displaying that it is active (ACTV) and its LEDs should be solid green for A and OK.

  • Page 48: Create A Ladder Program

    4-20 Application Examples Create a Ladder Program The final step is to write a ladder program for the SLC processor, including configuring the 1747-SCNR for slot 3 of the processor’s chassis. After downloading the program to your processor, place it into the RUN mode. Your program should now be able to read data from the 1746-IA16 in word I:3.3 and write to the 1746-OB16 in word O:3.3.

  • Page 49: Example 3

    Application Examples 4-21 Example 3 1747-SCNR ControlNet Scanner Controlling Discrete and Analog I/O on ControlNet via a 1747-ACN15 ControlNet Adapter Using Rack and Module Connections This example is organized into the following sections: • Hardware Setup • Configuring The ControlNet Network with RSNetWorx™ for ControlNet •...

  • Page 50: Configuring The Controlnet Network With Rsnetworx™ For Controlnet

    4-22 Application Examples Configuring The ControlNet Network with RSNetWorx™ for ControlNet Start RSNetWorx for ControlNet by double clicking on its icon. The following screen appears: At this point, you could configure your ControlNet network off-line and then download it to the network. This example, instead, goes on-line and configure the network.
  • Page 51 99 is the programming terminal. Node 1 is the 1747-SCNR and node 3 is the 1747-ACN15. The 1747-ACN15 resides in slot 0 of its chassis, while slot 1 contains a 1746-IA16, slot 2 contains a 1746-OB16, and slot 3 contains a 1746-NI8. For this example, 2 separate ControlNet connections are configured.
  • Page 52 4-24 Application Examples Configuring a Rack Connection You are now ready to configure the necessary ControlNet connections to read/ write data from the SLC processor to the discrete I/O modules and to the analog input module. Right click on the 1747-SCNR and choose Scanlist Configuration.
  • Page 53 Application Examples 4-25 As you can see, the 1747-SCNR and 1747-ACN15 are shown as nodes 1 and 3 respectively. Under the 1747-ACN15, the 3 I/O modules in slots 1 through 3 of the 1747-ACN15 chassis are listed. In order to establish a 16-bit rack connection to the 1747-ACN15 chassis, right click on the 1747-ACN15 and choose ControlNet Configuration.
  • Page 54 There is a 2-word offset for input data for rack NOTE connections. Therefore, for this example, the input data for the input module in slot 1 of the remote 1747-ACN15 chassis is written to I:3.3 in the SLC processor’s input image.
  • Page 55 Application Examples 4-27 You have successfully configured a rack connection to the remote chassis to communicate with the two discrete I/O modules. At this point you may also configure the state of the outputs in the remote ControlNet chassis when the processor is placed into the Program Mode or if communications are lost to the remote chassis.
  • Page 56 In this case choose M-file addresses for the 8-input analog module. The NI8 module must use Class 3 operation in a 1747-ACN15 chassis. It requires 12 output words and 16 input words. M-file words are used for this in the 1747-SCNR.
  • Page 57 B LED should be off, unless you are using the redundant media option, which is not being used in this example. The 1747-ACN15 should be displaying that it is active (ACTV) and its LEDs should be solid green for A and OK and the B LED should be off.

  • Page 58: Create A Ladder Logic Program

    4-30 Create a Ladder Logic Program The final step is to write a ladder program for the SLC processor, including configuring the 1747-SCNR for slot 3 of the processor’s chassis. After downloading the program to your processor, place it into the RUN mode. Your program should now be able to read data from the 1746-IA16 in word I:3.3 and write to the 1746-OB16 in word O:3.2.

  • Page 59: Example 4

    4-31 Example 4 1747-SCNR ControlNet Scanner Controlling Discrete I/O and Serial Data with a 1746-BAS Module on ControlNet via a 1747-ACN15 ControlNet Adapter Using Rack and Module Connections This example is organized into the following sections: • Hardware Setup • Configuring The ControlNet Network with RSNetWorx™ for ControlNet •...

