800xA Graphics - Event or Alarm Creation in a existing Object
I have a Standard (Standard for my application) Analog input module.
There is already an alarm, I want create one more event or alarm from the Plant exporer based on the value of signal without effecting the control module (Since its standard, I cannot edit the Control module)
So I may be adding one more Alarm Element and configuring ! ?
So theres will be separate Alarm and description if the value of this tag is 1, 2 , 3 Etc..
Voted best answer
SoftAlarms (Alarm Expression based alarms) does not offer the same time accuracy and reliability as controller generated alarms/events. No connection with PLC = no alarm.
SoftAlarms drain resources 24x7 and should be kept as few as possible.
If you can add the alarm in the PLC, I warmly recommend doing so.
That said, soft alarms do work in System 800xA, but with a significantly lower service level.