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GEM80 ESP Serial Protocol Definition
Please help, require GEM80 ESP definition

Hi All,

I am trying to communicate to a serial card, which I believe it uses a GEM ESP format protocol. I have come to this conclusion by monitor the HMI that communicates with the unit. which is written in Quick Basic!

To enable me to confirm the exact format and replace the HMI, it would be very helpful to have a GEM ESP format.

Thanks to all, for reading and helping with this query