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This process acquires data from channels on modules whose sampling mode property is single-point. These channels acquire a single value per read instead of continuously acquiring samples at a high sampling rate. In other words, this process does not acquire data as waveforms. This process relies on the NI Scan Engine interface rather than the FPGA interface, which means it reads and updates all single-point values at a one-second sample rate.
Reads one single-point value per second from channels on static C Series modules.
The SDK does not provide any messages you can send to this process specifically. This process periodically acquires a sample from all physical channels on static modules.
This process does not start or advance the Dataflow Script. However, the values of single-point channels pass through Dataflow Script through the following process:
For an illustration of this behavior, refer to Relationship between Data Acquisition Processes and Dataflow Script.
If the configuration for a channel contains slope and intercept properties for scaling its values, this process reads and applies them.
Writes one map point per single-point channel. The value of each point is the latest channel value after any scaling.