my PLC S7 315 2DP BUSF on red and SF BLINKING RED

MOSER

Member
M
Join Date
Jun 2011
Location
LAGOS
Posts
1
HELlO TO EVERYONE
THIS MY FIRST TIME IN THIS FORUM AND MY PROBLEM IS THIS ALARM ON THE PLC BUSF IS RED AND SF is blinking red .
what is the meaning and what can i do ? because an EBELT BT10 HMI is show 'no communication with PLC ' .
that did not stop the all process.
I am a new technician in the factory and i have few knolegde in PLC.
can someone help me ?
thanks in advance !
MOISE KOUAME
Lagos, Nigeria
 
I presume you have a Profibus network, so the problem might be with one of the profibus slaves.

If you are using Step7, then you can go online with the PLC, and check the error log, it will tell you what is the error
​
 

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