BENTLY NEVADA 2155100-01-03-00-01-11-11-11-10-00-0

• 型号：2155100-01-03-00-01-11-11-11-10-00-0


• 数量：3


• 制造商：　厦门兴锐达自动化设备有限公司


• 有效期：2019/10/10 0:00:00

BENTLY NEVADA 2155100-01-03-00-01-11-11-11-10-00-0

BENTLY NEVADA 2155100-01-03-00-01-11-11-11-10-00-0

BENTLY NEVADA 2155100-01-03-00-01-11-11-11-10-00-0

用PLC完成对系统的控制对错常可靠的。这是因为PLC在硬件与软件两个方面都采取了许多方法，确保它能可靠作业。事实上，假设PLC作业不可靠，就无法在工业环境下运用，也就不成其为PLC了。

PLC的输入输出电路与内部CPU是电阻隔。其信息靠光耦器件或电磁器件传递。并且，CPU板还有抗电磁烦扰的屏蔽方法。故可确保PLC程序的作业不受外界的电与磁烦扰，能正常地作业。

在机械结构规划与制作工艺上，为使PLC能安全可靠地作业，也采取了许多方法，可确保PLC耐振动、耐冲击。运用环境温度可高达摄氏50多度，有的PLC可高达80--90度。

还有更进一步冗余的，选用三取一的规划，CPU、I/O模块、电源模块都冗余或其间的部分冗余。三套一起作业，毕竟输出取决于三者中的大都抉择的效果。这可使系统出缺点的机率简直为零，做到满有掌握。当然，这样的系统成本是很高的，只用于特别重要的场合，如铁路车站的道叉控制系统。

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