Honeywell FC-TCNT11 SC S300 IOTA Redundant Controller

This redundant controller provides high-availability processing for Honeywell SC S300 IOTA systems. The FC-TCNT11 maintains uninterrupted operation through automatic failover between dual processing units. Its redundant architecture eliminates single points of failure in mission-critical industrial applications. This controller supports seamless switchover without disrupting active process control loops.

Processing Capabilities and Memory Specifications

The FC-TCNT11 features a 32-bit RISC processor running at 200 MHz for fast execution cycles. This controller includes 8 MB of flash memory for firmware storage and 4 MB of RAM for data processing. The unit supports up to 512 I/O points per controller without any performance degradation. Additionally, the redundant pair synchronizes its execution cycles to ensure bumpless transfer during failover events.

Parameter	Specification
Model Number	FC-TCNT11
Product Type	SC S300 IOTA Redundant Controller
Processor	32-bit RISC, 200 MHz
Flash Memory	8 MB for firmware
RAM	4 MB for operational data
Maximum I/O Points	512 per controller
Redundancy Type	Active/Standby with auto failover
Switchover Time	Less than 50 milliseconds
Communication Ports	2 x Ethernet, 1 x RS-485
Diagnostics	Built-in self-test with health monitoring

Physical Dimensions and Mounting Requirements

The FC-TCNT11 measures 180mm in width, 130mm in height, and 110mm in depth. This redundant controller weighs approximately 1.2 kilograms and mounts directly onto a standard DIN rail. The front panel provides LED indicators for power, status, and active/standby mode identification. Each unit includes a 50-pin backplane connector for interfacing with the IOTA system. Furthermore, the housing features a rugged metal construction that resists mechanical stress and vibration.

Energy Storage and Power Management

This controller consumes a maximum of 8.5 watts under full processing load. The FC-TCNT11 incorporates a supercapacitor-based energy storage system for data retention during power interruptions. This backup mechanism holds critical configuration data for up to 72 hours without external power. The unit also includes a real-time clock powered by a coin-cell battery for time-stamping events. Consequently, these features ensure data integrity and system reliability during unexpected power loss scenarios.

System Integration and Diagnostic Features

The FC-TCNT11 integrates seamlessly with Honeywell SC S300 IOTA distributed control systems. You can configure the controller using Honeywell’s engineering tools for streamlined setup and maintenance. The built-in diagnostic functions continuously monitor processor health, memory integrity, and communication status. Therefore, this redundant controller delivers exceptional availability for continuous process operations.