We are using Siemens S7 CPU 319 F-3PN/DP with ET-200S DP slave module and 4F-DO, 1-FRO module, digital and analog module. We are getting following message in CPU diagnostics:
6:54:41.833 F-I/O depassivated
6:54:37.482 Module ok
6:54:37.333 F-I/O passivated
6:54:37.314 Module problem or maintenance necessary
6:54:37.300 Distributed I/Os station return
6:54:37.280 Module ok
6:54:37.615 Distributed I/O Station Failures
These alarms are getting repetitively. From the alarm list ‘Distributed I/O Station Failures’ alarm appears first. But I do not see in the panel from the LED any I/O station failures. But I see an input is sometimes going 0 which is supposed to be 1 in the digital input module. From this input it has crated a memory and from this memory it has connected with safety program. Could this input make problem? To find out I modified in the program so that it does not affect the safety program when the input goes to 0. But still I am getting the above alarm repetitively in the CPU diagnostics.
Could anyone help me what could be problem?
Also can I jumper one input direct at Input module (voltage is 24V).
6:54:41.833 F-I/O depassivated
6:54:37.482 Module ok
6:54:37.333 F-I/O passivated
6:54:37.314 Module problem or maintenance necessary
6:54:37.300 Distributed I/Os station return
6:54:37.280 Module ok
6:54:37.615 Distributed I/O Station Failures
These alarms are getting repetitively. From the alarm list ‘Distributed I/O Station Failures’ alarm appears first. But I do not see in the panel from the LED any I/O station failures. But I see an input is sometimes going 0 which is supposed to be 1 in the digital input module. From this input it has crated a memory and from this memory it has connected with safety program. Could this input make problem? To find out I modified in the program so that it does not affect the safety program when the input goes to 0. But still I am getting the above alarm repetitively in the CPU diagnostics.
Could anyone help me what could be problem?
Also can I jumper one input direct at Input module (voltage is 24V).