"Set Default Parameters" (APP/LPA)

ITOS Mnemonic:  LPASETDEFAULT

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Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Context:

Description:

Sets default parameters for LATC files and LPA_DB instance ID. These defaults can be activated for a physics run by using the value 0xffffffff in the corresponding LPASTART parameters. Validity flags allow for setting of individual parameters without altering others. A set valid bit will allow the parameter to be used.

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Set Default Parameters (SetDefault) Telecommand Packet Format
0x	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
000	Version=0			T=1	SH	APID=0x675:6
002	SF=3		Sequence Count
004	Packet Length=17
006	0	Function Code=6
008	DB_ID db
00C	LATC_ID latc
010	LATC_ID ignore
014	LATCPRMVALID valid
016	Packet Checksum

SetDefault (pkt)
|  DB_ID db (fld)
|  LATC_ID latc (fld) ... ignore (fld)
|  LATCPRMVALID valid (bf)
|  |  VALID_FLG db (0) ... ignore (2)
|  |  SPARE13 spare (3-15)

typedef struct _LPA_SetDefault_Pkt {

    /* CCSDS header */
    char                 hdr[8];

    /* Command payload */
    LPA_SetDefault_Prm   pay;

} LPA_SetDefault_Pkt;

Fields:

DB_ID (index)

Attribute(s):  

Brief:  "LPA_DB Instance ID"

Instance(s):  db

Specifies the numerical ID of an LPA configuration database instance. Each instance is generally associated with a distinct LPA category, such as norma or diagnostics.

LATC_ID (index)

Attribute(s):  

Brief:  "LATC Configuration File ID"

Instance(s):  ignore, latc

LATC instrument configuration file ID.

LATCPRMVALID (index)

Attribute(s):  

Brief:  "LATC Parameter Valid Flags"

Instance(s):  valid

Bitfield containing parameter validity flags.