Controlling LED using digital module NI 9401

Hello,

I am writing a program of water valve opening and closing by user input. The software program work good, but when I want to use for switching leby digital module , it create problem.

Please help me out with this.

I attach both the program and looking forward to your kind reply.

One more thing is that i am using NI 9401 two channels for led switching. 

Kindly check and give a solution for it. I am new to LabView.

 Thanks

Best Regards

Faisal