  • Page 60: Configuring The Controlnet Network With Rsnetworx™ For Controlnet

    4-32 Configuring The ControlNet Network with RSNetWorx™ for ControlNet Start RSNetWorx for ControlNet by double clicking on its icon. The following screen appears: At this point, you could configure your ControlNet network off-line and then download it to the network. This example, instead, goes on-line and configure the network.
  • Page 61 Node 1 is the 1747-SCNR and node 3 is the 1747-ACN15. The 1747-ACN15 resides in slot 0 of its chassis, while slot 1 contains a 1746-IA16, slot 2 contains a 1746-OB16, and slot 3 contains a Series B 1746-BAS. For this example, 2 separate ControlNet connections are configured.
  • Page 62 YES.) The following screen appears: As you can see, the 1747-SCNR and 1747-ACN15 are shown as nodes 1 and 3 respectively. Under the 1747-ACN15, the 3 I/O modules in slots 1 through 3 of the 1747-ACN15 chassis are listed.
  • Page 63 There is a 2-word offset for input data for rack connections. NOTE Therefore, for this example, the input data for the input module in slot 1 of the remote 1747-ACN15 chassis is written to I:3.3 in the SLC processor’s input image. The starting input address configured in RSNetWorx for this rack connection was I:3.1, but I:3.1 and I:3.2 are used...
  • Page 64 4-36 RSNetWorx allows more than one exclusive owner rack IMPORTANT connection type to be configured to a 1747 adapter (e.g. 8-bit exclusive owner, 16-bit exclusive owner, and 32-bit exclusive owner), however only one exclusive owner rack connection can be operational at one time. It is recommended that only one exclusive owner rack connection type be configured to the adapter to avoid contention between multiple connections.
  • Page 65 4-37 By default, outputs in all slots in the remote chassis are reset if the processor is placed into the Program mode or if communications are lost for any reason. Two other choices are offered when one of the two conditions occur. They are: •...
  • Page 66 72 words to and from the Basic module. Those 72 M0 and 72 M1 file words reside in the 1747-SCNR and are used to store the data sent to the 1747-ACN15 from the SLC-5/04 processor and to store the data received from the 1747-ACN15 for the SLC-5/04 processor.
  • Page 67 4-39 You must now configure this connection for the 8 I/O words and the 64 M0/M1 file words. Click on the “Advanced” tab in the Connection Properties window. The following screen appears: Publication 1747-UM003A-EN-P...
  • Page 68 4-40 By default, the Chunk 1 Output File is the output image file for the Basic module and the Chunk 1 Input File is the input image file for the Basic module. You must then assign the Chunk 2 Output File as the Basic module’s M0 file and the Chunk 2 Input File as the Basic module’s M1 file.
  • Page 69 0 when the SLC processor is placed into the PROGRAM mode or if communications are lost to the 1747-ACN15. The Hold Last State option is not available for the 1746-BAS.
  • Page 70 B LED should be off, unless you are using the redundant media option, which is not being used in this example. The 1747-ACN15 should be displaying that it is active (ACTV) and its LEDs should be solid green for A and OK.

  • Page 71: Create Ladder Logic And Basic Module Programs

    SLC processor’s data table beginning at N12:0, it is sent to the 1747-SCNR, then to the Basic module via ControlNet and the 1747-ACN15 and is ultimately sent out PRT1 of the BAS module. If you used a cable to loop the data back in PRT2, this data is sent to the 1747-SCNR via ControlNet and ultimately appears in the SLC processor’s data table beginning with address...
  • Page 72 When the Basic module is placed into the RUN mode, any data placed into the SLC processor’s data table beginning with N12:0 is sent to the 1747-SCNR, which sends it to the 1747-ACN15 via ControlNet and then to the Basic module. The Basic module sends the data out PRT1 and this data is looped right back in the Basic module’s PRT2.
  • Page 73 4-45 SLC Processor Ladder Program This rung gives the next rung a false-to-true transition every 1 second. T4:1 0000 Timer On Delay Timer T4:1 Time Base 0.01 Preset 100 < Accum 86 < This rung copies up to 64 words (beginning with N12:0) to the SCNR for transfer to the Basic module on ControlNet.

