Hello,

In TIA portal if we create an alarm message we need use word not bool.

For example Alarm Word 1 ---> MW20

MW20 contains 2 bytes and 16 bits.

For HMI side Discrete Alarm page how we know M20.0 --->triger bit number 0 ?

And how we know M21.7--> triger bit number 15 ?

Is always like that ?

Kind Regards,

Musa UÇAN

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Split from Discrete alarm in TIA portal V13.