May-00 BENTLY

IS200TRPLH1A GE
IS200TRPSH1A GE
IS200TRTDH1B GE
IS200TRTDH1BCC GE
IS200TRTDH1C GE
IS200TRTDH1CCC GE
IS200TRTDH1D GE
IS200TSVCH1A GE
IS200TSVCH1A GMR GE

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描述

根据PLC梯形图程序扫描原则,按先左后右先上后下的步序,逐句扫描,执行程序。遇到程序跳转指令,根据跳转条件是否满足来决定程序的跳转地址。从用户程序涉及到输入输出状态时,PLC从输入映象寄存器中读出上一阶段采入的对应输入端子状态,从输出映象寄存器读出对应映象寄存器,根据用户程序进行逻辑运算,存入有关器件寄存器中。对每个器件来说,器件映象寄存器中所寄存的内容,会随着程序执行过程而变化。

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