Overview
Manuals
CEE Execution Modes
Dual I/O Links
Controller Migration
Features:
- C300 controller with the CEE execution environment, FTE control-network connectivity and two I/O links.
- Standard 50 ms CEE operation supports the documented Series C and PMIO link arrangements; optional 20 ms operation has separate firmware, licence and application conditions.
- Honeywell identifies CC-PCNT02 as the earlier replacement and documents a CC-PCNT01/02-to-CC-PCNT05 migration path; neither statement removes the need for system engineering checks.
The Honeywell CC-PCNT01 51405046-175 is the legacy C300 controller at the center of a configured Experion PKS process-control application. Its CEE software environment executes the loaded control strategy while the processor exchanges information with the field I/O and other system nodes. Two I/O links are documented, with 750 Kbaud Series C communication and a 375 Kbaud PMIO option in the standard 50 ms configuration. The controller mounts on its corresponding IOTA, and a redundant installation requires the partner controller, a second IOTA and the proper redundancy connection.
Controller selection must include the execution mode and the installed software release, not just the plastic housing or base model name. Honeywell's optional 20 ms CEE arrangement requires a separately loaded firmware version and licence, and the cited specification restricts its supported I/O and application context. For ordinary legacy maintenance, retain the approved controller database, network identity and I/O-link assignments. For modernization, distinguish Honeywell's documented CC-PCNT02 replacement relationship from the later CC-PCNT05 migration route, and establish the required upgrade procedure before removing the working processor.
The CC-PCNT01 51405046-175 Honeywell C300 Process Controller Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell CC-PCNT01 51405046-175 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.
The documented standard base period is 50 ms. The optional 20 ms CEE is a separately loaded and licensed configuration, not a speed setting assumed to be present in every spare controller. The July 2019 specification limits 20 ms operation to Series C I/O and states the applicable Honeywell turbine-control context; PMIO at 375 Kbaud is not supported in that mode. Validate the actual Experion release and control strategy before selecting or changing execution mode.
Two I/O links connect the C300 processor to the supported field-I/O architecture. The standard 50 ms configuration lists 750 Kbaud for Series C and 375 Kbaud for PMIO. These link rates are not the FTE Ethernet rate and do not define end-to-end process response time. Preserve each link's configured I/O assignment and check the installed IOTA and network design when replacing the controller.
Honeywell's July 2019 technical information identifies CC-PCNT02 as the replacement for CC-PCNT01 in new installations and field replacement. Its June 2025 System HINTS notice additionally describes off-process migration from CC-PCNT01/02 to CC-PCNT05 and associates on-process migration with the applicable R540 route. Confirm the installed release, approved kit, firmware and procedure; a documented migration path is not permission for an unplanned live exchange.
