Hello,
in my project I use the NI PCI 6518 card to get a digital input (presence sensor (LED)) and a digital output (switch activation).
so I want to do a test: if read Input (1) = 1 then write output (14) = 1.
and this test will be made with TestStand!
I made the vi reading and writing (attached you find both vi) but I can not do the test !! 
please can anyone help me