  • Page 74: Example 5

    4-46 Example 5 1747-SCNR ControlNet Scanner Controlling Discrete I/O and Specialty Modules Requiring M0 File Configuration on ControlNet via a 1747-ACN15 ControlNet Adapter Using Rack and Module Connections This example is organized into the following sections: • Hardware Setup • Configuring The ControlNet Network with RSNetworx for ControlNet •...

  • Page 75: Configuring The Controlnet Network With Rsnetworx For Controlnet

    4-47 Configuring The ControlNet Network with RSNetWorx for ControlNet Start RSNetWorx for ControlNet by double clicking on its icon. The following screen should appear: At this point, you could configure your ControlNet network off-line and then download it to the network. This example will, instead, go on-line and configure the network.
  • Page 76 For this example, the on-line network screen should look like the following, where node 99 is the programming terminal. Node 1 is the 1747-SCNR and node 3 is the 1747-ACN15. The 1747-ACN15 resides in slot 0 of its chassis, while slot 1 contains a 1746-IA16, slot 2 contains a 1746-OB16, and slot 3 contains a 1746-HSCE.
  • Page 77 4-49 Configuring a Rack Connection You are now ready to configure the necessary ControlNet connections to read/write data from the SLC processor to the discrete I/O modules and to the high speed counter module. Right click on the 1747-SCNR and choose Scanlist Configuration.
  • Page 78 4-50 As you can see, the 1747-SCNR and 1747-ACN15 are shown as nodes 1 and 3 respectively. Under the 1747-ACN15, the 3 I/O modules in slots 1 through 3 of the 1747-ACN15 chassis are listed. In order to establish a 16-bit rack connection to the 1747-ACN15 chassis, right click on the 1747-ACN15 and choose ControlNet Configuration.
  • Page 79 There is a 2-word offset for input data for rack NOTE connections. Therefore, for this example, the input data for the input module in slot 1 of the remote 1747-ACN15 chassis is written to I:3.3 in the SLC processor’s input image.
  • Page 80 4-52 You have successfully configured a rack connection to the remote chassis to communicate with the two discrete I/O modules. At this point you may also configure the state of the outputs in the remote ControlNet chassis when the processor is placed into the Program Mode or if communications are lost to the remote chassis.
  • Page 81 4-53 Configuring a Module Connection Next, you need to configure a module connection for the 1746-HSCE high speed counter module. If the previous window is still open, click Apply, then OK to accept the rack connection. Right click on the 1746-HSCE module in the Scanlist Configuration window and select Insert Connection.
  • Page 82 4-54 Since the 1746-HSCE module uses 42 M0 file words for configuration, the user must enter the configuration values under the Configuration Setting tab so that the 1747-SCNR scanner can write the configuration values each time a module configuration is made to the HSCE module. Below are the example configuration values for setting up the 1746-HSCE module in basic count-only mode.
  • Page 83 4-55 Publication 1747-UM003A-EN-P...
  • Page 84 B LED should be off, unless you are using the redundant media option, which is not being used in this example. The 1747-ACN15 should be displaying that it is active (ACTV) and its LEDs should be solid green for A and OK.

  • Page 85: Create A Ladder Logic Program

    4-57 Create a Ladder Logic Program The final step is to write a ladder program for the SLC processor, including configuring the 1747-SCNR for slot 3 of the processor’s chassis. After downloading the program to your processor, place it into the RUN mode. Your program should now be able to read data from the 1746-IA16 in word I:3.3 and write to the 1746-OB16 in word O:3.2.
  • Page 86 4-58 Publication 1747-UM003A-EN-P...

  • Page 87: Chapter 5 Chapter Objectives

    Chapter Troubleshooting Chapter Objectives In this chapter, you will learn how to use the indicators on the module frontplate for troubleshooting the module. This includes: • troubleshooting with the status indicators and status display, including: – health indicators and display mnemonics –...

  • Page 88: Health Indicators And Display Mnemonics

    None Module is not communicating. Power supply fault. Check power supply, and seat adapter firmly in chassis. None Module is not communicating. Defective adapter. Contact Allen-Bradley service. POST Adapter is running Power On Self None None Test. Amber 0000 Adapter is running Power On Self...

