Product Overview
The TK-PRR021 (Part Number: 51309288-275) is a specialized Redundancy Module (RM) for the Honeywell Experion PKS platform. It enables high-availability controller configurations by managing synchronization and seamless failover between primary and secondary C200 controllers. Through real-time data mirroring, this module ensures that hardware or power failures in the active processor do not disrupt industrial process continuity.
Designed for installation in a Series-A chassis, the TK-PRR021 occupies two slots and interfaces directly with the backplane to monitor the status of paired controllers. It is a critical component for safety-instrumented systems and high-uptime environments such as petrochemical refining, chemical processing, and large-scale power generation.
Technical Specifications
| Feature | Specification |
|---|---|
| Model Designation | TK-PRR021 (51309288-275) |
| Alternative PWA Reference | 51309283-300 |
| Functional Category | Redundancy Interface / Fault Tolerance Module |
| System Compatibility | Honeywell C200 Controller / Experion PKS |
| Chassis Footprint | 2 Slot Positions (Series-A) |
| Status Indicators | Front-panel LEDs for module health and redundancy status |
| Environmental Rating | Class I, Division 2, Groups A–D (T4A) |
| Operating Temperature | -20°C to +60°C |
| Unit Weight | 0.45 kg |
Application Scenarios
Implementing redundant C200 controller pairs in DCS environments
Enabling fault-tolerant networking for mission-critical process loops
Ensuring zero-downtime control transitions in hazardous area installations
Frequently Asked Questions (FAQ)
Q: What is the difference between the TK-PRR021 and the TK-FTEB01?
A: The TK-PRR021 is a dedicated controller redundancy module for hardware-level failover, while the TK-FTEB01 serves as a Fault-Tolerant Ethernet (FTE) bridge for network-level redundancy.
Q: Does this module require external power?
A: No. The TK-PRR021 draws all required voltages (24V, 5V, 3.3V, and 1.2V) directly from the Series-A chassis backplane.
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