Troubleshooting - Siemens simatic ET 200SP User Manual

Troubleshooting

Problem
CPU 1515SP PC is not working.
CPU 1515SP PC does not start.
Windows no longer boots.
Time and/or date of the CPU 1515SP PC
not correct.
USB device is not working.
CPU 1515SP PC
Manual, 12/2014, A5E32701806-AA
Possible cause
CPU 1515SP PC is not supplied
with current.
Feedback through USB devices.
Settings in the BIOS setup are not
correct.
CPU 1515SP PC was not connect-
ed for more than 6 weeks.
USB power supply is overloaded.
Remedy
Check the power supply.
Use USB devices that comply with the
USB 2.0 specification.
Check the settings in the BIOS setup
menu Boot.
Correct the settings in the BIOS setup
menu Main or in Windows.
Use an external power supply for the
USB device (see section Application
planning (Page 31).
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