  • Page 89: Controlnet Status Indicators

    Cause Action No power None or power up Steady red Faulted unit Cycle power If fault persists, contact Allen-Bradley representative or distributor. Alternating red/ Self-test None green Alternating red/ Incorrect node Check network address and other ControlNet...
  • Page 90 Troubleshooting Publication 1747-UM003A-EN-P...
  • Page 91 Appendix Specifications Description Specification Module Location 1746 I/O chassis, leftmost slot Interconnect Cable Quad shield RG-6 coaxial cable - Refer to the ControlNet Cable System Manual, publication 1786-6.2 for more information. Power Dissipation 5 Watts Thermal Dissipation 17.06 BTU/hr Backplane Current 0.9A at 5V dc Environmental Conditions: •...
  • Page 92 Specifications Publication 1747-UM003A-EN-P...

  • Page 93: Selecting Your Slc 500/1746 Control Power Supply

    Appendix Understanding Your SLC 500/1746 Control System This appendix provides information on using SLC 500/1746 control systems. Topics include: • selecting your SLC 500/1746 control power supply • system installation recommendations • mounting your control system • installing your I/O modules •...

  • Page 94: Power Supply Specifications

    Understanding Your SLC 500/1746 Control System Power Supply Specifications Description: Specification: 1746- Line Voltage 85 to 132/170 to 265V ac 47 19.2 to 28.8V 85 to 130/170 90 to 146V dc 30 to 60V 10 to 30V dc to 63 Hz to 265V ac 47 to 63 Hz Typical Line...
  • Page 95 Understanding Your SLC 500/1746 Control System Example for Selecting a 1746 Power Supply Select a power supply for chassis 1 and chassis 2 for the control system below. (The worksheets for this example start on Page B-4.) Chassis 1 Chassis 2 Slot 0 1 2 3 Slot...
  • Page 96 Understanding Your SLC 500/1746 Control System Example - Worksheet for Selecting a 1746 Power Supply Procedure 1. For each slot of the chassis that contains a module, list the slot number, the catalog number of the module, and its 5V and 24V maximum currents.
  • Page 97 Understanding Your SLC 500/1746 Control System Worksheet for Selecting a 1746 Power Supply Make copies of this worksheet as needed. For a detailed list of device load currents, refer to the SLC 500 price sheet, product instruction sheet, or appropriate product data. Consider future system expansion when selecting a power supply.

  • Page 98: Slc 500 System Installation Recommendations

    Understanding Your SLC 500/1746 Control System This section provides specific recommendations to help you install your SLC 500/1746 components. For general installation guidelines, also refer to the requirements specific to your region. • Europe: Reference the standards found in EN 60204 and your national SLC 500 System Installation regulations.

  • Page 99: Spacing Considerations

    Understanding Your SLC 500/1746 Control System The enclosure should be equipped with a disconnect device. To calculate the heat dissipation of your controller, Refer to Calculating Heat Dissipation for Your Control System on page B-34. Spacing Considerations Up to three chassis can be connected (for a maximum of 30 I/O slots). Follow the recommended minimum spacing shown below to allow for convection cooling within the enclosure.

  • Page 100: Preventing Excessive Heat

    Understanding Your SLC 500/1746 Control System Preventing Excessive Heat For most applications, normal convection cooling keeps the adapter components within the specified operating range of 0° to +60° C (+32° to +140° F). Proper spacing of components within the enclosure is usually sufficient for heat dissipation.

  • Page 101: Grounding Guidelines

    • Segregate I/O wiring by signal type. Bundle wiring with similar electrical characteristics together. Wires with different signal characteristics should be routed into the enclosure by separate paths. Refer to Allen-Bradley Programmable Controller Grounding and Wiring Guidelines, publication number 1770-4.1. United States Only: If the adapter is being installed within ATTENTION a potentially hazardous environment (i.e., Class I, Division...
  • Page 102 Allen-Bradley Programmable Controller Grounding and Wiring Guidelines, publication number 1770-4.1. United States: An authoritative source on grounding requirements for most installations is the National Electrical Code. Also, refer to Allen-Bradley Programmable Controller Grounding and Wiring Guidelines, publication number 1770-4.1.

