Description
Honeywell TK-CCR014
Technical Specifications Dual redundant network interface; DCS backplane bus interface; Operating power DC5V / DC24V; Operating temperature 0°C to +60°C; LED indicators for network A, network B and fault; Supports automatic network switch without process interruption; Rack plug-in form factor.
Functional Features Continuous health monitoring of both communication network channels; Hitless automatic switch between primary and standby network path; Network fault diagnosis for cable break and node communication loss; Fault status upload to DCS system alarm; Hot swap replacement capability; Non-volatile memory stores network configuration parameters; Isolation between control network and rack backplane.
Application Scenarios Petrochemical DCS control network; Power plant distributed control system; Refinery process control; Chemical batch production plant; Pharmaceutical continuous process system; Offshore platform control network.
Performance Parameters Network switching completes without interruption of control data; Fault detection latency is fixed; Data transmission integrity maintained during switch; Long-term continuous operation availability meets DCS requirement; Isolation protects rack backplane from network surge.
Material Composition Flame-retardant plastic module housing; Multi-layer glass fiber PCB; Network transceiver chips; Microprocessor; Gold-plated backplane connector; RJ45 or screw network terminals; LED status indicators; Conformal coating on circuit board.
Structural Features Plug-in rack module design; Rear gold-plated connector for DCS rack backplane; Front panel network ports and LED indicators; Locking latch for rack installation; Internal hardware circuit for dual network path switching.
Working Principle The module receives data from DCS controller through rack backplane and sends data out over primary network channel. It continuously receives heartbeat and diagnostic packets from both network A and network B. If primary network channel fails, the module automatically switches data transmission to standby network path. The module sends fault alarm to DCS system. When primary channel recovers, the module can switch back according to configured mode.
Installation Requirements Insert module into designated DCS rack slot and lock latch; Use industrial shielded Ethernet cable for network connection; Single-point shield grounding; Control cabinet protective earth connection; Maintain stable rack power supply.
Precautions for Use Confirm hot swap function before removing powered module; Check network cable connection and integrity periodically; Do not use non-industrial grade network cables; Keep network cable separated from high voltage power lines; Test redundancy switch function after installation.
