The PDM uses a $E Command to request status from the Pod. The only parameter is this command is a single byte that contains the type of status to be returned. The command format is as follows:

Oe 01 TT
0e 01 00

• byte 0e: mtype of 0e
• byte 01: length, fixed 1-byte command length
• byte TT: request type
  • $00 Command 1D Status Request standard status
  • $01 Command 02 Pod Information Response Type 1 - expired alert status
  • $02 Command 02 Pod Information Response Type 2 - fault event information
  • $03 Command 02 Pod Information Response Type 3 - contents of data log
  • $05 Command 02 Pod Information Response Type 5 - fault information with Pod initialization time
  • $06 Command 02 Pod Information Response Type 6 - hardcoded values
  • $46 Command 02 Pod Information Response Type $46 - flash variables including state, initialization time, any faults
  • $50 Command 02 Pod Information Response Type $50 - dumps up to 50 entries data from the flash log
  • $51 Command 02 Pod Information Response Type $51 - like type $50, but dumps entries before the last 50

The usual PDM status request for type 0 yields a Command-1D-Status-response response from the Pod. All of the other $0e command type requests will generate a Command-02-Pod-Information-Response from the Pod of varying different formats depending on the request type.

Request type 0 example:

Oe 01 TT
0e 01 00                                                PDM request type 0

1d SS 0PPPSNNN SSTTTTRR
1d 19 061f6800 044295e8                                 Pod responds with $1D status

Request type 1 example:

Oe 01 TT
0e 01 01                                                PDM request type 1

02 13 01 XXXX VVVV VVVV VVVV VVVV VVVV VVVV VVVV VVVV
02 13 01 0000 0000 0000 0000 0000 0000 0000 0000 0000   Pod responds with $02 pod information type 1

More Examples can be found here:

• Status-Packets
• Status-packets-Reservoir-level-40U
• Status-packets--40U-in-reservoir