[AR] Re: LRE Test Stand Data Acquisition and Control Best Practices
- From: Ben Brockert <wikkit@xxxxxxxxx>
- To: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx>
- Date: Thu, 12 Jan 2017 16:35:39 -0600
On Thursday, January 12, 2017, Henry Spencer <hspencer@xxxxxxxxxxxxx> wrote:
On Thu, 12 Jan 2017, Ben Brockert wrote:
Taking all of the DAQ off the control system also means you can only
control open loop...
Separating control and data acquisition doesn't mean that the control
system has no sensors, only that it doesn't rely on the DAQ system to
provide it with sensor data. Not having to evaluate every change to the
DAQ software for possible controls impact makes the controls more reliable
and the DAQ much easier to change.
The thing the control system does with sensors is data acquisition. I don't
disagree that you can have two DAQ systems if you have secondary DAQ
requirements like high rate accelerometers. But the first system is still
DAQ and control, and it's perfectly safe and possible to get an engine
through development with such a system.
Ben
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