Brief Product Description

Honeywell CC-PCNTOX, part number 51308307-175, is the legacy C300 process controller module for Honeywell Experion PKS DCS platform. It is the core control card executing CEE (Control Execution Environment) deterministic control strategy, continuous control, batch sequence and logic calculation for process plant. Powered by 24VDC backplane power, it integrates dual FTE (Fault Tolerant Ethernet) network ports for redundant control network communication. This controller supports simplex or redundant paired configuration for bumpless failover. It works with matched C300 IOTA termination assembly and Series C I/O modules to collect field signals and output control commands. Wide operating temperature range -40℃ ~ +70℃, suitable for harsh industrial cabinet environment. Fully tested surplus and refurbished Honeywell CC-PCNTOX (51308307-175) modules are available for legacy Experion PKS system maintenance, spare replacement and plant retrofit projects.

Core Product Functions

• Core C300 controller module for Honeywell Experion PKS Series C rack DCS system
• Run CEE deterministic control engine, execute PID, interlock logic, S88 batch control strategy
• Dual FTE Ethernet interfaces, support fault-tolerant redundant control network communication
• Support simplex or 1:1 redundant controller pair with bumpless switchover during fault
• Communicate with Series C IOM cards via backplane bus to acquire process variables and send control outputs
• 24VDC backplane power supply, no separate external power required
• Built-in controller self-diagnostics, monitor CPU, memory, network and backplane health status
• Supports downloading control strategy from Control Builder, online parameter modification and trending
• Supports hot-swap operation for online rack maintenance in redundant configuration

Application Scenarios

• Legacy Honeywell Experion PKS C300 DCS main process control node
• Thermal power plant boiler, turbine auxiliary system continuous control and interlock logic
• Petrochemical, refinery continuous process closed-loop regulation and batch control
• Oil & gas, pulp & paper plant critical process monitoring and automatic control
• Metallurgy, water treatment industrial process automatic control and sequence logic
• Legacy Experion PKS C300 controller replacement, maintenance and plant retrofits

FAQ (Frequently Asked Questions)

• Q: Controller fail to run or offline after installing CC-PCNTOX?
  A: Confirm firmware compatibility with Experion PKS version, check 24VDC backplane power, FTE network cable and IOTA match, inspect backplane connection and grounding, verify control strategy download.
• Q: Does Honeywell CC-PCNTOX support hot-swap replacement?
  A: Hot swap is available only under redundant controller configuration. Risk assessment and LOTO lockout-tagout must be performed before replacement to avoid process disturbance.
• Q: What is the difference between CC-PCNTOX and CC-PCNT01 / CC-PCNT02?
  A: CC-PCNTOX is an early legacy C300 controller variant; CC-PCNT01/02 are mainstream standard C300 controllers with updated firmware and hardware, later replaced by CC-PCNT05.
• Q: What accessories does it need?
  A: Must be paired with matching C300 IOTA termination assembly, Series C chassis and backplane.
• Q: Is Honeywell CC-PCNTOX (51308307-175) available for new DCS projects?
  A: This legacy Experion PKS C300 controller module is end-of-life for new installations. Only fully tested surplus and refurbished units are supplied for existing DCS system maintenance and retrofits.