Overview
Manuals
Controller Identity
Release and Redundancy
Backup Assembly Boundary
Features:
- Honeywell specifies 32 MB program memory and a dual processor core for 8C-PCNT05.
- The model is a conformally coated Series 8 C300 Controller V5 using 8C-TCNTA1 IOTA.
- Honeywell distinguishes the separate 50182539-001 RAM Charger Assembly from the controller.
In Honeywell's May 2024 Series 8 specification, 8C-PCNT05 appears in the C300 controller model table as a V5 coated controller. Its comparison column gives 32 MB program memory and a dual processor core, with 24 V delivered through the Series 8 power system. The document lists 8C-TCNTA1 as the shared C300 IOTA and describes a two-module/IOTA arrangement with a redundancy cable where redundancy is designed. It also cautions that 8C-PCNT05 is not interoperable with 8C-PCNT03 as a mixed redundant pair.
The same OEM document lists 50182539-001 under the optional C300 memory-backup section as a RAM Charger Assembly for 8C-PCNT05. It is not the controller's own part number, so procurement and stock records should distinguish the two physical items. Before service, verify the full controller label, firmware and Experion release, IOTA, power-system connection, redundancy design and any backup assembly against the current Honeywell system documentation. Qualified personnel should use the approved change and commissioning procedure, record the pre-change controller state, and test the configured control paths after replacement.
The 8C-PCNT05 Honeywell Series 8 C300 Controller V5 may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell 8C-PCNT05 documentation and reference links.
This links directly to Honeywell's May 2024 original PDF without re-hosting it. See the model table and C300 comparison on pages 11-13 and the separate RAM Charger Assembly listing on page 44. Verify current release-specific notices before commissioning.
The manufacturer table identifies 8C-PCNT05 as a coated Series 8 C300 Controller V5. It separately lists 8C-TCNTA1 as the controller IOTA. Compare the complete physical controller label and installed system parts list before ordering; this page does not attach an unverified numeric controller suffix to the model.
The May 2024 specification says the V5 controller supports Experion R520 and later, while a separate Honeywell integration update calls out R520.2 for its PC/LX rollout. The specification explicitly says 8C-PCNT05 and 8C-PCNT03 are not interoperable. Verify the exact software release and redundant pair composition against current Honeywell instructions before a change.
Honeywell's memory-backup section identifies 50182539-001 as the RAM Charger Assembly for 8C-PCNT05. This optional accessory is a different physical item from the controller. The site's previous spare-part field confused those identities; it is intentionally cleared here. Confirm whether the installed design uses the assembly, and keep its own procurement, installation and maintenance records separate.