  • Page 103: Master Control Relay

    Understanding Your SLC 500/1746 Control System B-11 This figure shows you how to run ground connections from the chassis to the ground bus. Two acceptable grounding methods are shown; we recommend using a ground bus because it reduces the electrical resistance at the connection.
  • Page 104 B-12 Understanding Your SLC 500/1746 Control System If you are using a dc power supply, interrupt the dc side IMPORTANT rather than the ac side to avoid the additional delay of power supply turn-on and turn-off. The dc power supply should receive its power directly from the fused secondary of the transformer.

  • Page 105: Emergency-Stop Switches

    Understanding Your SLC 500/1746 Control System B-13 Emergency-Stop Switches Adhere to the following points concerning Emergency-Stop switches: • Do not program Emergency-Stop switches in the program. Any Emergency Stop switch should turn off all machine power by turning off the master control relay.
  • Page 106 B-14 Understanding Your SLC 500/1746 Control System Schematic (Using IEC Symbols) 230V ac Disconnect Fuse 230V ac Output Circuit Isolation Operation of either of these contacts Transformer removes power from the adapter external I/O circuits, stopping machine motion. 115V ac Master Control Relay (MCR) Emergency-Stop Cat.

  • Page 107: Common Power Source

    Understanding Your SLC 500/1746 Control System B-15 Schematic (Using ANSI/CSA Symbols) 230V ac Disconnect Fuse 230V ac Output Circuit Isolation Operation of either of these contacts Transformer removes power from the adapter external I/O circuits, stopping machine motion. 115V ac Master Control Relay (MCR) Cat.

  • Page 108: Loss Of Power Source

    Because of this, the input state change from “On” to “Off” that occurs when power is removed may be recorded by the 1747-ACN15/-ACNR15 and sent to the processor before the power supply shuts down the system. Understanding this concept is important.
  • Page 109 Understanding Your SLC 500/1746 Control System B-17 Isolation If there is high frequency conducted noise in or around your distribution equipment, we recommend the use of an isolation transformer in the ac line to the power supply. This type of transformer provides isolation from your power distribution system and is often used as a “step down”...

  • Page 110: Special Considerations

    If you require a constant voltage transformer, connect it to the power supply and all input devices connected to the 1747-ACN15/-ACNR15 chassis. Connect output devices on the same power line, but their connection along the power line is normally made before the constant voltage transformer.
  • Page 111 The surge suppressors we recommend for triac outputs when switching 120V ac inductive loads are a Harris MOV, part number V220 MA2A, or an Allen-Bradley MOV, Catalog Number 599-K04 or 599-KA04, Series C or later.

  • Page 112: Output Contact Protection

    B-20 Understanding Your SLC 500/1746 Control System Table B.3 Recommended Suppressors Device Coil Voltage Suppressor Catalog Number Bulletin 700 Type R Relay 115-125V dc 700-N11 Bulletin 700 Type RM Relay 115-125V dc 700-N14 Bulletin 700 Type R Relay 230-250V dc 700-N12 Bulletin 700 Type RM Relay 230-250V dc...

  • Page 113: Mounting Your Control System

    Suitable surge suppression methods for inductive ac load devices include a varistor, an RC network, or an Allen-Bradley surge suppressor. These components must be appropriately rated to suppress the switching transient characteristic of the particular inductive device.
  • Page 114 B-22 Understanding Your SLC 500/1746 Control System 1746-A4 0.55 cm Dia. 1.1 cm Dia. 7.0 cm (0.217 in.) (0.433 in.) (2.76 in.) 17.1 cm 15.8 cm (8.73 in.) 14.0 cm (6.22 in) (5.51 in) 0.55 cm Dia. 4.5 cm (0.217 in.) 4.5 cm (1.77 in.) 1.4 cm...
  • Page 115 Understanding Your SLC 500/1746 Control System B-23 1746-A10 0.55 cm Dia. 14.0 cm 5.5 cm 1.1 cm Dia. (0.217 in.) (5.51 in.) (2.17 in.) (0.433 in.) 14.0 cm 15.8 cm (5.51 in.) (6.22 in.) 17.1 cm (6.73 in.) 0.55 cm Dia. 14.0 cm (0.217 in.) (5.51 in.)
  • Page 116 B-24 Understanding Your SLC 500/1746 Control System Link Coupler (AIC) R 2.74 (0.11) (5.75) (0.22) (6.75) (6.24) (5.41) (0.55) (0.17) (1.50) 5.5 Dia. (0.28) (0.216) Right Side View Front View Dimensions are in millimeters (inches) Publication 1747-UM003A-EN-P...

