Description
PLC是微机技术与传统的继电接触控制技术相结合的产物,它克服了继电接触控制系统中的机械触点的接线复杂、可靠性低、功耗高、通用性和灵活性差的缺点,充分利用了微处理器的优点,又照顾到现场电气操作维修人员的技能与习惯,特别是PLC的程序编制
PRE-L Cisco ONS 15800 Pre Line Amplifier Red and Blue
30 Day Hardware Warranty – Free Shipping!
Extreme Networks 60020 AC Power Supply BD8800 BD10808
90 Day Warranty – Free Shipping!
Redback PIM-M-2DS3 for SMS1800 Router Clear Channel DS3
90 Day Warranty – Free Overnight Shipping!