3HAC12708-1 ABB

ABB 3HAA1001-186
ABB 3HAC15882-1
ABB 3HAC14972-1
ABB 3HAC15520-2
ABB 3HAC15887-1

分类: 标签:

Description

根据逻辑运算的结果,刷新RAM存储区或I/O映象区对应单元的状态。在输出刷新阶段,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

NEW INTEL DEVELOPMENT BOARD VHF BROADRIVER 2

Advantech MIC-3036-S2

New XKU-Band ODU Transceiver 2W Unit AN-3470-10 GILAT

Dialogic D/300PCI-E1 120 Ohm card

Lot of 16 68935949-000 for UNISYS ES7000

RADVISION asNT-10Server asNT-10 Server for viaIP400

InFocus LP800 3LCD 3500 ANSI LUMENIS Projector