Description
根据I/O映象区内对应的状态和数据刷新所有的输出锁存电路,再经输出电路驱动相应的外设,这时,才是PLC的真正输出。可见,采用PLC程序控制的过程和结果与继电器逻辑回路是有区别的,特别是涉及到梯级的次序、脉冲信号的捕捉等,
FANUC A20B-1003-0090 NEW A20B10030090
HONEYWELL FLAME AMPLIFIER R7886A1001 REMAN R7886 A 1001
MODICON ASP890000 REMAN ASP890000
TRERICE 91400 SELF OPERATING TEMP. REGULATOR NEW 1 1/4″
AUTOTECH CONTROLS SAC-M1151-6N00 USED SACM11516N00