Product Overview
The Allen-Bradley 1734-ARM is an address reserve module within the POINT I/O family, engineered to preserve the addressing and slot numbering schemes of installed I/O modules. This module simplifies system engineering, reduces inventory costs, and streamlines control system design by maintaining address continuity even before a physical I/O module is inserted.
With a compact form factor and flexible installation options, the 1734-ARM fits seamlessly into existing POINT I/O systems. It does not require a designated key switch position, allowing placement in any slot with any key position. The module saves a node address for later insertion, making it an ideal solution for staged expansions or maintenance scenarios.
Technical Specifications
The Allen-Bradley 1734-ARM operates with a POINTBus current of 75 milliamps and dissipates 0.375 Watts of thermal energy. Its maximum power dissipation reaches 1.3 BTU/hour at 5 Volts DC. These low power requirements ensure minimal heat generation, contributing to system reliability.
| Parameter |
Value |
| Manufacturer |
Rockwell Automation |
| Brand |
Allen-Bradley |
| Part Number / Catalog No. |
1734-ARM |
| Series |
POINT I/O |
| Module Type |
ARM Module (Address Reserve Module) |
| POINTBus Current |
75 milliamps |
| Thermal Dissipation |
0.375 Watts |
| Power Dissipation, Max |
1.3 BTU/hour |
Key Features & Benefits
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Address Preservation: The 1734-ARM reserves slot addresses and numbering schemes, maintaining continuity for non-parameterized signal modules.
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Flexible Installation: No key switch requirement allows installation in any slot with any key position, simplifying system layout.
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Low Power Consumption: With a POINTBus current of 75 mA and thermal dissipation of 0.375 W, the module minimizes energy use and heat output.
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Status Indicators: Green/red logic side status indicators for network and module provide quick visual diagnostics.
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Wide Operating Range: Operates reliably between -20 and 55 degrees Celsius (-4 to 131 degrees Fahrenheit) with relative humidity up to 95% noncondensing.
Industry Applications
The Allen-Bradley 1734-ARM is commonly used in manufacturing plants, process control systems, and material handling operations where I/O configurations evolve over time. For example, in a bottling plant, the 1734-ARM can reserve slots for future analog input modules, allowing engineers to pre-configure the control system without waiting for hardware delivery.
In automated warehousing, the module helps maintain consistent addressing when swapping out I/O cards during maintenance, reducing downtime and programming errors. Its ability to save node addresses makes it invaluable for systems that undergo frequent reconfiguration.
Installation & Setup Guidance
Installing the 1734-ARM is straightforward. The module can be mounted before or after the base, but ensure the DIN rail mounting base is keyed accurately. The module requires a 1734-TB or 1734-TBS wiring base assembly. Since the 1734-ARM does not communicate I/O data without configuration, it serves purely as an address placeholder.
Follow these steps for proper setup:
- Mount the wiring base on the DIN rail, verifying correct keying.
- Insert the 1734-ARM into the base until it locks firmly.
- Connect the POINTBus communication cable to the adjacent modules.
- Verify status indicators show proper network and module health.
Maintenance & Reliability
The 1734-ARM requires minimal maintenance due to its solid-state design. However, periodic inspections are recommended to ensure the module is seated correctly and the wiring base contacts are clean. Operating within the specified temperature and humidity ranges ensures long-term reliability. Since the module has no moving parts, its primary failure mode is environmental stress, so keep enclosures well-ventilated and protect from condensation.
Compatibility & Integration
The 1734-ARM integrates seamlessly with the POINT I/O family, including digital and analog modules from Allen-Bradley. It works with any Allen-Bradley 1734-ARM-compatible POINT I/O system, requiring a 1734-TB or 1734-TBS wiring base. The module does not require configuration software and functions as a passive address reserve, making it compatible with existing control networks without additional setup.
Buying Guide
When purchasing the Allen-Bradley 1734-ARM, verify the part number and ensure it matches your system's requirements. Check that you have the correct wiring base (1734-TB or 1734-TBS) and that your DIN rail is properly keyed. PLC Source PRO offers genuine 1734-ARM modules with fast shipping and competitive pricing. Contact our team for bulk pricing or technical assistance.