1747-ASB Allen-Bradley SLC 500 Universal Remote I/O Adapter Module
1747-ASB Allen-Bradley SLC 500 Universal Remote I/O Adapter Module
1747-ASB Allen-Bradley SLC 500 Universal Remote I/O Adapter Module
    1747-ASB Allen-Bradley SLC 500 Universal Remote I/O Adapter Module
1747-ASB Allen-Bradley SLC 500 Universal Remote I/O Adapter Module

1747-ASB Allen-Bradley SLC 500 Universal Remote I/O Adapter Module

Part #: 1747-ASB Manufactured by: Allen-Bradley
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The Allen-Bradley 1747-ASB is a SLC 500 I/O Adapter Module. This I/O Adapter Module has a Universal Remote I/O Adapter Com...  Read more
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Product Description P/N: 1747-ASB

Description / Specifications

Description 

The Allen-Bradley 1747-ASB is a SLC 500 I/O Adapter Module. This I/O Adapter Module has a Universal Remote I/O Adapter Communication Port and which supports Communication Rate of 57.6, 115 or 230 kilobits/second.

 

Technical Specifications 

 

Brand Allen-Bradley
Series SLC 500
Part Number 1747-ASB
Manufacturer Rockwell Automation
Module Type I/O Adapter Module
Communication Port Universal Remote I/O Adapter
Communication Rate 57.6, 115 or 230 kilobits/second
Backplane Current (5 Volts DC) 375 milliamps
Cable Belden 9463
Slot Width 1
No. of slots 30
No. of Node 16 Standard; 32 extended
Connectors 6-Pin Phoenix Connector
Operating Temperature 0-60 Celsius
Dimensions 5.72 x 1.37 x 5.15 inches

  

 

Information About 1747-ASB

The Allen-Bradley 1747-ASB is a remote I/O adapter module that is part of the SLC 500 system. It establishes a communication link between SLC or PLC scanners and various 1746 I/O modules via Remote I/O. The Remote I/O link consists of one master device i.e., an SLC or PLC scanner and one or more slave devices that are adapters. The SLC or PLC image table gets I/O module image-mapping directly from its chassis. For image mapping, it supports both discrete and block transfer. The 1747-ASB has support for 1/2-slot, 1-slot, and 2-slot addressing with efficient image utilization. It is installed in the chassis with the SLC 500 processor and it scans I/O in the chassis.

The 1747-ASB module has 375 mA backplane current at 5V and 0 mA at 24V. It has a minimum and maximum thermal dissipation of 1.875 W. It can communicate I/O data over a distance of up to 3040 meters and it supports 57.6K, 115.2K, and 230.4K baud rates. It allows a user-selected image size of up to 32 logical groups and it controls up to 30 chassis slots. The 1747-ASB also provides non-volatile memory and extended node capability to up to 32 adapters. For wiring, the Belden 9463 or similar category cable must be used, and it does not require any user programming. It uses a 6-Pin Phoenix Connector for connection between the Remote I/O link and the processor. The 1747-ASB module supports all SLC 501 I/O modules like basic modules, resistance modules, high-speed counter modules, etc. For troubleshooting and operation, it has three 7-segment displays with enhanced capability for displaying operating status and errors. The 1747-ASB is intended for use in an Industrial environment and provides a NEMA standard noise immunity.

The 1747- ASB is a Remote IO adapter that belongs to the SLC 500 automation platform. This IO adapter communicates with I/O scanner modules, interface cards and gateways to establish Remote IO connectivity.

For PLC applications, the primary purpose of this module is to implement distributed IO application over a Remote I/O network. Compared to an SLC expansion bus, the expansion has limited cable length and a very limited SLC chassis expansion. With a 1747-ASB, up to 32 SLC Chassis with 1747 RIO scanner may be used with applicable distances of 762 meters or 2500 feet for 230.4 KBaud, 1524 meters or 5000 feet for 115.2 KBaud and 3048 meters or 10,000 feet for 57.6 KBaud. Up to 30 is the control capability of this adapter, this 30 slot limit can be segmented to different chassis or rack with each rack installed with a RIO scanner and a power supply.

