1762-IF2OF2
1762-IF2OF2
1762-IF2OF2
程序执行阶段。在执行用户程序过程中,PLC按照梯形图程序扫描原则,一般来说,PLC按从左至右、从上到下的步骤逐个执行程序。但遇到程序跳转指令,则根据跳转条件是否满足来决定程序跳转地址。程序执行过程中,当指令中涉及输入、输出状态时,PLC就从输入映像寄存器中“读入”对应输入端子状态,从输出映像寄存器“读入”对应元件(“软继电器”)的当前状态。然后进行相应的运算,运算结果再存入输出映像寄存器中。对输出映像寄存器来说,每一个元件(“软继电器”)的状态会随着程序执行过程而变化。
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厦门泰尼电气有限公司
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Furnas 3-5hp Magnetic Starter
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Rockwell Model 10 Band Saw 10" Inch 28-140
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