Overview
The Allen-Bradley 1734-ARM is a passive address reserve module designed for the POINT I/O distributed I/O platform. It reserves a slot address within a POINT I/O assembly to maintain consistent logical addressing when modules are temporarily removed or not yet installed. This module is essential for staged I/O expansion and system commissioning scenarios where future I/O points must be accommodated without reconfiguring existing address maps.
Key Features
- Passive design with no power consumption or signal processing requirements
- Prevents address shifting when I/O modules are removed or replaced
- Supports Removal and Insertion Under Power (RIUP) for hot-swap operations
- Compatible with all standard 1734 POINT I/O terminal bases and adapters
- DIN rail mounted with open-style enclosure for flexible installation orientations
- Matches standard 1734 module form factor and footprint
Technical Specifications
The 1734-ARM module delivers minimal thermal impact and maintains compatibility across all POINT I/O configurations:
- Module Type: Address Reserve Module (ARM)
- POINTBus Current Draw: 75 mA (low backplane load)
- Power Dissipation: 0.375 W maximum
- Thermal Output: 1.3 BTU/hour at 5 VDC
- Installation: Any slot position within standard 1734 terminal base
- Mounting: Horizontal or vertical without de-rating
Typical Applications
- Phased Panel Commissioning: Reserve slots during initial system build when final I/O configuration is not finalized
- Future-Ready Designs: Plan for I/O expansion without requiring panel re-engineering or address remapping
- Staged Machine Deployment: Add capabilities incrementally as production demands increase
- Hot-Swap Operations: Enable module replacement or upgrade during runtime using RIUP capability
- Distributed Systems: Maintain consistent node addressing across remote I/O racks in networked applications
Compatibility & Replacements
The 1734-ARM works seamlessly with the complete 1734 POINT I/O product family, including all digital input/output modules, analog modules, and safety-rated POINT Guard I/O variants. It installs into any standard 1734 terminal base and is compatible with all CompactLogix and ControlLogix systems using POINT I/O networks. No firmware updates or additional configuration is required—simply insert the module into the reserved slot position and the address space is automatically maintained. The module meets UL, CE, C-TICK, CUL, GOST, and KC standards for global industrial deployment.
