Honeywell FSC 10024/H/I 26901 Enhanced Communication Module

Description

The Honeywell 10024/H/I (Model Type 26901) is an enhanced communication and interface module engineered specifically for the Honeywell Fail-Safe Control (FSC) safety system series. Designed to provide critical connectivity between systems, this rack-mounting card enables seamless inter-system data transfer and external network interface capabilities required in high-integrity industrial environments.

Operating on a 5V DC internal power rail with a typical current draw of 675mA, the module houses an integrated central processor along with dual front-panel serial ports. The port configuration consists of port A supporting RS-232 communication and port B configured for differential RS-422/RS-485 industrial links. This dual-interface architecture allows the FSC safety controller to interface concurrently with distributed control systems (DCS), supervisory control and data acquisition (SCADA) platforms, or dedicated operator stations without sacrificing system execution speed.

Features

• Dual Serial Architecture: Equipped with two front-panel DB9 connectors (Ports A and B) to manage isolated serial communication channels simultaneously.
• Multi-Protocol Support: Supports RS-232 link protocols on Port A alongside RS-422 and RS-485 differential links on Port B for versatile field connectivity.
• Integrated Processing: Features built-in central processor (CP) logic to handle communication overhead, offloading message parsing from the central FSC processing modules.
• Direct Rack Integration: Form-factor designed for direct insertion into standard FSC Central Part system bus racks (such as 7-slot, 12-slot, or 17-slot chassis configurations).
• Low Power Consumption: Runs off the internal system backplane supply at 5V DC drawing approximately 675mA under normal operational load.

Applications

• DCS and Safety System Interfacing: Establishing serial Modbus or proprietary communication links between Honeywell FSC safety systems and Honeywell Experion PKS or third-party DCS networks.
• External Device Monitoring: Connecting auxiliary industrial equipment such as local HMIs, sequence of events (SOE) recorders, and diagnostic computers to the FSC safety logic solver.
• System-to-System Peer Data Transfer: Supporting serial links between multi-rack FSC node configurations or distributed safety system architectures across process sites.

Technical Specifications

Connections / Interfaces

Installation Guidelines

1. Power Inspection: Verify system power and confirm that the backplane supply delivers stable 5V DC before inserting the card into the FSC rack chassis.
2. Card Slot Alignment: Ensure the target rack slot on the FSC S7-BUS, S12-BUS, or S17-BUS is free of debris. Carefully align the card edges with the guide rails and press firmly to seat the backplane edge connector.
3. Serial Cable Termination: For RS-422 or RS-485 connections on Port B, ensure proper line termination resistors are implemented across long cable runs to prevent signal reflection and data corruption.
4. Shielding and Grounding: Connect shielded twisted-pair cables to DB9 ports, ensuring proper signal grounding techniques are applied to prevent electromagnetic interference (EMI) from affecting safety communications.

Configuration and Replacement Recommendations

• Parameter Verification: Prior to replacing an existing module, record all serial communication parameters (baud rate, parity, data bits, stop bits, node ID) configured in the FSC engineering software.
• Hot Swapping Precaution: Power down the slot or respect FSC rack maintenance procedures before inserting or extracting the module to protect sensitivity-critical internal logic components.
• Commissioning Check: After installation, verify status LEDs on the front panel and initiate communication diagnostic tests from the master control station to confirm active Tx/Rx data transfer on both Port A and Port B.