Hi,

there is also another limitation in LOGO!.

As you now know you need a "Master" LOGO! collecting the errors from 30 other LOGO!. This is not possible.

One LOGO! can only communicate to up to 16 other LOGO! (8 static and 8 dynamic connections).

So you are at the same point again. Exchange the "errors" between your 30 LOGO! and use one on them as Master (requires to communicate between the 30 LOGO! and more then just two comunication levels).

Or use a HMI whitch support 30 connections to display the errors.

Hope this helps.