@Freelance_LV wrote:
Which is the DAQ hardware used in the project? are you using PXI/PCI/cDAQ or cRIO or RT?
how time critical is the control of compressor? you will be better off using timed loops if you have a very time critical control and if you are using a real time or an FPGA (more suitable for timed loops) target.
if you are running your code on Windows, i do not personally see an advantage in using the timed loops.
for windows:
the basic architecture should be producer consumer loop, with producer handling the user events like start stop etc. you will need multiple consumers, one for acquiring data and for logging data if you wish to. these two loops can run once every minute.
the analog control of the compressor should be in another loop running at the about 10ms or 50ms time delay. start and stop commands should be passed from the producer using FGV
for RT/FPGA, have your user event handling on Windows PC and pass commands using TCP/IP to RT for acquisition. there you may use timed loops if you want to.
for loop delays of 1 minute, timed loop is not required. use a timer function to check the time elapsed and execute the function
I have cDAQ 9188, 2 x NI 9214, 1 x NI 9203, and 1 x NI 9263 (analog signal generation).
Compressor should be controlled continuously and can be set its rpm immediately when the control is changed. Actually, this will be my first control project and do not have sufficient knowledge on it. I have never worked with RT and FPGA. So I do not know what they are exactly, structure, architecture, etc.
The user of mine just want to see analysis on the UI and they do not how to handle passing commands on both TCP/IP and RT. Hence, I prepared a execution of the VI to be used by the user easily.
Egemen
