Need to Create a 4 step sequencer

[Philip2001]

I just purchased the USB 6341 DAQ card. I am using Dev1/.Port1 to control 4 driver transistors. The transistors fire 4 SSR. I am trying to create a sequence for the 4 transistors. Sometimes a test unit that is driven by a SSR will fail. So I have to change the sequence for the failed DUT. I will have one less DUT to test.

Basically each SSR will be ON for 6 seconds. There will be a delay of about 5.75 seconds for the next valve to fire. The delay is used to balance the pressure testing. The second valve will need to start at 5.75 seconds later. Basically the two valves must cross at the 50 % turn OFF. How can I perform this task. There are at least 7 different test sequences??

Thanks,

Philip 

[tinnitus]

hello,

in a first time you can have a look on how to use state machine

which is base of sequencer

http://zone.ni.com/devzone/cda/tut/p/id/3024

regards

Tinnitus