“首创号”掘进机采用的是LK220系列高端大型智能PLC，具有如下特点：具有单机、双机架冗余等多种机型支持多种通信协议，多种方式扩展不同类型I/O模块所有板卡均按照三防设计，防潮湿、防盐雾、防霉菌系统可靠性高，具有隔离、自诊断、输出预置等功能所有模块支持带电热插拔，采用防混销设计工作温度-40~+70℃，存储温度-40~+80℃
The products of Beijing Hollysys Intelligent Technology Co., Ltd. mainly include self controllable large-scale PLC, high-end large-scale intelligent PLC, safety PLC (SiL2), etc., and provide customers with diversified and customized automation product solutions.
The "pioneer" roadheader adopts lk220 series high-end large-scale intelligent PLC, which has the following characteristics: it has a variety of models such as single machine and double rack redundancy, supports a variety of communication protocols, and expands different types of i/o modules in a variety of ways. All boards and cards are designed according to the three prevention, with high reliability of anti humidity, anti salt fog, anti mold system, isolation, self diagnosis, output preset and other functions. All modules support hot plugging, Anti mix pin design is adopted. The working temperature is -40~+70 ℃, and the storage temperature is -40~+80 ℃
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