51404305-275 TK-PRS021 | HONEYWELL | Control Processor Module

The 51404305-275 (model TK-PRS021) is a C200 control processor module designed by Honeywell for the Experion PKS distributed control system. Installed in a C200 controller chassis, it executes real-time control algorithms, manages high-speed field I/O communications, and coordinates process control tasks across industrial networks. This module features a 24 VDC input power requirement, internal power rail regulation, onboard battery backup, and protective conformal coating.

Processor Power Architecture and Memory Backup

The TK-PRS021 processor receives a primary supply voltage of 24 VDC and conditions power for its onboard electronics across internal voltage rails [+5 VDC ±5% at 1.5 A and +3.3 VDC ±5% at 1.0 A]. To safeguard control logic and configuration data during main power disruptions, the unit includes an onboard non-rechargeable lithium battery providing up to 144 hours (6 days) of continuous memory retention.

Mechanical Specifications and Operating Parameters

Designed for chassis-based insertion within control enclosures, the module measures 17.8 × 7.6 × 27.9 cm and has a total package weight of 1.9 kg. Conformal coating on internal circuit assemblies protects sensitive components against environmental contaminants, supporting stable continuous operation in demanding industrial process control environments.

Frequently Asked Questions

Q: What system platform uses the Honeywell 51404305-275 TK-PRS021 control processor?

A: The TK-PRS021 module functions as the primary control processor module within the Honeywell Experion PKS C200 controller system.

Q: How is user memory protected during power outages on the TK-PRS021 processor?

A: An onboard replaceable lithium battery maintains volatile user memory and system configuration for approximately 144 hours (6 days) when primary power is lost.

Q: What are the primary input power requirements for this control module?

A: The unit operates on a 24 VDC power supply input and regulates internal logic rails at +5 VDC (1.5 A) and +3.3 VDC (1.0 A).