DDS02.1-A150-DS01-02-FW #7078
DDS02.1-A150-DS01-02-FW #7078
从定时和计数控制上看，电器控制系统采用时间继电器的延时动作进行时间控制，时间继电器的延时时间易受环境温度和温度变化的影响，定时精度不高。而PLC采用半导体集成电路作定时器，时钟脉冲由晶体振荡器产生，精度高，定时范围宽，用户可根据需要在程序中设定定时值，修改方便，不受环境的影响，且PLC具有计数功能，而电器控制系统一般不具备计数功能。
福州卓凯电子科技有限公司联系人：林女士
公司地址：福州市闽侯西江滨大道77号正荣润园一号楼1205室
主营：世界的PLC 、DCS 系统备件 模块
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