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Allen-Bradley 1440-RMA00-04RC XM Monitoring Modules

The Allen-Bradley 1440-RMA00-04RC, also cataloged as the 1440-RMA00-04RC Measurement Module, operates as a dedicated hardware component for industrial machinery monitoring within XM Monitoring Modules networks.

Hardware Specifications

Parameter Specification
Model 1440-RMA00-04RC (XM-440)
Brand Allen-Bradley
Origin United States
Weight 0.18 kg (0.51 lbs)
Dimensions 9.3 cm x 7.6 cm x 4.8 cm (3.8 in x 3.7 in x 3.7 in with base)
Operating Temp -20 to 65 deg C
Power Consumption 24 VDC, 120 mA, 3.4 W
Relay Outputs 4 relays (expandable to 12 via XM-441 expansion modules)
Relay Operation Remote, shared, and voted relay operation
Indicators Module (red/green), Network (red/green), Relay 1-4 (red)
Communication Protocol DeviceNet
DeviceNet Baud Rates 125, 250, or 500 Kbps (auto-set by bus master)
Serial Interface RS-232 via mini-connector or terminal base
Serial Baud Rate Fixed at 19.2 Kbps
Configuration Local configuration via XM Serial Configuration Utility
Mounting Style Terminal Base (DIN-rail or panel mount)

Industrial Control & Drive Integration

The 1440-RMA00-04RC implements dedicated logic processing matching the backplane bus communication velocity metrics required for deterministic network coordination. Designed to integrate directly with internal DeviceNet infrastructures, the module supports specific I/O density scaling routines by functioning as a bus master for auxiliary distributed XM measurement devices. To prevent data transmission mismatch, the controller demands strict firmware flash compatibility across all interconnected processing components to manage explicit parameters and voted logic states.

Frequently Asked Questions

Q: Does the 1440-RMA00-04RC draw its primary operating power from the DeviceNet network cable?

A: No. The hardware utilizes independent module power via a dedicated 24 VDC connection on the terminal base unit. The DeviceNet network link is electrically isolated and used strictly for data transmission, not for driving internal circuit logic or relay coils.

Q: How is the DeviceNet baud rate configured on the module?

A: The module does not use hardware switches for network speed configuration. The DeviceNet baud rate is auto-set by the designated bus master or established via the RS-232 serial connection using the local XM Serial Configuration Utility during initial commissioning.

Field Installation Guidelines

  • Terminal Base Insertion: Mount the module firmly into its corresponding terminal base unit. Ensure the mechanical alignment keys fit properly before locking the assembly onto the DIN-rail or mounting panel.
  • Relay Output and Power Wiring: Terminate all 24 VDC power connections and relay contact outputs to the specified terminals on the base. Route signal lines away from high-voltage AC cables to limit noise injection.
  • Shield Grounding Practice: Connect the cable shields to a dedicated, low-impedance functional earth grounding point on the terminal base block. Proper termination is necessary to eliminate transient interference on the RS-232 and DeviceNet communication lines.

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