darts_datapoint

Purpose:

Control the sequencing and reporting of various channel measurements. The channels are specified in the /specs/darts_specs.nnn as different keywords.

Enter:

darts_datapoint [darts_ss_specs.NNN]  [-csv] [-d] &

Where:

darts_ss_specs.NNN	Optional. The default is /specs/darts_ss_specs.nnn.
-csv	Optional. Specify this option to write the log file in .csv format.
-d	This adds debug to the task and generates an error for every missing variable name.

Example:

darts_datapoint

Notes:

Variable values may be time-averaged or instantaneous. In particular, the Fuel Reading Variable List is a set of specified channel values averaged between start and stop events from a designated collector task. A Fuel Reading is the time-averaging of various performance measurements to represent the steady-state performance of the engine. For averaged values, the program configures a list of channels and sends the list to the stat_child task.

After data for a Variable List is available, various flow and performance computations are made. The results are written into DARTS Datapoint and local Fuel Log files.

The Datapoint file can be written to /data/transfer/PAM_datapoint. darts_datapoint is usually started in the Go Script, /cell/go.scp, as part of the normal CyFlex startup sequence. It runs perpetually, responding appropriately to external CyFlex events.

Max number for FixedMetaData and MetaData are 256 each. The variable FR_disk_wrte must be set to ON to write a datapoint file Darts no longer uses spc_specs. Statistical variables need to be moved The darts_ss_specs task cannot run with the datapoint. One must be used at a time. If any duplicate keywords are found, then the program will exit. To use a keyword with dlogger rapid functionality, you must specify either AVER_RAPID or SNAP_RAPID.

See Also: