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PLC,即可编程逻辑控制器,是一种专业用于工业控制的计算机。它采用一种可编程的存储器,存储程序并执行各种各样的面向用户的指令。PLC在很多大型工业器械中都有应用。本文介绍了门座式起重机的控制电路中PLC的应用,解释了门座式起重机的控制电路勾陈,简单说明了改造方案,明确输入和输出点数,设计相关输入输出接线和操作面板,并对门座式起重机的工艺流程和系统程序设计做以简单分析。
PLC, a programmable logic controller, is a professional computer for industrial control. It uses a type of programmable memory that stores programs and executes a wide variety of user-oriented instructions. PLC has many applications in large industrial equipment. This article introduces the application of PLC in the control circuit of the portal crane, explains the control circuit of the portal crane, briefly explains the transformation plan, specifies the input and output points, designs the related input and output wiring and operation panel, Block crane crafting process and system programming to do a simple analysis.