Model Explanation

TK = C200 A Series Rack; PRR = Processor Redundancy; 021 = Hardware Version Technical Specifications

Back panel supports multi-voltage power supply: 24VDC/5VDC/3.3VDC/1.2VDC; 24V power consumption 0.09A, 5V power consumption 1A; each card occupies 2 rack slots; net weight 450g; operating temperature -20℃ to +60℃; synchronous bus rate 100Mbps full duplex, channel voltage isolation 1500VAC; UL, CE explosion-proof Class I Div2 certification.

Interface and communication configuration

The panel is equipped with RUN/FAULT/standby status LED indicators; gold fingers on the rear side connect to the CPU base; on the side, there are two dedicated synchronous interfaces, which are connected to the other redundant rack with the same model module using matching redundant cables. Core function

Real-time data mirroring and parameter synchronization between the main and auxiliary controllers; In case of main controller failure, the standby CPU can be switched without any disturbance within milliseconds, and the production process remains stable; Hardware self-check, fault alarm for broken link; Supports hot swapping, and automatically completes program synchronization after replacement. Applicable scenarios

Key interlock DCS main control cabinets for chemical plants, oil refineries, and power plants (for occasions requiring redundant controllers).

Operation and maintenance instructions

Use in pairs with redundant CPUs, and select original factory shielded cables for synchronous lines; the cabinets are temperature-controlled and dust-proof, and strong electromagnetic interference synchronous lines are prohibited.