原能源部编制的《煤矿安全规程》第３６１条规定：使用罐笼 提升的立井，井口、井底和中间运输巷的安全门必须与提升信号联锁，罐笼未到位，安全门打不开，安全门求关闭，只能发出调平和换层信号，但发不出开车信号。 根据这条规定，经现场调查，可采用可编程序控制器作主机（ According to Article 361 of Coal Mine Safety Regulations compiled by the former Ministry of Energy, the safety gates of shaft wells, well heads, bottom holes and intermediate transportation lane with cage lifting must be interlocked with the lifting signal, the cage is not in place, the safety door can not be opened and the safety door is closed , Only issued a leveling and layer signal, but can not send a car signal. According to this regulation, after the on-the-spot investigation, may use the programmable controller as the host computer