HI All,

Im trying to link 6 logo 8's together to create like a scada system, 5 Logo's run individual programs with the 6th collecting information from them and displaying on a KTP400.

I have managed to get the 5 Logo's communicating with the one connected to the HMI and its working as planned.

But i cant get the main Logo to send information back to the individual Logos.

Im trying to send the value of a counter back to each logo.

Can someone please shed some light on how to use the VM mapping to send back to the Logo.

Thanks

ixo65

In attachment an example, how to transmitted the value of a counter of a LOGO! to another LOGO!.
The "Parameter VM Mapping" is used for this. The counter value is a DWord.

The example does not work in the simulation, only in real LOGO!s.

 Thanks,

Is there a way to do this without using a networked program, at the moment i have individual programs with a S7Server connection.