Description

Product Description

The Honeywell TC-PRR021, part number 51309288-225, functions as a critical high-availability component within the Experion LS Distributed Control System (DCS). This redundancy module facilitates a fault-tolerant architecture by synchronizing data between primary and secondary control processors. Consequently, the system maintains uninterrupted process control through an automated, seamless switchover mechanism should the active processor encounter a hardware or communication failure.

Engineered specifically for mission-critical automation, the TC-PRR021 manages real-time state mirroring between controllers, such as the C200E processor series. This active synchronization ensures that the backup unit is always ready to assume control without losing process variables or timing logic. Furthermore, the module incorporates advanced onboard diagnostics that continuously monitor the health of the redundancy link. These proactive monitoring features allow plant operators to identify and resolve potential vulnerabilities before they escalate into operational downtime.

Key Technical Features

• Brand: Honeywell
• Model: TC-PRR021
• Order Number: 51309288-225
• System Compatibility: Experion LS DCS / C200E Controller
• Module Category: Control Processor Redundancy
• Switchover Type: Seamless, Non-interrupted
• Communication Support: Ethernet-based Redundancy Link
• Origin: United States (USA)
• Operating Condition: Active / New
• Physical Weight: 1.1 kg
• Module Dimensions: 11.2 cm x 14.5 cm x 14 cm