How to capture data and monitor them at the same time?

This is about my final year project. I need to capture the temperature and pressure information of a device continuously. And for safety issue, I also need to keep checking the temperature data all the time. When the temperature is too low, the it should be able to generate a signal the turn off the device automatically. So I hope to find a method that I can use to capture and monitor the data at the same time. But I cannot find any example online.

Answer 1

[Walter Roberson]

Using the Session Based Interface, create callback functions that collect chunks of data and process it, and start a Background acquisition. You could also use a timer function to periodically check the latest values, or you could set your trigger repeat count to collect a block of data for a time and check the block contents before continuing. (Checking a sample at a time is inefficient.)

[Ray Huang]

The DAQ that I use is with legacy interface. Do you mean that the automatic capture function "start(ai)" is a background function and I can use function "getdata" to check immediate temperature? Thank you for your reply.