Aside from communicating with Remote IO scanners, this module may also be used to communicate with Allen-Bradley communication cards that are directly mounted to a personal computer. This enables remote programming and configuration capability and remote control via a Supervisory Control And Data Acquisition (SCADA). Alternatively, Allen-Bradley Human Machine Interfaces (HMI) such as PanelView products are capable of being added with a Remote I/O adapter that allows the HMI to control the process similar to a SCADA system.

This Remote I/O adapter also supports communication with Allen-Bradley encompass partner products and 3rd party gateways and converters for implementing 3rd party communication with other automation products.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1747-ASB
Question: What is the 1747-ASB module?
Date Update:04/06/2025
Answer:

The 1747-ASB is a SLC 500 Data Highway Plus (DH+) Interface Module that allows communication between an SLC 500 processor and remote I/O modules over the DH+ network. It is used to interface the SLC 500 system with remote racks of SLC 500 I/O modules, providing a solution for distributed control applications. The module supports Data Highway Plus (DH+) communication protocol.

Question: How do I wire the 1747-ASB module?
Date Update:04/06/2025
Answer:

To wire the 1747-ASB module, follow these steps:

1. Power Supply: The 1747-ASB requires a 24V DC power supply. Connect the power supply to the module’s 24V DC and Common terminals.

2. DH+ Communication:

  • Use Data Highway Plus (DH+) communication cables to connect the 1747-ASB module to the DH+ network.
  • Connect the DH+ communication port on the 1747-ASB to the Data Highway Plus (DH+) network, which connects to other devices like SLC I/O racks or PLC controllers.

3. Remote I/O Racks: If connecting remote I/O racks, connect the appropriate I/O modules and communication cables to the remote rack and ensure the wiring is configured as specified in the user manual.

4. Grounding: Proper grounding is important. Ensure that the system is properly grounded to avoid electrical interference and ensure safety.

For detailed wiring instructions and diagrams, refer to the user manual for the 1747-ASB module.

Question: What fault codes can appear on the 1747-ASB module?
Date Update:04/06/2025
Answer:

The 1747-ASB module uses status LEDs to indicate its current state. When there is a fault, the LED indicators can display error codes. Here are some common fault codes and their meanings:

1. Fault LED (Red): Indicates a fault condition in the module.

  • Cause: Communication failure or hardware issue.
  • Action: Check the wiring, connections, and ensure the module is powered. If the fault persists, check the SLC 500 processor and other network components for issues.

2. DH+ LED (Amber or Red): Indicates issues with Data Highway Plus communication.

  • Cause: Issues in the DH+ network, such as a disconnected cable, bad terminations, or configuration errors.
  • Action: Check the DH+ wiring, network connections, and ensure proper termination of the DH+ network.

3. OK LED (Green): Indicates the module is operating normally.

  • Action: Ensure the module’s status is OK (green) to confirm normal operation.

For a comprehensive list of fault codes, refer to the user manual for the 1747-ASB, which provides more details on interpreting the fault codes and troubleshooting steps.

Question: How do I troubleshoot communication issues with the 1747-ASB module?
Date Update:04/06/2025
Answer:

To troubleshoot communication issues with the 1747-ASB module:

1. Check Fault LEDs: If the Fault LED is on, there may be a network issue, a wiring problem, or a hardware fault. The DH+ LED can provide more information about communication issues.

  • Green/Amber DH+ LED: Indicates normal communication.
  • Red DH+ LED: Indicates communication failure.

2. Verify Wiring: Ensure the DH+ network wiring is correct and that all terminals are properly connected. Check that terminators are in place at the ends of the DH+ network to avoid communication problems.

3. Verify Network Address: Ensure the SLC 500 processor and 1747-ASB module are assigned the correct network addresses in RSLogix 500.

4. Check Network Load: If the DH+ network is heavily loaded, reduce the number of nodes or improve the network configuration to optimize communication.

5. Test the Connection: Use RSLogix 500 to test the communication status. You can also use RSLinx Classic to verify that the 1747-ASB module is visible on the network.

