Spread the data point for many consumers? I'm probably overload it.

Please see the attached screencap.

The DAQ assistant, in the first case structure takes a lot of steps from a local cDAQ chassis.  One of these points of data (#15) must be extracted (where the signal selection) and then merged with the signals of three remote (ethernet connected) chassis.

The question that I have, it is that the point of data, due to the fact that the chassis and consumers are not running in a specific order or sync, sometimes just is not there when consumer loops run and it reads a 0 instead of the value.  This causes the test bench to think that he loss of hydraulic pressure and calling for a stop.

I know someone will tell me over the error of each DAQ assistant to another, but that creates a second 6.5 massive loop time, which is unacceptable.  The chassis must stay independent to reduce the execution time.

I'm looking for a way to 'catch' the #15 data point and hold down for consumers to use until the next iteration where it is replaced by the new value.  I don't know if the collector is what I'm looking for, a sort of copy of data or a registry.  If he was an automaton, I would like to know what to do with it.

Thanks in advance.

You need a registry change around your loop (with the right button of the border of the while loop). This provides a way to save a value to an iteration of a loop with the next iteration. When you read successfully a new value, use that; When you do not, use the value of the work to register.

Tags: NI Software

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