140DAO84210C

140DAO84210C

当用PLC进行网络设计时，其难度比PLC单机控制大得多。首先你应选用自己较熟悉的机型，对其基本指令和功能指令有较深入的了解，并且指令的执行速度和 用户程序存储容量也应仔细了解。否则，不能适应你的实时要求，造成系统崩溃。另外，对通信接口、通信协议、数据传送速度等也要考虑。

zui后，还要向 PLC的商家寻求网络设计和软件及详细的技术资料，至于选用几层工作站，依你的系统大小而定。

五、软件编制

在编制软件前，应首先熟悉所选用的 PLC产品的软件说明书，待熟练后再编程。若用图形编程器或软件包编程，则可直接编程，若用手持编程器编程，应先画出梯形图，然后编程，这样可少出错，速 度也快。编程结束后先空调程序，待各个动作正常后，再在设备上调试。

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现货，现货，降降降，火火火，火火火……

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