I am using Labview 6i, and I need to write an enable/disable VI that will enable and disable 6 of the 8 relays at any time while keeping the whole vi running. Therefore one or more positions may be changed at a time, but positions that don't change cannot be interrupted when changing others (no port resets allowed). I was wanting to maybe send a 1 by 6 array of some sort out but I can't figure out how to use the array to communicate with the DAQ card, relay board and SC-2051 adaptor. There also needs to be error handling in and out. Thanks for your help. Any examples would be very helpful.