Product Description

The 51303932-476 (MC-TSIM12) is a high-reliability Serial Device Interface (SI) Field Termination Assembly designed for the Honeywell TDC 3000 and Experion PKS control systems. This specific module facilitates asynchronous serial communication between the DCS and third-party devices, such as programmable logic controllers (PLCs), motor control centers, or analytical instruments that utilize the Modbus RTU protocol.

Engineered for longevity in challenging industrial climates, the 51303932-476 is both CE Compliant and Conformal Coated. The conformal coating provides a specialized polymeric film that shields the printed circuit board from moisture, thermal shock, vibration, and corrosive contaminants. This single-channel FTA supports both EIA-232 and EIA-485/422 physical interfaces, with the specific communication parameters pre-configured in the factory-programmed plug-in firmware module.

Technical Specifications

• Model Number: MC-TSIM12

• Part Number: 51303932-476

• Protocol Support: Modbus RTU (Asynchronous Serial)

• Interface Types: Selectable EIA-232 (RS-232) or EIA-422/485 (RS-422/RS-485)

• Channel Configuration: Single (1) Channel

• Redundancy: Non-redundant configuration

• Physical Connectors: * Primary Interface: DB-25 type connector (J2)

• Field Wiring: Compression-type terminals

• Compliance: CE Compliant (Meets EU health, safety, and environmental standards)

• Environmental Protection: Conformal Coated (CC) for moisture and chemical resistance

• EIA-232 Cable Limit: Maximum 15 meters (50 feet)

• Form Factor: Size A — 6 inches (152 mm)

• Firmware: Factory-preprogrammed plug-in module tailored to the associated IOP

• Mounting: Standard FTA mounting base compatible

Application Scenarios

The 51303932-476 is essential for integrating non-Honeywell hardware into the Ovation or Experion environment, including:

• Power Metering: Collecting real-time electrical data from Modbus-enabled power monitors.

• Variable Frequency Drives (VFDs): Controlling motor speeds and monitoring drive diagnostics.

• Flow Computers: Importing high-accuracy custody transfer data into the DCS database.

• Legacy PLC Integration: Bridging data from standalone Modbus serial controllers.