G123-820 设定值和斜坡模块

1326AB-B730E-M2K7L
1326AS-B690E-21
T161-903A-04-H1-2-AA
T160-902E-00-1A
PFSK151
PFSK152
PM803F
5SHY4045L0004
3BHB021400R0002
PP835、PP835A、PP836、PP836A、PP846、PP846A、PP865、PP865A
3BSE031155R1

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描述

在用户程序执行阶段,可编程逻辑控制器总是按由上而下的顺序依次地扫描用户程序(梯形图)。在扫描每一条梯形图时,又总是先扫描梯形图左边的由各触点构成的控制线路,并按先左后右、先上后下的顺序对由触点构成的控制线路进行逻辑运算,然后根据逻辑运算的结果,刷新该逻辑线圈在系统RAM存储区中对应位的状态;或者刷新该输出线圈在I/O映象区中对应位的状态;或者确定是否要执行该梯形图所规定的特殊功能指令。

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