81001-450-52-R ALLEN BRADLEY

3HAC17253-1 ABB CAN
3HAC17324-1 ABB
3HAC17371-3 ABB
3HAC17396-1 DSQC 562 ABB
3HAC17484-10 ABB
3HAC17662-1 ABB
3HAC17707-2 ABB
3HAC17720-9 ABB
3HAC17721-2 ABB

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描述

PLC电源单元包括系统的电源及备用电池,电源单元的作用是把外部电源转换成内部工作电压。PLC内有一个稳压电源用于对PLC的CPU单元和I/O单元供电。编程器是PLC的最重要外围设备。利用编程器将用户程序送入PLC的存储器,还可以用编程器检查程序,修改程序,监视PLC的工作状态。除此以外,在个人计算机上添加适当的硬件接口和软件包,即可用个人计算机对PLC编程。利用微机作为编程器,可以直接编制并显示梯形图。

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