Description
自动重复执行程序扫描和I/O扫描，即输入采样、用户程序执行和输出刷新三个阶段。完成上述三个阶段称作一个扫描周期。在输入采样阶段，PLC以扫描方式依次地读入所有输入状态和数据，并将它们存入I/O映象区中相应的单元内，输入采样结束后
Digital Lightwave NIC Plus OC1, OC3, OC12
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Juniper PE-2OC3-ATM2-SMIR 2-port OC-3/STM-1 ATM2 IQ PIC
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Cisco ESR-8E3/DS3 8-Port Unchan E3/T3 ESR10008 Router
Cisco ESR-8E3/DS3 8-Port Unchan E3/T3 ESR10008 Router
90 Day Warranty – Free Overnight Shipping!