  • Page 117: Installing Your I/O Module

    Understanding Your SLC 500/1746 Control System B-25 Installing Your I/O Module This section describes the features of an I/O module, defines sinking and sourcing, and provides installation instructions for an I/O module. Features of an SLC 500 I/O Module Below is an example of a combination I/O module. OUTPUT INPUT I/O Status Indicators...

  • Page 118: Definition Of Sinking And Sourcing

    B-26 Understanding Your SLC 500/1746 Control System Definition of Sinking and Sourcing Sinking and sourcing are terms used to describe a current signal flow relationship between field input and output devices in a control system and their power supply. • Field devices connected to the positive side (+V) of the field power supply are sourcing field devices.
  • Page 119 Understanding Your SLC 500/1746 Control System B-27 Field Device Input DC Input dc Power Circuit Supply – DC Com Sinking Device with Sourcing Input Module Circuit The field device is on the negative side of the power supply between the supply and the input terminal.

  • Page 120: Inserting I/O Modules

    Circuit DC Com Inserting I/O Modules The procedure for installing I/O modules is similar to the procedure for installing the 1747-ACN15/-ACNR15 module. Follow the steps below. Disconnect power before attempting to install, remove, or ATTENTION wire modules. ! ! ! ! 1.
  • Page 121 Understanding Your SLC 500/1746 Control System B-29 3. Slide the module into the chassis until the top and bottom tabs lock into place. 4. Insert the wire tie in the slots. 5. Route the wires down and away from the module, securing them with the wire tie.

  • Page 122: Removing I/O Modules

    B-30 Understanding Your SLC 500/1746 Control System OUTPUT INPUT Wire Tie Wires leading to output and input devices 6. Cover all unused slots with the Card Slot Filler, Catalog Number 1746-N2, to keep the chassis free from dust and debris. Removing I/O Modules Disconnect power before attempting to install, remove, or ATTENTION...

  • Page 123: Wiring The I/O Modules

    Understanding Your SLC 500/1746 Control System B-31 Wiring the I/O Modules The following are general recommendations for wiring I/O devices. Before you install and wire I/O devices, disconnect power ATTENTION from the controller and any other source to the I/O devices. ! ! ! ! Use acceptable wire gauge - The I/O wiring terminals are designed to accept two wires per terminal (maximum) of the following size wire:...

  • Page 124: Using Removable Terminal Blocks

    B-32 Understanding Your SLC 500/1746 Control System Using Removable Terminal Blocks The Removable Terminal Block (RTB) is provided on all 12-point and 16-point discrete I/O modules and analog modules. They allow for faster and more convenient wiring of the I/O modules. The RTBs and modules are color-coded as follows: Table B.4 RTB Color-Coding Definitions If the color is:...
  • Page 125 Understanding Your SLC 500/1746 Control System B-33 Installing the RTB Below are guidelines for installing the RTB. 1. Be sure the color of the RTB matches the color band on the module. Inserting a wired RTB on an incorrect module can damage ATTENTION the module circuitry when power is applied.

  • Page 126: Calculating Heat Dissipation For Your Control System

    B-34 Understanding Your SLC 500/1746 Control System Terminal Block Release Screws Maximum Torque = 0.7 to 0.9 Nm (6 to 8 in-lb.) The following terms are used throughout this section. Familiarize yourself with them before proceeding further into the section. Calculating Heat Watts per point - maximum heat dissipation that can occur in each field wiring point when energized.

