We've used the 3100 with a Vilter compressor, which uses a windows CE based 'Think-n-Do' control software. I found it odd that the Thin-N-Do side of the did'nt use the coils for discrete information, everything was passed using Function 4, registers. I'm wondering if your headed down the same path I was when I first started with the Prosoft module. BTW, used it in several applications, all seem to work OK. Prosoft people can tell you about the module, but not how it is implemented by the controllers. Had to get the Vilter Tech Support to talk to the Think-N-Do developers. . etc etc etc. . Good luck. Robin
