Engineering data collection

Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://www.stsci.edu/hst/training/events/HowHSTWorks/SSD990225/tsld025.htm
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Äàòà èíäåêñèðîâàíèÿ: Sun Dec 23 18:43:50 2007
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NSSC-I acts as single point contact for DF-224/SSM, collecting and forwarding engineering data for all SIs.
- Small quantity of engineering data (RIU direct) bypasses NSSC-I
- NSSC-I can provide an additional level of subcommutation to the data
- Software variables can be collected as telemetry

NSSC-I maintains a current value table in memory of all the SI engineering data.
- This table is accessible to the SI specific application processors

NSSC-I can maintain a table of up to 35 more parameters for each SI, which do not appear in the engineering telemetry
- This table is also accessible to the SI specific applications processors
- Used like the PITs, provides communication between SI computers and NSSC-I

NSSC-I can maintain a table of up to 32 parameters per SI which are checked against allowable limits
- This table is accessible to the SI specific applications processors
- This table is typically used to provide SI health and safety checks, NSSC-I can respond to an out of limits by safing and/or error message

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Engineering data collection

NSSC-I acts as single point contact for DF-224/SSM, collecting and forwarding engineering data for all SIs.

NSSC-I maintains a current value table in memory of all the SI engineering data.

NSSC-I can maintain a table of up to 35 more parameters for each SI, which do not appear in the engineering telemetry

NSSC-I can maintain a table of up to 32 parameters per SI which are checked against allowable limits