1791-16B0 | Allen-Bradley Block I/O Input Module, 24V DC, 16 Inputs
1791-16B0 | Allen-Bradley Block I/O Input Module, 24V DC, 16 Inputs
1791-16B0 | Allen-Bradley Block I/O Input Module, 24V DC, 16 Inputs
    1791-16B0 | Allen-Bradley Block I/O Input Module, 24V DC, 16 Inputs
1791-16B0 | Allen-Bradley Block I/O Input Module, 24V DC, 16 Inputs

1791-16B0 | Allen-Bradley Block I/O Input Module, 24V DC, 16 Inputs

Part #: 1791-16B0 Manufactured by: Allen-Bradley
Regular price
$574.00
Sale price
$574.00
Regular price
5 in Stock
Condition: New-Surplus Original Box
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Product Overview
The 1791-16B0 is a 16-point DC Block I/O module with 24 VDC inputs and removable wiring terminals. The unit provides relia...  Read more
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Product Description P/N: 1791-16B0

Description / Specifications

Description 

The Allen-Bradley 1791-16B0 is a DC-powered block I/O module from the 1791 series, providing 16 input channels. It is designed to operate with a 24 VDC power supply and supports integration with multiple types of industrial switches.

 

 

Technical Specifications 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1791-16B0
Voltage 24V dc
Inputs per Block 16
Series B

  

 

Information About 1791-16B0

The 1791-16B0 is part of the Allen-Bradley 1791 Block I/O family, developed for distributed I/O applications with compact and reliable design. This 16-point module accepts 24 VDC inputs and features a maximum input impedance of 3.4 kΩ, ensuring compatibility with standard industrial devices. It can be connected to a variety of input devices including pushbutton, selector, float, limit, and proximity switches, making it versatile for different automation setups. The module integrates with Allen-Bradley PLC systems such as PLC-2, PLC-3, PLC-5/250, PLC-5, and SLC controllers, providing seamless data exchange. It includes a removable terminal strip for simplified wiring, internal protection for safe operation, and front-panel switch assemblies for configuration of last state, chassis, and I/O rack settings. Additionally, built-in status indicators support easy monitoring and troubleshooting.

Key Features:

  • Input Channels: Provides 16 dedicated DC input channels, allowing simultaneous connection of multiple field devices in one compact module.
  • Voltage Rating: Operates at 24 VDC, optimized for compatibility with common industrial sensors and switches.
  • Input Impedance: Maximum input impedance of 3.4 kΩ ensures stable signal transmission and minimizes load on input devices.
  • Device Compatibility: Works seamlessly with pushbutton switches, selector switches, float switches, limit switches, and proximity sensors, offering flexibility in system design.
  • PLC Integration: Fully compatible with Allen-Bradley PLC-2, PLC-3, PLC-5/250, PLC-5, and SLC controllers, ensuring smooth integration in existing automation networks.
  • Wiring Design: Features a removable terminal strip with captive screws, allowing fast installation, easy re-wiring, and reduced downtime during maintenance.
  • Configuration Options: Equipped with switch assemblies under the front cover for setting I/O rack number, last state, and chassis address to match system requirements.
  • Status Indicators: Built-in LED status indicators provide real-time feedback on input activity and module health for simplified troubleshooting.

The 1791-16B0 delivers the connectivity, flexibility, and durability required for distributed I/O integration across a wide range of industrial automation systems.


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 1791-16B0
Question: What is the Allen-Bradley 1791-16B0 used for?
Date Update:28/05/2025
Answer:

The 1791-16B0 is a 16-point DC Block I/O module that provides digital input capabilities for industrial automation systems. It converts incoming 24V DC signals into logic-level signals that can be processed by compatible PLCs. The module is ideal for reading the status of devices like limit switches, pushbuttons, and proximity sensors in a distributed control environment.

Question: How many inputs are available on the 1791-16B0?
Date Update:28/05/2025
Answer:

The 1791-16B0 features 16 digital DC inputs. These inputs allow the module to monitor the status of up to 16 discrete devices simultaneously. Each input point operates independently and can be configured within the controller logic.

Question: Which controllers are compatible with the 1791-16B0?
Date Update:28/05/2025
Answer:

This module supports multiple Allen-Bradley platforms, including PLC-2, PLC-3, PLC-5/250, PLC-5, and SLC controllers. Its flexibility makes it suitable for integration into both legacy and mid-range automation systems. Compatibility should still be confirmed with current firmware and system requirements.

Question: What is the input impedance of this module?
Date Update:28/05/2025
Answer:

The maximum input impedance of the 1791-16B0 is 3.4K Ohms. This affects the current draw from input devices and helps determine compatibility. Always ensure that the connected devices can properly drive the input under this load.

Question: Is the 1791-16B0 still in production?
Date Update:28/05/2025
Answer:

As of now, the 1791-16B0 is an older Block I/O module and may have limited availability. It is advisable to verify its production status with Rockwell Automation or authorized distributors. For new installations, more recent Flex I/O or Compact I/O solutions may be recommended.

IQElectro is not an authorized distributor.
IQElectro 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 1791-16B0 is a DC-powered block I/O module from the 1791 series, providing 16 input channels. It is designed to operate with a 24 VDC power supply and supports integration with multiple types of industrial switches.

 

 

Technical Specifications 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1791-16B0
Voltage 24V dc
Inputs per Block 16
Series B

  

 

Information About 1791-16B0

The 1791-16B0 is part of the Allen-Bradley 1791 Block I/O family, developed for distributed I/O applications with compact and reliable design. This 16-point module accepts 24 VDC inputs and features a maximum input impedance of 3.4 kΩ, ensuring compatibility with standard industrial devices. It can be connected to a variety of input devices including pushbutton, selector, float, limit, and proximity switches, making it versatile for different automation setups. The module integrates with Allen-Bradley PLC systems such as PLC-2, PLC-3, PLC-5/250, PLC-5, and SLC controllers, providing seamless data exchange. It includes a removable terminal strip for simplified wiring, internal protection for safe operation, and front-panel switch assemblies for configuration of last state, chassis, and I/O rack settings. Additionally, built-in status indicators support easy monitoring and troubleshooting.

Key Features:

  • Input Channels: Provides 16 dedicated DC input channels, allowing simultaneous connection of multiple field devices in one compact module.
  • Voltage Rating: Operates at 24 VDC, optimized for compatibility with common industrial sensors and switches.
  • Input Impedance: Maximum input impedance of 3.4 kΩ ensures stable signal transmission and minimizes load on input devices.
  • Device Compatibility: Works seamlessly with pushbutton switches, selector switches, float switches, limit switches, and proximity sensors, offering flexibility in system design.
  • PLC Integration: Fully compatible with Allen-Bradley PLC-2, PLC-3, PLC-5/250, PLC-5, and SLC controllers, ensuring smooth integration in existing automation networks.
  • Wiring Design: Features a removable terminal strip with captive screws, allowing fast installation, easy re-wiring, and reduced downtime during maintenance.
  • Configuration Options: Equipped with switch assemblies under the front cover for setting I/O rack number, last state, and chassis address to match system requirements.
  • Status Indicators: Built-in LED status indicators provide real-time feedback on input activity and module health for simplified troubleshooting.

The 1791-16B0 delivers the connectivity, flexibility, and durability required for distributed I/O integration across a wide range of industrial automation systems.


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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