  • Page 127: Calculating The Power Supply Loading

    Refer to Example - Worksheet for Calculating Heat Dissipation on page B-40. This worksheet shows you how to calculate the heat dissipation for the example 1747-ACN15/-ACNR15 system on Page B-39. Once you feel comfortable with the layout of the worksheet, go to the worksheet on Page B-41 and fill it out for your control system.
  • Page 128 B-36 Understanding Your SLC 500/1746 Control System Table B.6 Output Module Heat Dissipation 1746-OB16 0.388 1.400 7.60 1746-OB16E 0.150 0.675 3.07 1746-OBP8 0.300 0.675 3.08 1746-OBP16 0.310 1.250 6.26 1746-OG16 0.033 0.900 1.50 1746-OV8 0.775 0.675 6.90 1746-OV16 0.388 1.400 7.60 1746-OVP16 0.310...
  • Page 129 1746-NT4 Not Applicable consult factory 1747-KE Not Applicable 3.750 3.800 Table B.9 Adapter Module Heat Dissipation Catalog Numbers Watts per Point Minimum Total Watts Watts 1747-ASB Not Applicable 1.875 1.875 1747-ACN15 Not Applicable consult factory 1747-ACNR15 consult factory Publication 1747-UM003A-EN-P...

  • Page 130: Determining The Power Supply Dissipation

    B-38 Understanding Your SLC 500/1746 Control System Determining the Power Supply Dissipation Use the graphs below for determining the power supply dissipation in step 2 of the worksheet. 1746-P1 Power Supply Change in Power 1746-P2 Power Supply Change in Power Dissipation due to Output Loading Dissipation due to Output Loading Power Supply Loading (Watts)
  • Page 131 Understanding Your SLC 500/1746 Control System B-39 Heat Dissipation Calculation Example If your controller consists of the following hardware components, calculate heat dissipation as shown in the worksheet on Page B-41. Chassis 1 Chassis 2 DTAM Peripheral Device Slot Slot User Power to Peripheral The following table details the total watts dissipated by the modules and peripheral devices in the above SLC 500 controller.
  • Page 132 B-40 Understanding Your SLC 500/1746 Control System Example - Worksheet for Calculating Heat Dissipation Procedure: Chassis 1 Chassis 2 Chassis 3 1. Calculate the heat dissipation for each chassis without the power supply A. Write in the watts (calculated watts or total watts) dissipated by the processor, I/O and specialty modules, and any peripheral devices attached to the processor.
  • Page 133 Understanding Your SLC 500/1746 Control System B-41 Worksheet for Calculating Heat Dissipation Procedure: Chassis 1 Chassis 2 Chassis 3 1. Calculate the heat dissipation for each chassis without the power supply A. Write in the watts (calculated watts or total watts) dissipated by the processor, I/O and specialty modules, and any peripheral devices attached to the processor.
  • Page 134 B-42 Understanding Your SLC 500/1746 Control System Publication 1747-UM003A-EN-P...
  • Page 135 NUT - Network update time - the repetitive time interval in which data can be sent on the ControlNet link. Processor - A term used to mean an Allen-Bradley programmable controller. Redundant media - Using dual cables to receive the best signal over a network.
  • Page 136 Glossary Segment - Trunkline sections connected via taps with terminators at each end; a segment does not include repeaters. Tap - A component that connects products to the ControlNet trunkline cable. A tap is required for each node and for both sides of each repeater. Terminator - A 75-ohm resistor (mounted in a BNC plug) placed on the ends of segments to prevent reflections from occurring at the ends of cables.
  • Page 137 B-32 components wiring I/O devices B-31 hardware 1-1 installing the module 2-3 connectors ControlNet 1-3 contacting Allen-Bradley for assistance P-2 contactors (bulletin 100), surge suppressors for B-19 manuals, related P-1 ControlNet I/O module switches features 3-6 setting 2-2...
  • Page 138 2-4 terminology G-1 scheduled datatransfer operations 3-6 troubleshooting selecting a 1746 power supply contacting Allen-Bradley for assistance P-2 worksheet B-5 troubleshooting indicators 5-1 SLC 500 system installation B-6 emergency-stop switches B-13 grounding guidelines B-9 master control relay B-11...
  • Page 140 Back Cover Publication 1747-UM003A-EN-P - July 2000 Supersedes Publication 1764-6.1 - February 1999 and 1764-6.1-DU1 - September 1999 © 2000 Rockwell International Corporation. Printed in the U.S.A.

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