Twincat3 Aventics Object

The ESI files for the AES valve system are part of the NexeedEcAvAes peripheral object. There is no ESI file for your specific configuration, but you have to add the slave and configure the module manually. The module type you need depends on the actual amout of valves. Of course, it would be easiest to scan it from the bus. Before you have the hardware, it is not really trivial to tell what module type it will be, but often "32 Byte Valve Unit (0x7F)" is a good guess.