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VT11031-1X力士乐

名称:VT11031-1X力士乐

供应商:福建卓凯电子科技有限公司

价格:面议

最小起订量:1/个

地址:福州市闽侯西江滨大道77号正荣润园一号楼1205室

手机:17705012279

联系人:小叶 (请说在中科商务网上看到)

产品编号:128853522

更新时间:2018-03-28

发布者IP:110.90.231.6

详细说明

  PLC的故障类型有哪些?

  外部设备故障

  外部设备就是与PLC实际过程直接联系的各种开关、传感器、执行机构、负载等。这些设备发生故障,会直接影响PLC系统的控制功能。因此,维修PLC,首先要分清是外部设备故障,还是PLC本身故障。

  系统故障

  1)系统故障是影响PLC系统运行的全局性故障。

  2)PLC系统故障可以分为固定性故障、偶然性故障。

  3)故障发生后,可以重新启动使系统恢复正常,则就是偶然性故障。如果重新启动不能恢复,而是需要更换硬件或软件,系统才能够恢复正常,则认为是固定性故障。

  硬件故障

  PLC硬件故障主要指PLC系统中的模板、电路损坏而造成的故障。

  软件故障

  PLC软件故障包含软件错误、操作错误等。PLC软件故障一般可以通过PLC本身的自诊断测试功能或者软件来查看、检查。

  公司主营产品有:AB,ABB,GE,西门子,力士乐,施耐德,福克斯,等工业自动化控制配件及各种停产备件。诚信经营,质量可靠,请放心购买,我们将竭诚为您服务!

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