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Honeywell CC-TCNT01
Product Name: Honeywell CC-TCNT01 (Original Replacement Part No. 51304592-100) FTE IOTA Terminal Module
Product Introduction: The CC-TCNT01 is a Fault Tolerant Ethernet (FTE) I/O Terminal Adapter (IOTA) module specifically designed for the Experion PKS C300 controller. It provides impedance matching for the FTE control network, dual-port redundant communication, and controller I/O bus termination.
Detailed content
Technical Specifications:
- Compatible Controllers: Honeywell C300, C200 (specific configurations)
- Network Ports: 2 × 10/100 Mbps RJ-45 copper Ethernet ports (IEEE 802.3u)
- Redundancy Protocol: Honeywell Fault Tolerant Ethernet (FTE), compliant with IEEE 802.1D
- Switching Time: < 50 ms upon link failure (seamless to control logic)
- Power Supply: 5 VDC from backplane (typical < 3 W)
- Current: 0.311 A, power consumption < 1 W
- Electrical Isolation: 250 VAC high-voltage isolation
- Operating Temperature: -20 °C to +70 °C (some sources cite 0 °C to +60 °C)
- Protection Rating: IP20 (cabinet rack installation)
- Dimensions: 160 mm × 100 mm × 40 mm
- Net Weight: Approx. 350 g
- Certifications: CE, UL, cUL, ATEX (for hazardous area models), IEC 61508 SIL 2 compliant
- Network Topology: Supports linear, ring, or hybrid FTE topologies
Functional Features: Hardware-level true redundancy using proprietary ring protocol at the data link layer (eliminates need for external managed switches); deterministic failover via hardware-based frame replication and discard; automatic IP address and VLAN configuration when used with C300; network security supporting VLAN segmentation, MAC filtering, and optional firewall rules.
Application Scenarios: Main control network redundant communication for large continuous process control DCS in petrochemical, power, metallurgy; critical for applications like LNG liquefaction plants where uptime directly impacts billion-dollar contracts.
Performance Parameters: < 50 ms recovery time (faster than standard RSTP/MRP which takes 100–500 ms); eliminates single points of failure in the control network.
Material Composition: Industrial-grade IOTA terminal module hardware.
Structural Features: Insertion module for the rear slot of C300 controller chassis; installed at the rightmost slot of the C300 controller rack (position not arbitrary).
Working Principle: Implements FTE at the data link layer using a proprietary ring protocol, maintaining active redundant paths, and performing hardware-based frame replication and discard to achieve sub-50 ms recovery. Provides impedance matching, I/O link termination, redundant power/clock bus access, and status LED diagnostics.
Installation Requirements: Must be installed in the designated rightmost slot of the C300 controller rack on the IOTA baseplate; supports online hot-swapping for maintenance without shutdown.
Usage Precautions: Do not arbitrarily change its slot position. It must be properly seated to ensure FTE dual-ring communication functions correctly.
