Description
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。
Alcatel OS8800 OS8-GNI-U24 UNPOPUTATED 1000BASE Ports
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Juniper ERX-COC12SM-A-IOA Channelized OC12 for ERX 1440
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Juniper IB-OC192-SON-SR2-E – Enhanced 1 Port OC192 M160
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