Overview
Manuals
Controller Identity
CEE Configuration
Support and Migration
Features:
- Honeywell lists CC-PCNT02 as a C300 controller with two I/O links and supported redundancy.
- The 2019 table distinguishes 50 ms standard from restricted, separately licensed 20 ms CEE.
- Honeywell's June 2025 notice announces Legacy Support transition by 2026 Q2.
Honeywell's July 2019 C300 Controller Capacity table lists CC-PCNT02 in both 50 ms and 20 ms CEE columns. The 50 ms configuration supports 375 kbaud PMIO and 750 kbaud Series-C I/O links, whereas the optional 20 ms column supports Series-C I/O only. Its footnote requires a separately loaded firmware version and license and restricts 20 ms use in the cited release. Both columns show FTE-only control networking, a six-inch IOTA, two I/O links and redundancy. Therefore the prior site's blanket statement that C300 20 ms is unsupported is inaccurate, but it would also be wrong to promise that capability for every installed release and application.
Honeywell's June 2025 System HINTS announcement states CC-PCNT02 was to enter Legacy Support by the second quarter of 2026. It notes RQUP controls from February 2025, an available off-process upgrade route to CC-PCNT05, and planned heterogeneous on-process migration beginning with Experion R540. The announcement also describes PCNT05's features, which must not be copied onto PCNT02. Before replacement or migration, confirm the site's current Honeywell support status, full 51454551-275 marking, controller revision, CEE firmware and license, application backup, I/O-link mix and redundancy state. Follow an approved change plan and verify control execution, communications, diagnostics and affected process functions afterward.
The CC-PCNT02 51454551-275 may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell CC-PCNT02 51454551-275 official technical documentation and product links.
This multi-page Honeywell technical document contains the exact model and its technical data. Apply the values to the supplied type number and verify its revision before installation.
Honeywell's C300 capacity table names CC-PCNT02 as a C300 controller, not an Ethernet cable or connector assembly. It lists FTE networking, two I/O links and supported redundancy. The reviewed PDFs do not map the site's additional 51454551-275 number, so verify that on the physical module and in Honeywell parts records. Also check the IOTA, controller revision and installed Experion release before selecting a spare.
The 2019 Honeywell table provides standard 50 ms and optional 20 ms CEE columns for CC-PCNT02. At 50 ms, PMIO and Series-C I/O link rates are listed; at 20 ms, only Series-C I/O is supported. A footnote requires separately loaded firmware and license and limits the cited 20 ms release/application. Confirm the exact site release instead of repeating either an unconditional 20 ms claim or an absolute prohibition.
Honeywell's June 2025 newsletter says CC-PCNT02 was reaching Legacy Support by 2026 Q2 and outlines migration to CC-PCNT05. This is a dated published plan; current entitlement, stock and approved migration method require a fresh Honeywell support check. A PCNT05 feature list does not describe PCNT02 hardware. Preserve application and redundancy records, then validate controller operation and all affected I/O under an approved migration or replacement plan.
