Honeywell FC-DCOM-232/485 CC V2.1 Communication Interface FTA

The Honeywell FC-DCOM-232/485 CC V2.1 is a Communication Interface Field Termination Assembly (FTA) designed to provide RS232 and RS485/422 communication interfaces for Honeywell control systems. The module supports multiple serial communication standards, wide baud rate ranges, and DIN rail installation, enabling reliable connectivity between control processors and external serial devices.

Technical Specifications

Communication Interface Function

The FC-DCOM-232/485 CC V2.1 acts as a field termination and interface module between Honeywell control processors and serial communication devices. It supports both RS232 and RS485/422 electrical standards, allowing integration with a wide range of industrial equipment and communication networks.

The module receives operating power directly from the connected control processor, eliminating the need for a separate field power supply under normal installation conditions.

RS232 and RS485/422 Support

The RS232 interface complies with EIA/TIA-232 signal levels and supports communication rates up to 250 kBaud. This interface is suitable for point-to-point serial communication with compatible industrial devices.

For higher-speed and longer-distance communication requirements, the module provides an RS485/422 interface compliant with EIA/TIA-485-A standards. Supported baud rates extend to 2 MBaud, enabling efficient exchange of process and diagnostic data.

Data Encoding Options

The RS485/422 interface supports multiple transmission formats, including:

• Transparent communication

• FM0 encoding

• FM1 encoding

• Manchester encoding

These options allow the interface to accommodate different communication requirements and system architectures where specialized encoding methods are required.

Installation Characteristics

The module is designed for mounting on standard TS32 or TS35 x 7.5 DIN rails. A minimum rail length of 11.7 cm (4.6 in) is required for installation.

Its compact enclosure simplifies integration into control cabinets where panel space is limited while maintaining accessibility for field wiring and maintenance.

Frequently Asked Questions

Q: What communication standards are supported by the FC-DCOM-232/485 CC V2.1?

A: The module supports both RS232 and RS485/422 communication interfaces in accordance with EIA/TIA-232 and EIA/TIA-485-A standards.

Q: What is the maximum supported baud rate?

A: The RS232 interface supports up to 250 kBaud, while the RS485/422 interface supports communication rates up to 2 MBaud.

Q: Does the module require an external power supply?

A: The specified input power is 5 VDC, with a maximum current requirement of 500 mA, supplied directly by the associated Honeywell control processor.

Q: Which DIN rail types are supported?

A: The module is designed for installation on TS32 or TS35 x 7.5 DIN rails and requires approximately 11.7 cm of rail space.