GE GPS1BHAL
PLC的主要特点
(一)高可靠性
1.所有的I/O接口电路均采用光电隔离，使工业现场的外电路与
PLC内部电路之间电气上隔离。
2.各输入端均采用R-C滤波器，其滤波时间常数一般为10~20ms.
3.各模块均采用屏蔽措施，以防止辐射干扰。
4.采用性能优良的开关电源。
5.对采用的器件进行严格的筛选。
6.良好的自诊断功能，一旦电源或其他软，硬件发生异常情况，CPU立即采用有效措施，以防止故障扩大。
7.大型PLC还可以采用由双CPU构成冗余系统或有三CPU构成表决系统,使可靠性更进一步提高。
丰富的I/O接口模块
PLC针对不同的工业现场信号，如:
交流或直流;
开关量或模拟量; .
电压或电流;
脉冲或电位;
强电或弱电等。
有相应的I/O模块与工业现场的器件或设备，如:
按钮
行程开关
接近开关
传感器及变送器
电磁线圈
控制阀
直接连接。另外为了提高操作性能，它还有多种人-机对话的接口模块;为了组成工业局部网络，它还有多种通讯联网的接口模块，等等。
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[New Other] GE MULTILIN T60K03HKHF8LH6
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GE 350-E-P5-G5-H-
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WESTERN ELECTRIC 261AK RELAY USE WITH WECO P-206115 CONTACTS
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12L0-0009-A8 For GE Multilin Distribution Feeder Protection system Board
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[New Other] GE MULTILIN T60G03HKHF8LH6
Ge 269PLUS-100P-1
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