currently, you can only talk to TCP modbus via Brains.
i.e. you will need to set up your TCP connection and varify it is working with the TCP modbus first.
(Read "Brains Users Guide") in the member support docs.
then once you have it set up, below is example rungs.(assumes, your tcp out is on cfg1, and your enables start
at your first address which equates to local var 0)
Enable1->noop->(Modbus TCP output, cfg1, local modbus var0)
Enable2->noop->(Modbus TCP output, cfg1, local modbus var1)
Enable3->noop->(Modbus TCP output, cfg1, local modbus var2)
Enable4->noop->(Modbus TCP output, cfg1, local modbus var3)
scott