Siemens PC 670 用户手册

6-2

Panel PC 670 Computing Unit, Equipment Manual

Computing unit crashes during boot routine.

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

Checking the computer configuration:

S

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

S

If 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.