Description
The Honeywell CC-PCNT02 is a high-performance Control Processor (C300) module used in the Experion Process Knowledge System (PKS). It is the central processing unit of the C300 controller family, designed to execute complex regulatory and batch control strategies with high reliability and deterministic performance.
Product Parameters (Datasheet)
- Model Number: CC-PCNT02
- Series: Experion PKS C300
- Processor Type: Enhanced C300 Controller
- Memory: 16 MB (typical execution and data memory)
- Redundancy: Supports 1:1 hardware redundancy (with CC-TCNT01/02)
- Communication: FTE (Fault Tolerant Ethernet)
- Operating Voltage: 24 V DC
- Power Consumption: Approx. 8 Watts
- Execution Environment: Deterministic CE (Control Execution) environment
- I/O Support: Series C I/O and Series A I/O (via I/O Link)

HONEYWELL CC-PCNT02 51454551-275

HONEYWELL CC-PCNT02 51454551-275

HONEYWELL CC-PCNT02 51454551-275
Country of Origin
This advanced process controller is engineered and manufactured by Honeywell Process Solutions in the USA.
Application Fields
The CC-PCNT02 is a cornerstone of large-scale industrial automation:
- Refining & Petrochemicals: Controlling distillation columns, reactors, and blending units.
- Power Generation: Managing boiler controls and turbine auxiliaries.
- Pharmaceuticals: Executing precise batch control and maintaining 21 CFR Part 11 compliance.
- Oil & Gas Upstream: Operating offshore platforms and FPSO (Floating Production Storage and Offloading) units.
- Mining & Minerals: Controlling grinding circuits, flotation cells, and leaching processes.
Product Usage Instructions
- Mounting: The module is designed to be plugged into a Series C I/O Termination Assembly (IOTA). Ensure the locking levers are engaged to secure the module.
- Redundancy Configuration: For mission-critical loops, install two CC-PCNT02 modules on a redundant IOTA. The primary and secondary units will synchronize automatically via the redundancy cable.
- Networking: Connect the module to the FTE (Fault Tolerant Ethernet) switches using shielded Cat5e/Cat6 cables. This ensures high-availability communication with the server and HMI.
- Loading Firmware: Use the Honeywell Control Builder software to load the appropriate firmware and configuration. Ensure the hardware revision of the CC-PCNT02 matches the project requirements in the software.
- Battery Maintenance: The C300 uses a memory backup battery (RAM retention). Check the battery status in the system diagnostics and replace it as part of scheduled preventative maintenance.
Product Technical Description
The CC-PCNT02 (C300) operates using Honeywell’s unique deterministic execution environment. Unlike general-purpose computers, it executes control blocks (PID, Logic, Timers) in a fixed, repeatable time slice, which is essential for stable process control. It communicates over Fault Tolerant Ethernet (FTE), which provides a dual-path network that can survive single-point failures of cables or switches without losing control. The CC-PCNT02 “Enhanced” version features improved processing power and memory management over the original PCNT01, allowing for larger and more complex control strategies within a single controller pair.
Q&A (Common Questions)
Q: Can I replace a CC-PCNT01 with a CC-PCNT02? A: Generally, yes, but you must ensure the Experion PKS software version (Release) supports the CC-PCNT02 and that you perform the appropriate firmware migration.
Q: What does the “Redundancy” status indicate? A: If the “SYNC” LED is solid, the two controllers are synchronized. If it is flashing or off, the secondary controller is either missing or not yet fully aligned with the primary.
Q: How many I/O points can one CC-PCNT02 handle? A: While the theoretical limit is high, it is typically restricted by the “Control Processor Load.” Most engineers design for 40-60% CPU load to allow for future expansion and peak processing.
Q: Does it support peer-to-peer communication? A: Yes, the C300 can communicate with other C300 controllers and Series A controllers across the FTE network for coordinated plant-wide control.
Similar Model Recommendations
- Honeywell CC-PCNT01 (Standard C300 Controller)
- Honeywell CC-TCNT01 (Standard C300 IOTA)
- Honeywell CC-TCNT02 (Redundant C300 IOTA)
- Honeywell CC-PAIH01 (Series C Analog Input Module)
- Honeywell CC-PFB401 (Fieldbus Interface Module)
For technical support or to request a quote for the Honeywell CC-PCNT02, please contact our process automation specialists.
