Description
过程通道出现最多是卡件故障或就地总线故障。一种原因是卡件本身厂时间工作,元器件老化或损坏;另外,因外部信号接地或强点信号串入卡件也会导致通道故障。现在一般卡件本身都采取了良好的隔离措施,一般情况下不会导致故障的扩大,但此类故障一旦出现,则直接造成过程控制或监控功能的不正常。所以要及时查明故障原因,及时进行更换卡件。
Datacom Inc. Communication Processor
Met One 203 Facility Particle Counting System Counter
Met One 203-115-1 Facility Particle Counting System 203
Met One POINT 5 .5D-2-1 Particle Counter
Motorola MVME-167 MVME167 Single Board Module VME
Toshiba A/D Count Board PN: PX14-38512D
Toshiba Board PN: PX14-38509H
Toshiba Board TABLE CONT. Board PN: PX14-33275G
Western Atlas 3506 Analog VME Board PN: M145992
Western Atlas WTS 5710XC Hi-Speed A/D Converter Card