DSSR121 ABB

5PP320.1214-39
REM610REM610C11HCMP02
6AV7240-1AB07-0HA0
D674A906U01
PCI504-1022-4
MPSC-2000
499ACL-01-54-60
1FT6105-8AB71-1AA0
PCI5565-GE
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描述

S7-300 PLC有多种扩展方式,实际选用时,可通过控制系统接口模块扩展机架、Profibus-DP现场总线、通信模块、运程I/O及PLC子站等多种方式来扩展PLC或预留扩展口;二是PLC的联网,包括PLC与计算机联网和PLC之间相互联网两种方式。因S7-300 PLC的工业通信网络淡化了PLC与DCS的界限,联网的解决方案很多,用户可根据企业的要求选用;三是CPU的选择,CPU的选型是合理配置系统资源的关键,选择时必须根据控制系统对CPU的要求(包括系统集成功能

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