"LAT Thermal Control diagnostic telemetry" (APP/LTC)

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Focus:	Maintenance / Operation
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LAT Thermal Control diagnostic telemetry (DiagLTC) 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=0x2DA
002	SF		Sequence Count
004	Packet Length=361
006	Timestamp
00E	ResRitSnsrSel snsrSel[0-11]
026	ResRitStatus snsrStatus[0-11]
032	HeaterMode actvHp
034	RawAdcStatus rawAdc[0-71]
0C4	TempCelsius temps[0-23]
0F4	TempCelsius ritLo[0-11]
10C	TempCelsius ritHi[0-11]
124	TempCelsius resLo[0-11]
13C	TempCelsius resHi[0-11]
154	TempCelsius dbDelta[0-11]
16C	HeaterCommand htrCmd
16E	HeaterState htrReg

Fields:

HeaterCommand (index)

Attribute(s):  

Brief:  "Current heater command and LTC control mode"

Instance(s):  htrCmd

For the heater bits, a value of '0' indicates that LTC is commanding the heater off. A value of '1' indicates that LTC is commanding the heater on. These heater commands are applied only when LTC is in active control mode.

HeaterMode (index)

Attribute(s):  

Brief:  "Control mode for VCHP heaters."

Instance(s):  actvHp

A bit value of '0' indicates that the heater is under manual, user control. A bit value of '1' indicates that the heater is under automatic, algorithm control.

HeaterState (index)

Attribute(s):  

Brief:  "Current heater state and LTC run mode"

Instance(s):  htrReg

For the heater bits, a value of '0' indicates that the heater is currently off. A value of '1' indicates that the heater is currently on.

RawAdcStatus (index)

Attribute(s):  

Brief:  "Sensor Status and ADC Counts"

Instance(s):  rawAdc

ResRitSnsrSel (index)

Attribute(s):  

Brief:  "Selected RSVR and RIT sensors"

Instance(s):  snsrSel

ResRitStatus (index)

Attribute(s):  

Brief:  "Heat pipe RIT and reservoir sensors status"

Instance(s):  snsrStatus

TempCelsius (index)

Attribute(s):  

Brief:  "Temperature converted to celsius."

Instance(s):  dbDelta, resHi, resLo, ritHi, ritLo, temps

Fixed point scaled by 8 bits (256).