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2711-B6C2
1747-AENTR
DBDP74AB363BEBA30
0010-76175
2711C-T6C
3500/05-02-04-00-00-01
3500/15-05-05-00
3500/22-01-01-00
3500/42-01-00
3500/32-01-00
3500/94-14-01-00
HMS02.1N-W0054-A-07-NNNN
GJR5251600R0202 07AFI91
AHD70C4-44S

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描述

大、中型PLC(如西门子的S7-300和S7-400系列)一般采用模块式结构。模块式PLC用搭积木的方式组成系统,它由机架和模块组成(见图2-2)。模块插在模块插座上,后者焊在机架的总线连接板上,有的厂家将机架称为基板。PLC厂家备有不同槽数的机架供用户选用,如果一个机架容纳不下所选用的模块,可以增设一个或数个扩展机架,各机架之间用I/O扩展电缆相连,有的PLC需要通过接口模块来连接各机架。

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Vickers Hydraulic Pump

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Vickers High Volume Hydraulic Pump

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