OVERVIEW

Official designation: Allen-Bradley 1791-16B0 (Block I/O, Input Module)

Role/Application: This 24V DC Block I/O module integrates the functions of an I/O rack, adapter, and power supply for efficient signal interfacing in Remote I/O distributed systems.

KEY SPECS SUMMARY

Power: 24V DC nominal, 19.2 to 30V DC external range

Interfaces / Ports: Remote I/O link, removable terminal strip for I/O

Indicators: Sixteen Input Status LEDs, one Communication LED, one Status LED

Operating Temp: Refer to the latest manufacturer manual.

Platform / Compatibility: PLC-2, PLC-3, PLC-5, and SLC 5/02 controllers

Limit: Maximum input impedance is 3.4 kOhm

Lifecycle: Discontinued/Obsolete

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the normal on-state current and voltage range for the module inputs?

A: The on-state voltage range is 10 to 30V DC with a maximum current draw of 25 mA.

Wiring & Installation:

Q: How is the 1791-16B0 block module physically connected to the controller network?

A: A Remote I/O cable is required for connection to the programmable controller link.

Troubleshooting & Compatibility:

Q: Which hardware settings can be configured using the switches located on the module?

A: Switches are used to set the last state, last chassis, I/O rack number, and filter speed.

Replacement & Upgrades:

Q: What is the manufacturer lifecycle status for the Allen-Bradley 1791-16B0 module?

A: The 1791-16B0 module has been Discontinued by the manufacturer.