Configured for FOUNDATION Fieldbus protocol communication in ProcessLogix systems, the Allen-Bradley 1757-FIM, also cataloged as the 1757FIM Fieldbus Interface Module, provides direct physical-layer execution across industrial automation networks.

Model Identification Matrix

• Catalog Number: 1757-FIM
• Spare Catalog Number: 1757FIM
• Hardware Architecture: ControlLogix Platform / ProcessLogix
• Communication Protocol: H1 FOUNDATION Fieldbus (31.25 Kbit/s)

Hardware Specifications

Network Connectivity and Industrial Automation Integration

The module acts as a dedicated communication processor designed to handle deterministic networks and I/O density scaling within automation architectures. It executes backplane bus communication velocity frameworks while interfacing with H1 FOUNDATION Fieldbus field devices. The hardware maintains firmware flash compatibility to support system upgrade paths, minimizing downtime during operational lifecycle changes.

Bill of Materials and Ordering Deliverables

• 1 x Allen-Bradley 1757-FIM Fieldbus Interface Module hardware unit
• 1 x Protective terminal block cover
• 1 x Technical documentation sheet and compliance insert

Physical Installation and Wiring Guidelines

• Enclosure Mounting: Mount the module securely onto standard DIN rails or designated ControlLogix chassis slots, ensuring proper alignment with the backplane connectors.
• Shielding and Grounding: Terminate the fieldbus cable shield to a low-impedance earth ground at the control cabinet entry point to suppress electromagnetic interference.
• Power Supply Routing: Keep 24 VDC power supply wiring physically separated from high-voltage AC lines and high-frequency motor drive cables to prevent signal distortion.

Frequently Asked Questions

• What is the baud rate supported by the 1757-FIM module?

  The module communicates on the H1 FOUNDATION Fieldbus network at a fixed transmission speed of 31.25 Kbit/s.

• Can the 1757-FIM module be inserted or removed under power?

  Hot-swap limitations apply depending on the specific ControlLogix chassis and backplane power configuration; verify system state before extraction.

• What is the operating voltage range for the power supply input?

  The unit requires a nominal supply power of 24 VDC with an allowable tolerance of plus or minus 20 percent.

• What environmental vibration limits are specified for this module?

  The hardware is rated to withstand vibration levels up to 5 G across a frequency range of 10 to 500 Hz.

• Is the module suitable for condensing humidity environments?

  No, the operational relative humidity must remain between 5 and 95 percent under noncondensing conditions.

• Where is the country of origin for the 1757-FIM?

  The hardware is manufactured in the United States of America, with shipment originating from Xiamen, China.

• What is the exact physical weight of the interface module?

  The module weighs 0.26 kg, excluding outer packaging materials and shipping cartons.

• What primary system platform is this hardware designed for?

  It is engineered specifically for integration within Allen-Bradley ControlLogix and ProcessLogix infrastructure networks.