The NSCL production readout software. -- Run state transition buffers

Run state transition buffers

Run state transition buffers

Run state transition buffers are emitted when the run changes state. For example, at the beginning of a run, a Begin buffer is emitted. Run state transition buffers have buffer type fields shown int the table below:

Run state transition buffer type field values

Value	Type of data
11	Begin run
12	End run
13	Pause run
14	Resume run

The body of all run state buffers has a common format:

Format of State transition buffer bodies

Buffer Word Offset	Size	Contents
16	80(bytes)	Null terminated run title string
56	2	Time since start of run in 1/10'ths of a second
58	1	Numeric month buffer was created
59	1	Numeric day of month buffer was created
60	1	Year buffer was created
61	1	Hour buffer was created (24 hour clock).
62	1	Minute buffer was created.
63	1	Second buffer was created.

Note

The entity count for all state transition buffers is zero.
For begin runs, the elapsed time field of the body (offset 56) is 0.
Any unsed bytes of the title are filed with nulls.
If necessary, the title is truncated to 79 bytes so that it can be null terminated
The title is a State variable and therefore is logged in full in the documentation buffers, See Run state variable buffers.

Report documentation errors to Ron Fox (fox@nscl.msu.edu)or NSCL's Bugzilla page

Run state transition buffers