Product Overview
The Allen-Bradley 1769-ARM is an Address Reserve Module designed for the CompactLogix and MicroLogix 1500 controller platforms. It simplifies future system modifications by reserving a single module slot with an inhibited configuration, so you can add or replace modules without stopping the process or re-downloading hardware definitions. This module is a practical solution for system designers who need flexibility and minimal downtime during expansions.
The 1769-ARM draws only 60 mA at 5.1V from the backplane and dissipates a maximum of 0.3W of heat, making it an energy-efficient choice for control panels. It has a power supply distance rating of 8, allowing it to be placed up to eight slots away from the power supply, offering layout flexibility. The module is housed in an open enclosure and can be mounted on a DIN rail or directly to a panel.
Key Specifications
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Manufacturer: Rockwell Automation
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Brand: Allen-Bradley
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Part Number: 1769-ARM
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Product Line: CompactLogix
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Module Type: Address Reserve Module
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Backplane Current: 60 mA at 5.1V
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Heat Dissipation: 0.3W maximum
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Power Supply Distance Rating: 8 modules
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Isolation Voltage: 30 Volts continuous
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Enclosure: Open
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Operating Temperature: 32-140°F (0-60°C)
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Storage Temperature: -40 to 185°F (-40 to 85°C)
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Relative Humidity: 5-95% non-condensing
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Vibration: 5g peak-to-peak at 10-500 Hz
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Shock (panel-mounted): 30G operating, 40G non-operating
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Shock (DIN-rail-mounted): 20G operating, 30G non-operating
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Dimensions: 118 x 35 x 87 mm (4.65 x 1.38 x 3.43 in.)
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Height with mounting tabs: 138 mm (5.43 in.)
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Weight: approx. 0.62 lb (0.28 kg)
Performance and Reliability
The 1769-ARM is engineered for robust operation in industrial environments. It carries c-UL-us certification for UL Listed Industrial Control Equipment (US and Canada) and is also UL Listed for Class I, Division 2 Group A, B, C, D hazardous locations. It complies with CE standards including EN 61000-6-2 (industrial immunity) and EN 61000-6-4 (industrial emissions), as well as RCM and EAC certifications. These certifications ensure the module meets stringent safety and electromagnetic compatibility requirements.
Installation and Setup
Mount the 1769-ARM in any available slot on the CompactLogix backplane. The module uses the standard mechanical locking mechanism to secure it to the backplane. You can mount it on a DIN rail or directly to a panel. Ensure the enclosure provides adequate protection against environmental factors such as dust, moisture, and temperature extremes. For optimal shock and vibration resistance, direct panel mounting is recommended over DIN rail mounting.
Once installed, the module reserves the slot with an inhibited configuration. To activate the slot, insert the desired module and deactivate the inhibition in your control program. This allows for future module additions or replacements without requiring a full hardware reconfiguration.
Maintenance and Longevity
The 1769-ARM requires minimal maintenance due to its simple design. Periodically inspect the module for dust accumulation and ensure the enclosure remains within the specified temperature and humidity ranges. The storage environment should be maintained between -40°C and 85°C with relative humidity below 95% non-condensing. Following these guidelines will help extend the service life of the module and maintain system reliability.
Compatibility and Integration
The Allen-Bradley 1769-ARM is compatible with CompactLogix controllers and MicroLogix 1500 controllers. It works with a variety of CompactLogix power supplies, including 1769-PA2, 1769-PB2, 1769-PA4, and 1769-PB4. The module has a 1-word input data file and no output or configuration data files, so it integrates seamlessly into existing I/O configurations.
Selection Guide
Before purchasing, verify that the 1769-ARM is compatible with your controller model and that your power supply can support the backplane current draw. PLC Source PRO offers this module and other genuine Allen-Bradley spare parts, ensuring you get reliable components for your automation system.