The Honeywell TC-CCR012 functions as a high-availability communication bridge specifically designed for the Experion PKS C300 controller platform. This 100% Brand New and Original Redundant ControlNet Interface provides the critical dual-link connectivity required to synchronize data between controllers and remote I/O chassis. By utilizing two independent physical ports (Port A and Port B), the TC-CCR012 ensures that a single cable break, connector failure, or port malfunction does not disrupt process visibility or control. It serves as a fundamental component in mission-critical Distributed Control Systems (DCS) where network uptime directly dictates facility safety and production continuity.
| Parameter | Specification Details |
| Manufacturer | Honeywell International Inc. |
| Model Number | TC-CCR012 |
| Network Protocol | ControlNet (Deterministic, Repeatable) |
| Transmission Speed | 5 Mbps |
| Interface Ports | Dual redundant ports (Port A and Port B) |
| Connector Interface | 2 × DB9 Male connectors |
| Input Voltage | 24 VDC (±10%) |
| Power Dissipation | < 5 W |
| Operating Temp | -40 to +70 deg C (-40 to +158 deg F) |
| Media Support | Shielded Twisted Pair (STP) ControlNet cabling |
| Dimensions | 100 mm × 160 mm × 25 mm |
| Weight | 0.5 kg (1.1 lbs) |
Deterministic Failover Logic: The TC-CCR012 incorporates hardware-level failover mechanisms. If the primary communication path encounters a signal loss or packet corruption, the module switches to the redundant port in milliseconds. This deterministic response maintains the strict timing requirements of the ControlNet protocol, preventing controller timeouts.
Extreme Environmental Hardening: Unlike standard networking equipment, the TC-CCR012 operates reliably across a wide thermal gradient from -40 to +70 deg C. This allows for installation in unconditioned remote instrument enclosures or extreme climate zones without risking network dropouts due to thermal stress.
Advanced EMI/RFI Shielding: The module utilizes DB9 connectors and supports Shielded Twisted Pair (STP) media to mitigate the effects of electromagnetic interference. This design ensures signal integrity when the bridge operates near high-voltage motor starters, variable frequency drives (VFDs), or heavy industrial switching gear.
Low Power Footprint: By limiting power dissipation to less than 5 Watts, the module minimizes the heat load within the C300 controller rack. This low thermal output extends the MTBF (Mean Time Between Failures) of the bridge and adjacent modules, reducing long-term maintenance costs.
How does the TC-CCR012 indicate a network fault?
The module features integrated front-panel LED indicators. These LEDs provide real-time status for the overall network health and specific activity on Port A and Port B. A "Fault" LED immediately signals a loss of redundancy or a configuration mismatch.
Can I use standard serial cables with the DB9 ports?
No. While the module uses DB9 connectors, you must use certified ControlNet Shielded Twisted Pair (STP) cabling. Standard serial cables lack the impedance matching and shielding necessary to maintain the 5 Mbps deterministic data rate required by the Experion PKS architecture.
Does the TC-CCR012 support hot-swapping?
Yes. In a redundant system configuration, you can replace a faulty TC-CCR012 module while the system is energized. Once the new module is seated, the C300 controller automatically re-establishes the redundant network link without process interruption.
What is the transmission limit for ControlNet via this bridge?
The bridge operates at a fixed 5 Mbps rate. The total distance and number of nodes depend on your specific network topology (trunkline/dropline) and the use of repeaters, but the TC-CCR012 ensures the maximum repeatable performance allowed by the ControlNet standard.
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