Controller Alarms in WinCC TIA

Hello all,

I have a project in which I am using device proxy to communicate simatic manager tag with wincc TIA advance (PC runtime). I have used ALARM_DQ in the logic. 

I can see the alarms in the Wincc project as controller alarm for time stamp alarms. I have three PLC connected So I can see alarms of 3 PLC. 

These alarms has same ID. For example PLC1 ID is 60000001 to 6000000F and same range is used for PLC2 and PLC3. Why they have same numbers? How these numbers are handled. Will it create problem?

Hello pradhan135,

• CPU-oriented unique message numbers
• and project-related unique message numbers.

Might be interesting to look at. Check out the help for more information.

Also, here is an application example about

• "Configuration of Messages and Alarms in WinCC (TIA Portal)"
  https://support.industry.siemens.com/cs/ww/en/view/62121503

Maybe you find your answer there?