1734-ARM Allen-Bradley Address Reserve Module POINT Bus

Allen-Bradley 1734-ARM Technical Overview

The Allen-Bradley 1734-ARM is an Address Reserve Module (ARM) designed for the POINT I/O system architecture by Rockwell Automation. Weighing approximately 0.10 kg (0.22 lbs), this module reserves slot locations and node addresses within a POINT I/O backplane, allowing system engineering to maintain established I/O numbering schemes prior to physical module installation. It consumes 75 mA of POINTBus current, operates with a low thermal dissipation of 0.375 Watts (1.3 BTU/hr max), and integrates dual green/red status indicators for real-time network and module diagnostics.

Part Number Breakdown

• 1734: Allen-Bradley POINT I/O Distributed Architecture Series
• ARM: Address Reserve Module Functional Designation

Technical Specifications Table

Key Features & System Integration

The 1734-ARM simplifies control architecture planning by occupying a slot and preserving its network node address without actively processing I/O data. Weighing approximately 0.10 kg, it mounts directly onto standard 1734-TB or 1734-TBS wiring bases. Because it lacks a locked mechanical keying position, it can be inserted into any open slot before or after base mounting, facilitating future expansion and reducing field spare-parts inventory management.

Frequently Asked Questions (FAQs)

Q1: What is the main purpose of the Allen-Bradley 1734-ARM module?
A1: It reserves slot locations and node addresses in a POINT I/O assembly so that the system configuration remains intact before planned I/O modules are installed.

Q2: Does the 1734-ARM transmit active field I/O data back to the controller?
A2: No, it acts strictly as a passive placeholder module and does not communicate active I/O data over the POINTBus.

Q3: Which wiring base assemblies are required for installing the 1734-ARM?
A3: The module requires either a 1734-TB or 1734-TBS terminal base assembly for proper DIN rail alignment.