Hope there is a simple solution! Still a relative neophyte updating others code.
We have been operating our vacuum system using SNAP-PAC modules and code. We have been using Supertrends to record several pressures every 5 seconds. This has been acceptable, but we have much tighter requirements becoming effective soon and higher resolution is required during transition cycling. (Pumping down or venting.) The actual pressures are measured every 350ms, but this may be decreased to every 250ms.
I considered starting a timer when a transition event started and save the required pressures as well as the time it occurred to an array. Example: a 312 deep array covers 109.2 seconds, the longest time we take is 100. At the end of the cycle, trigger saving the array to a log file. However, I have been told that the array must be captured by PAC Display at a higher rate so it is available to be saved when triggered to be saved.
Is there a good way to do this?
How expensive (resource wise) is it to capture pressures every 0.5 seconds or 0.25 seconds?
Thanks in advance for you time.