Siemens PC 670 manual Problems Using External Modules, Fault screen, Cause, Remedy

Fault Diagnosis Release 04/02

6.1Problems Using External Modules

Fault screen

Computing unit crashes during boot routine.

Cause

The following causes are possible:

–Double assignment of input/output addresses,

–Double assignment of hardware interrupts and/or DMA channels,

–Signal frequencies or signal levels are not maintained,

–Deviating assignment of the connector

Remedy

Checking the computer configuration:

SIf the computer configuration corresponds to state on delivery, please contact your technical service department.

SIf the computer configuration has been modified, restore the state on delivery; to do this, remove the external modules and restart the computer:

–If the computing unit crashes again, contact the technical service department.

–If the fault no longer occurs, the external module used was the cause of the fault. Replace the module with a Siemens module or get advice from the supplier of the external module.

6-2 Panel PC 670 Computing Unit, Equipment Manual