1326AS-B690E-21 AB 编制控制程序

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IS200JPDLG1A
IS200JPDMG1A
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IS200JPDSG1A
IS200PRTDH1A
IS200SAMBH1A
IS200SPIDG1A
IS200SRLYH2A
IS200SRTDH2A

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描述

编制控制程序时,最好用模块式结构程序。这样既可增强程序的可读性,方便调试和维护工作;又能使数据库结构统一,方便WinCC组态时变量标签的统一编制和设备状态的统一显示。

要合理配置硬件资源,以提高系统可靠性。如PLC电源配电系统要配备冗余的UPS不间断电源,以排除停电对全线运行的不利影响。又如对电机的控制回路要进行继电器隔离,以消除外部负载对I/O模块的可能损坏。另外,系统设备要采用独立的接地系统,以减少杂波干扰。

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