[Al Skierkiewicz]

OK,
I got called away so I am back now, sorry about that. The green yellow wire is a safety ground for use when the valve is installed in a way that could potentially contact a hazardous voltage. This is used to keep the body of the valve at ground potential. Since your robot has no ground reference, it will not be needed in this application. The two black wires must be connected to a switched 24 volt output. To use the solenoid module, look at the side for a equivalent circuit. You need to supply the battery power (+24 volts in your case) from the cRio power supply to the module. You will use both a red and black wire with the red going to the V supply terminal and the black going to the common terminal. Then select which output use want to use to control the valve. When that output turns on, an LED will light and the internal relay will close supplying +24 and common to the valve.