Description
The Honeywell 8C-PCNT02 is an enhanced ControlNet communications module designed for high-reliability integration between Honeywell’s Experion® PKS distributed control systems and Rockwell Automation’s ControlNet networks. As the successor to the 8C-PCNT01, this module delivers superior performance with deterministic data exchange for real-time control applications in hybrid automation environments. The Honeywell 8C-PCNT02 operates as a native bridge within Honeywell’s C Series I/O architecture, enabling seamless communication with ControlNet-compatible PLCs, motor drives, and remote I/O without protocol translation delays. Featuring dual-redundant BNC ports and support for 10 Mbps data rates, it synchronizes time-critical operations across up to 99 nodes with configurable scan times down to 1 ms – ideal for safety interlocks, batch sequencing, and high-speed machinery control.
Engineered for mission-critical deployments, the module incorporates advanced diagnostics that monitor network health, signal integrity, and data collision rates in real time. Its SIL 3 certification enables deployment in safety instrumented systems (SIS), while extended temperature resilience (-40°C to +70°C) ensures reliability in harsh environments like offshore platforms and foundries. The Honeywell 8C-PCNT02 reduces integration complexity by up to 40% compared to gateway solutions, allowing engineers to map I/O tags directly in Experion’s Control Builder while maintaining <0.5 ms jitter for precision control loops.

8C-PCNT02 HONEYWELL
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 8C-PCNT02 |
| Manufacturer | Honeywell |
| Product Type | ControlNet Communications Module |
| Network Protocol | ControlNet (Conforms to ODVA Spec) |
| Data Rate | 5 Mbps / 10 Mbps (Turbo Mode) |
| Max Nodes Supported | 99 |
| Scan Time | Configurable: 1–100 ms |
| Redundancy | Dual-Port (Coaxial BNC) |
| Isolation | 1500 V AC (Field to System) |
| Power Consumption | 2.0 W @ 5 V DC |
| Operating Temperature | -40°C to +70°C |
| Humidity Tolerance | 5–95% non-condensing |
| Certifications | SIL 3, ATEX, IECEx, cFMus |
| Backplane Interface | Honeywell C Series |
| Diagnostics | Node health, cable integrity, data collisions |
Main Features and Advantages
Ultra-Low Latency Control: The Honeywell 8C-PCNT02 achieves 1 ms scan times with sub-millisecond jitter, enabling precise synchronization of safety shutdowns and motion control across mixed-vendor systems. Optimized firmware reduces controller CPU load by 25% versus previous generations.
Cybersecurity & Safety Compliance: Integrated CIP Security™ features provide authenticated data transmission per ISA/IEC 62443 standards. SIL 3 certification allows direct integration into safety instrumented functions without additional hardware.
Network Resilience: Dual-path redundancy with automatic media fault switching ensures zero data loss during cable breaks. The module’s “bumpless download” capability allows online configuration changes without disrupting active control loops.
Enhanced Diagnostics: Real-time monitoring of signal-to-noise ratios, packet retries, and node utilization enables predictive maintenance. Fault events trigger detailed Experion alarms with root-cause analysis guidance.
Application Field
The Honeywell 8C-PCNT02 is engineered for critical hybrid control environments:
Petrochemical: Unifies Experion safety controllers with ControlNet-based compressor anti-surge systems.
Pharma: Synchronizes batch reactors (Experion) with Rockwell-controlled sterile filling machines (21 CFR Part 11).
Power Generation: Coordinates turbine governing (Experion) and balance-of-plant PLCs via ControlNet in nuclear facilities.
Automotive: Links paint booth environmental controls (Experion) to robotic conveyor PLCs with <2 ms latency.
Mining: Integrates Experion process optimization with ControlNet-enabled longwall shearer controls.

8C-PCNT02 HONEYWELL
Related Products
Honeywell 8C-PCNT01: Previous-gen ControlNet module (2 ms min scan time).
Honeywell 8C-PETH02: Ethernet/IP module for Rockwell integration.
Honeywell 51110727-200: Rugged ControlNet cable kit for 8C-PCNT02.
Rockwell 1756-CN2R/D: Redundant ControlNet module for Logix PLCs.
Honeywell 8C-CTRL02: Experion controller hosting 8C-PCNT02.
Honeywell 8C-PAIO2: Analog I/O module for ControlNet-linked signals.
Honeywell 8C-SCNI01: Secure network interface for remote diagnostics.
Rockwell 1784-PCICS: ControlNet interface card for engineering stations.






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