See attached file, why do I get a question mark at the error field?
The FB does not generate any alarms when this happends.
Using Control builder Prof 188.8.131.52
Voted best answer
If you get ALM DEF ERR in System Event List the problem is likely incorrect alarm parameters.
SrcName + ConditionName must be a non-empty, not too long string (25 chars???) and unique within a controller.
Severity and Class must set within accepted range (1-1000 and 1-10000, ie not zero).