Communication Failure between KTP700 and Logo8

Hi

I have a project i am working on at present that has 3 Logo8's communicating with a KTP700 HMi.

Everything is working exactly as i need but I have one issue that i am trying to resolve.

I need to know if there is a break in communications between the HMi and the logos's so that I can then stop the active program and output an alarm.

Does the HMI output a tag that I could use as a status marker?

Nigel

Closed, because the question was posted twice.

The second thread with the subject Logo connected to HMI is published within the conference LOGO!.

Best regards
The Helping Hand