SF to S7-300

Hello;

Here is what Google Translate gives as a possible translation (Romanian Detected):

Hello. Please could I say no problem continuing UN In SF PLC S7-300 care is activated? thanks.

So it seems (my interpretation)that Edyhonda's PLC keeps running, even with a SF LED active.

That means:you have diagnostic OBs inserted in the program, that is what keeps the CPU running even in case of the active fault. Without these specialized OBs (OB80 to OB86, OB122) the CPU would shut down in the presence of a specific fault.

Please check the online help opf Step 7 fror more information on the diagnostic OBs.

The next step is to open the diagnostic buffer, it catches all events that are important to the CPU, including major faults. You shoud find information on the cause of the SF, and suggestions on what to do to correct it.

If you have trouble understanding the messages in the diagnostic buffer, save them I"As Text") and attach them to a messahe here on the forum, so we can have a look at them with you.

Hope this helps,

Daniel Chartier