Error Diagnostics - Siemens SIMATIC 6ES7 972-0CB20-0XA0 Manual

8

Error Diagnostics

The information in the following section offers support to help you locate and
perhaps correct common errors by yourself.
Error/Cause
POWER LED does not light
•
MPI cable not connected
•
Automation system is switched off
•
Hardware error
USB LED does not light
•
USB cable not connected
•
PC and PC Adapter USB are in energy saving
mode (hibernate mode).
•
PC Adapter USB is not detected by the PC
MPI LED does not light
•
MPI cable not connected
•
Firmware not loaded
No LED lights
•
MPI cable not connected
•
The required 24 V are not available at the MPI
socket
•
Hardware error
POWER LED flashes continuously
•
Hardware error
PC Adapter USB
A5E00166354-02
13.05.2003 13.05.2003 3.05.2003
13.05.2003
Remedy
•
Connect MPI cable
•
Switch on automation system
•
Inform Customer Support
•
Connect USB cable
•
Enter a reliable operating mode
•
Check driver installation and reinstall if
necessary
•
Connect MPI cable
•
Start the supplied firmware update
utility and check if the firmware is
loaded.
•
Connect MPI cable
•
Check cabling
•
Inform Customer Support
•
If the POWER LED of the device
continues to flash continuously even
after pulling and plugging the MPI
cable several times, the device is
defective and should be exchanged.
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