首先,我不明白你说的远程I/O指的是profibus总线上的I/O ,还是GE的remote i/o?
你说的I/O故障表是在哪里看到的?
profibus总线上的I/O不输出,我就见得多。一般都是接触不良,有时候线缆过长或有干拢也会出现。报警时总线模块有报警。
下面的信息请参考。
Faults Loss of or Missing I/O Controller
(Fault group 0x02.)
When a Bus Controller stops communicating with the PLC or when a configured Bus Controller is missing, system variable #LOS_IOC (%SA13) is set to On. (To set it to Off, replace the module and cycle power on the rack containing the module.)
Choices: Diagnostic, Fatal.
Default: Diagnostic.