1771-A3B1 PLC-5 I/O Rack 5V DC Backplane Assembly

1771-A3B1 PLC-5 I/O Rack 5V DC Backplane AssemblyProduct Overview The Allen Bradley 1771 A3B1 functions as a high capacity structural backbone for the PLC 5 platform. This 12 slot universal I O chassis houses and powers a diverse range of 1771 series modules, including digital, analog, and specialized motion control units. It provides the essential high speed communication link between the processor and distributed field devices, supporting large scale automation architectures that require high

This Ethernet Network Interface Unit (NIU) enables a central CPU to manage remote I/O modules over a 10/100Mbaud network

Parameter Details Manufacturer Allen Bradley (Rockwell Automation) Model Number 1794-TB3 Product Line Flex I/O Termination Type Cage-Clamp (3-Wire) FLEXBus Voltage/Current 5V DC

What is the significance of the target material (AISI 4140)

Network-heavy communication loads remain isolated on the second core

TU810 or TU842 for redundancy) onto the DIN rail before installing the DO840

This module executes plant-wide control strategies

Always verify your specific system firmware version for full addressable feature support

always refer to your specific system topology to ensure the interface matches your I/O module requirements

This design eliminates single points of failure

5-meter prefabricated cable provides the vital link between the FI 820F module and the TB 870F Terminal Block

Legacy Portability: The RS-232 port allows for easy connection to existing serial-based devices and legacy networks

Mounting: Compatible with 3500 series racks