how do I pick the correct example to follow?

[bear 71]

I am monitoring 6 channels current output, using this information to ramp at 2 amps per/10 min's for 85% then to 100% for the remaining time. Sit for 20 min's then freefall to 0 amps.30 amps max. I found an "update channel VI for the first ramp, but what do I use from this point on?

[tnewton]

From your description I am not sure I have a clear picture of what you want to achieve.
AO Update Channel.vi sets the channel output to a specific level at the time the call to the VIO is made. You should be able to continue using that to set the output to 0 whenever you wish. There is no 'freefall' since the ouput is determined by a DAC which will output a specified value when it is strobed.