6ES5755-3AA11-489921
北京和利時智能技術(shù)有限公司產(chǎn)品主要包括自主可控大型PLC、高端大型智能PLC、安全型PLC（SIL2）等，為廣大客戶提供多樣化、定制化的自動化產(chǎn)品解決方案。
“首創(chuàng)號”掘進(jìn)機(jī)采用的是LK220系列高端大型智能PLC，具有如下特點：具有單機(jī)、雙機(jī)架冗余等多種機(jī)型支持多種通信協(xié)議，多種方式擴(kuò)展不同類型I/O模塊所有板卡均按照三防設(shè)計，防潮濕、防鹽霧、防霉菌系統(tǒng)可靠性高，具有隔離、自診斷、輸出預(yù)置等功能所有模塊支持帶電熱插拔，采用防混銷設(shè)計工作溫度-40~+70℃，存儲溫度-40~+80℃

6ES5755-3AA11-489921
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 ℃