• LK Series Large Scale Programmable Controller (LK-PLC)

  LK-PLC follows IEC61131 standards and has obtained the IEC61508 SIL2 functional safety certificate issued by TÜV of Germany, has passed the Achilles Level 2 test for information security, and meets requirements at the national network security level. Its functions include physical signal IO, IoT device interconnection, industrial fieldbus and network interfaces, logic control, timing control, analog control, motion control and more, capably meeting the requirements of large-scale, highly reliable applications in automation control and security. LK-PLC adopts independent controllable technology; its system hardware, programming and configuration software, and online control software meet strict requirements for localization. HollySys also offers individual solutions geared toward different industrial sectors, providing fast, high-quality design and manufacturing of custom PLCs or dedicated control systems.
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Key Features

• High Reliability

  The controller conforms to IEC 61508 international standards and has obtained the SIL2 functional safety certificate issued by TÜV of Germany. It supports dual-rack or single-rack redundancy mode and uses dual-channel gigabit optical fiber between dual racks for the real-time synchronization of main and standby processors. The system supports multiple self-diagnosis modes and automatically switches to a standby processor without disturbance upon discovery of a fault in the main processor to guarantee an uninterrupted production process.

• Information Security

  The system has passed the Achilles Level 2 test for information security and meets the national network security level protection requirements. It can provide main control units and network units with trusted computing technology via encrypted communication using national secret algorithms.

• Autonomization

  LK-PLC provides master control and IO modules with domestic multi-core CPUs and key chips. We possess complete intellectual property rights over the configuration programming software and online control software, support domestic operating systems, and meet strict autonomation requirements.

• Large-scale

  The system supports cross-regional network remote deployment. The number of local IO units, extended IO units and remote IO units can reach 120 groups, and the maximum number of IO channels per IO unit group can reach 128 channels, while the total number of IO channels within the entire system can reach 15,360 points.

• Networked

  Supports MODBUS, MODBUS/TCP, CAN, IEC60870-101/103/104, Profibus, RTEX, EtherCAT, Powerlink and more than twenty other common fieldbus or industrial Ethernet protocols. OPC UA and MQTT interface modules will soon be launched to support a direct communication mode for Industrial Internet.