Product Details
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FAQs
Q1: What is the primary function of the TK-PRS022?
It is the central processing unit for the Honeywell C200E controller rack. It executes control logic, manages communication between I/O subsystems and the plant network, and coordinates data exchange with operator stations and higher-level systems.
Q2: Is the TK-PRS022 still in production?
No. The C200/C200E series was phased out by Honeywell on December 31, 2020. The module is no longer manufactured and is available only through aftermarket suppliers as legacy/spare-part stock. Honeywell recommends migration to the C300 Controller or ControlEdge UOC for new installations.
Q3: What is the difference between TK-PRS022 and TK-PRS021?
The TK-PRS022 is the C200E version with 16 MB user memory and K-grade conformal coating. The TK-PRS021 is the C200 version with less memory (typically 8 MB). Both are legacy modules phased out in 2020, but the PRS022 offers greater memory capacity for larger applications.
Q4: Does the TK-PRS022 support redundant configurations?
Yes. The TK-PRS022 supports redundant controller configurations when paired with a second identical module and the appropriate redundancy hardware (e.g., TC-PRR021 redundancy module). This provides hot-standby capability for high-availability applications.
Q5: What should I check before ordering a replacement TK-PRS022?
Verify the complete model number and revision (TK-PRS022 with 51404305-575 suffix) and confirm compatibility with your existing C200E rack configuration. Also check whether your system has been migrated to a newer platform, as the C200/C200E is no longer supported by Honeywell for new installations.