S7系列PLC电气控制设计与应用

摘要

西门子PLC的模拟量输出稳定而精确，电气接线相对比较简单。本文介绍了S7-300模拟量输出的接线及硬件组态。%Siemens PLC’s analog output is stable and accurate, and the electrical wiring is relatively simple. This article describes the S7-300 analog output wiring and hardware configuration.