Problems When Using Non-Siemens Modules; The Display Of The Operating Unit Remains Dark - Siemens SIMATIC Panel PC 870 Equipment Manual

Fault Diagnosis
6.1 Problems when using non–Siemens modules
Response
The PC crashes when booting.
Cause
The following causes are possible:
– Double assignment of I/O addresses
– Double assignment of hardware interrupts and/or DMA channels
– Signal frequencies or signal level are not observed
– Connector pin assignment other than specified
Remedy
Check the configuration of your PC:
S If the configuration of your PC corresponds to the works default settings, please
contact your technical service department.
S If the configuration of your PC has been changed, restore the default status; to
do so, remove all non–Siemens modules, and then restart the computer:
– If the problem persists, call the hotline.
– If the error has dispappeared, the installed non–Siemens module was the
cause of the fault. Replace it with a Siemens module or consult the supplier
of the non–Siemens module.
6.2

The display of the operating unit remains dark

Cause/remedy
The following causes are possible:
Interconnecting cable connected not correctly
S Check the connections.
Incorrect BIOS settings
S Check the BIOS settings.
Note
For further information, please refer to the Start–up Guide.
6-2
Panel PC 870 Computing Unit Equipment Manual
Edition 12/01