"PDU Environmental Packet 0" (APP/LHK)

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Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Context:

Description:

PDU Environmental Packet 0

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PDU Environmental Packet 0 (PduEnv0) Telemetry Packet Format
0x	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
000	Version=0			T=0	SH	APID=0x21E
002	SF		Sequence Count
004	Packet Length=109
006	Timestamp
00E	Padus16 rsv
010	Padus16 spare0[0-1]
014	PDUTEMPWR tempwr
016	PDUEPUPWR epupwr
018	PDUACDPWR acdpwr
01A	ADC temvolt[0-15]
03A	ADC temtemp[0-15]
05A	ADC epuvolt[0-2]
060	ADC eputemp[0-2]
066	Padus16 spare1[0-6]

PduEnv0 (pkt)
|  Padus16 rsv (fld) ... spare0[0-1] (fld)
|  PDUTEMPWR tempwr (bf)
|  |  switch temf (0) ... tem0 (15)
|  PDUEPUPWR epupwr (bf)
|  |  Padus13 spare0 (0-12)
|  |  switch epu2pwr (13) ... epu0pwr (15)
|  PDUACDPWR acdpwr (bf)
|  |  Padus3 spare0 (0-2)
|  |  status temread (3)
|  |  Padus3 spare1 (4-6)
|  |  status epuread (7)
|  |  Padus3 spare2 (8-10)
|  |  switch acdread (11)
|  |  Padus2 spare3 (12-13)
|  |  select supply (14)
|  |  switch acd (15)
|  ADC temvolt[0-15] (bf)
|  |  ADClimit limit (0-2)
|  |  status status (3)
|  |  ADCvalue value (4-15)
|  ADC temtemp[0-15] (same bf)
|  ADC epuvolt[0-2] (same bf)
|  ADC eputemp[0-2] (same bf)
|  Padus16 spare1[0-6] (fld)

typedef struct _LHK_PduEnv0_Tlm {

    /* Telemetry header */
    char                 hdr[14];

    /* Explicit 16 bit pad in unsigned short */
    unsigned short       rsv;

    /* Explicit 16 bit pad in unsigned short */
    unsigned short       spare0[2];

    /* PDU TEM power state register */
    LHK_PDUTEMPWR        tempwr;

    /* PDU EPU crate power state register */
    LHK_PDUEPUPWR        epupwr;

    /* PDU ADC Power Management Register */
    LHK_PDUACDPWR        acdpwr;

    /* An ADC result */
    LHK_ADC              temvolt[16];

    /* An ADC result */
    LHK_ADC              temtemp[16];

    /* An ADC result */
    LHK_ADC              epuvolt[3];

    /* An ADC result */
    LHK_ADC              eputemp[3];

    /* Explicit 16 bit pad in unsigned short */
    unsigned short       spare1[7];

} LHK_PduEnv0_Tlm;

Fields:

ADC (index)

Attribute(s):  

Brief:  "An ADC result"

Instance(s):  eputemp, epuvolt, temtemp, temvolt

A compound of ADC readout and limit evaluation

Padus16 (index)

Attribute(s):  

Brief:  "Explicit 16 bit pad in unsigned short"

Instance(s):  rsv, spare0, spare1

Explicit 16 bit pad in unsigned short

PDUACDPWR (index)

Attribute(s):  

Brief:  "PDU ADC Power Management Register"

Instance(s):  acdpwr

PDUEPUPWR (index)

Attribute(s):  

Brief:  "PDU EPU crate power state register"

Instance(s):  epupwr

Contains the state of the EPU power switches in the PDU.

PDUTEMPWR (index)

Attribute(s):  

Brief:  "PDU TEM power state register"

Instance(s):  tempwr

Contains the state of the TEM power switches in the PDU.