Description
I/O以及警戒定时器的状态，并能诊断用户程序中的语法错误。当可编程逻辑控制器投入运行时，首先它以扫描的方式接收现场各输入装置的状态和数据，并分别存入I/O映象区，然后从用户程序存储器中逐条读取用户程序，
Juniper PE-ASII PE-AS2 PIC Adaptive Services M7i M10i
90 Day Warranty – Free Overnight Shipping!
Cisco MGX 8850 Switch AXSM-4-622 SM, 4 OC-12c/STM-4
90 Day Warranty – Free Overnight Shipping
New Motorola DSR-6000 Integrated Receiver/Decoder
90 Day Hardware Warranty – Free Shipping!
