OVERVIEW

Official designation: Allen-Bradley 1791-IOBW (Block I/O, Block I/O Module)

Role/Application: This 24V DC block I/O module provides high-density, sixty-four point discrete I/O for Remote I/O architectures. It includes 32 sinking inputs and 32 sourcing outputs.

KEY SPECS SUMMARY

Power: 24V DC nominal, 18 to 26.4V DC external

Interfaces / Ports: Remote I/O network, non-removable terminal block

Indicators: Status LEDs for power, communication, and I/O status

Operating Temp: Refer to the latest manufacturer manual.

Platform / Compatibility: PLC-2, PLC-3, PLC-5, and SLC-500 controllers

Limit: Maximum power dissipation is 15.1 Watts

Lifecycle: Discontinued/Obsolete

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the maximum current draw for the external 24V DC power supply?

A: The external power current is 100mA at 24V DC with an initial surge of 2.0A for 10ms.

Wiring & Installation:

Q: What is the maximum wire size recommended for connecting to the terminal block?

A: Use a maximum of size 14 American Wire Gauge stranded wiring.

Troubleshooting & Compatibility:

Q: What are the compatible controller platforms for the 1791-IOBW module?

A: It is compatible with Allen-Bradley PLC-2, PLC-3, PLC-5, and SLC-500 programmable controllers.

Replacement & Upgrades:

Q: What is the current lifecycle status of the 1791-IOBW module?

A: The 1791-IOBW Block I/O module is classified as Discontinued or Obsolete.