Honeywell FC-TCNT11 Redundant Controller Module SIL3 Rated

Product Overview

The FC-TCNT11 (Part Number: 51307928-176) is a high-availability redundant IOTA (Input Output Termination Assembly) controller module engineered for the Honeywell SC S300 and Safety Manager platforms. It serves as a core communication bridge in Safety Instrumented Systems (SIS), managing high-speed data exchange between redundant controllers and field I/O modules.

In mission-critical industrial environments, the FC-TCNT11 (Model: FC-TCNT11) provides a failsafe mechanism through automatic switchover and real-time memory synchronization. This ensures that safety logic and I/O states remain intact during hardware transitions, preventing unplanned downtime in oil and gas, petrochemical, and power generation facilities. Certified for use in SIL3-rated safety loops, this module is a fundamental component for maintaining process safety integrity.

Detailed Technical Specifications

The FC-TCNT11 is designed to meet the following professional engineering standards:

• Manufacturer: Honeywell (USA)

• Model Number: FC-TCNT11

• Part Number: 51307928-176

• Product Type: SC S300 IOTA Controller Redundant Module

• System Compatibility: Honeywell Safety Manager, SC S300, Experion PKS

• Redundancy Logic: Dual-path communication with automatic, seamless failover

• Safety Rating: IEC 61508 SIL3 Certified

• Input Power: 24 V DC (Nominal)

• Power Consumption: 40 W typical under full load

• Synchronization: Real-time memory and I/O state mirroring

• Operating Temperature: 0 °C to +50 °C (32 °F to 122 °F)

• Storage Temperature: -20 °C to +70 °C (-4 °F to 158 °F)

• Humidity: 5 % to 95 % non-condensing

• Physical Weight: 0.85 kg (Net); Shipping weight  3.0 kg

• Dimensions: 145 mm x 222 mm x 32 mm

• Mounting: Backplane-mounted within the Safety Manager chassis or cabinet