6. Replace the Module: If hardware failure is suspected, try replacing the 1747-ASB module to see if the issue persists.

Question: How do I program the 1747-ASB module?
Date Update:04/06/2025
Answer:

To program the 1747-ASB module:

  1. Use RSLogix 500 software for the SLC 500 series to configure the module.
  2. Add the 1747-ASB module to the I/O configuration of your SLC processor.
  3. Set the DH+ node address and configure the communication parameters.
  4. Map the remote I/O modules to the appropriate SLC processor slots.
  5. Download the configuration to the SLC processor and test the communication with the remote I/O modules.

Refer to the RSLogix 500 manual for detailed programming instructions for the 1747-ASB.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1747-ASB is a SLC 500 I/O Adapter Module. This I/O Adapter Module has a Universal Remote I/O Adapter Communication Port and which supports Communication Rate of 57.6, 115 or 230 kilobits/second.

 

Technical Specifications 

 

Brand Allen-Bradley
Series SLC 500
Part Number 1747-ASB
Manufacturer Rockwell Automation
Module Type I/O Adapter Module
Communication Port Universal Remote I/O Adapter
Communication Rate 57.6, 115 or 230 kilobits/second
Backplane Current (5 Volts DC) 375 milliamps
Cable Belden 9463
Slot Width 1
No. of slots 30
No. of Node 16 Standard; 32 extended
Connectors 6-Pin Phoenix Connector
Operating Temperature 0-60 Celsius
Dimensions 5.72 x 1.37 x 5.15 inches

  

 

Information About 1747-ASB

The Allen-Bradley 1747-ASB is a remote I/O adapter module that is part of the SLC 500 system. It establishes a communication link between SLC or PLC scanners and various 1746 I/O modules via Remote I/O. The Remote I/O link consists of one master device i.e., an SLC or PLC scanner and one or more slave devices that are adapters. The SLC or PLC image table gets I/O module image-mapping directly from its chassis. For image mapping, it supports both discrete and block transfer. The 1747-ASB has support for 1/2-slot, 1-slot, and 2-slot addressing with efficient image utilization. It is installed in the chassis with the SLC 500 processor and it scans I/O in the chassis.

The 1747-ASB module has 375 mA backplane current at 5V and 0 mA at 24V. It has a minimum and maximum thermal dissipation of 1.875 W. It can communicate I/O data over a distance of up to 3040 meters and it supports 57.6K, 115.2K, and 230.4K baud rates. It allows a user-selected image size of up to 32 logical groups and it controls up to 30 chassis slots. The 1747-ASB also provides non-volatile memory and extended node capability to up to 32 adapters. For wiring, the Belden 9463 or similar category cable must be used, and it does not require any user programming. It uses a 6-Pin Phoenix Connector for connection between the Remote I/O link and the processor. The 1747-ASB module supports all SLC 501 I/O modules like basic modules, resistance modules, high-speed counter modules, etc. For troubleshooting and operation, it has three 7-segment displays with enhanced capability for displaying operating status and errors. The 1747-ASB is intended for use in an Industrial environment and provides a NEMA standard noise immunity.

The 1747- ASB is a Remote IO adapter that belongs to the SLC 500 automation platform. This IO adapter communicates with I/O scanner modules, interface cards and gateways to establish Remote IO connectivity.

For PLC applications, the primary purpose of this module is to implement distributed IO application over a Remote I/O network. Compared to an SLC expansion bus, the expansion has limited cable length and a very limited SLC chassis expansion. With a 1747-ASB, up to 32 SLC Chassis with 1747 RIO scanner may be used with applicable distances of 762 meters or 2500 feet for 230.4 KBaud, 1524 meters or 5000 feet for 115.2 KBaud and 3048 meters or 10,000 feet for 57.6 KBaud. Up to 30 is the control capability of this adapter, this 30 slot limit can be segmented to different chassis or rack with each rack installed with a RIO scanner and a power supply.

Aside from communicating with Remote IO scanners, this module may also be used to communicate with Allen-Bradley communication cards that are directly mounted to a personal computer. This enables remote programming and configuration capability and remote control via a Supervisory Control And Data Acquisition (SCADA). Alternatively, Allen-Bradley Human Machine Interfaces (HMI) such as PanelView products are capable of being added with a Remote I/O adapter that allows the HMI to control the process similar to a SCADA system.

This Remote I/O adapter also supports communication with Allen-Bradley encompass partner products and 3rd party gateways and converters for implementing 3rd party communication with other automation products.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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