The K8055 and VM110 use the same USB chip like the USB-RnR-interface. Just the firmware is different. It can be responded with the provided SDK. The interface is a HID-device, which can be programmed with a HID-writer.
The two analog inputs have to be used for the simulator (X;Y) potentiometers. They transmit the currents postition of the simulator.
Note: the valveblock current is a little too high for the K8055/VM110. Therefor have two options.
1. Use the K8055 without transistors. The critical part for this option is the ULN IC* on the K8055/VM110. But if the ULN wears out, you can replace it with another one. Its easy to replace it, because all ICs are socketed. A ULN 2803A costs round about 2Euro.2. Or, assemble a transitor circuit board. Therefor all 8 relays have to be controlled individually. Virtually, a RnR USB board has to be made. Or you assemble the transistor-circuitry on a drilled board. Unfortunatly, a pot calibration, which the RnR USB interface is able to do, cannot be made with this setup. For this reason you should reduce the simulator movement to 70% in the Force-Profiler.
The interface is connected similar to the parallel-port-interface. Therefor all 8 open collector outputs have to be connected via the transitor-circuitry with the relays.
You have to mind the correct counting. Port B.0 is the first digital output on the interface.
Note: The interface has 12V DC input. RnR users cannot use their old RnR power-supply. You could take 12V out of your PC with a 5 1/4" Y-connector in case there are 12V 4-5A left over. A separate power-supply is advantegous.