Logs from the power management system on the Raspberry Pi server.

One line per record, sampled approximately every 10 minutes.

Sample record column meanings:

2018/09/22T12:00:06Z AL 1636 B1 12916 B2 -1 P 2157 BV 12788 ST OK - t A1P 21048 B1T 17 UC 100

Column  1       2018/09/22T12:00:06Z    Date and time of sample (UTC)
Column  2..3    AL 1636                 Ambient light level / charge current mA
Column  4..5    B1 12916                Battery 1 (primary bank) mV
Column  6..7    B2 -1                   Battery 2 (secondary bank) or -1 mV
Column  8..9    P 2157                  Metered power drawn from storage mW
Column  10..11  BV 12788                Battery 1 voltage measured at RPi
Column  12..14  ST OK - t               Status, - or D for dumping, reason*
Column  15..16  A1P 21048               PV array 1 (primary) charging power mW
Column  17..18  B1T 17                  Battery 1 temperature C
Column  19..20  UC 100                  Battery 1 usable capacity %

B2: was LiFePO4 battery; -1 indicates not in use.
ST: STatus from Very Low To Full (VL/L/OK/H/VH/F)
ST: dump reason (at 2023) in logic order:
  L Low battery  (not dumping)
  n not permitted to dump by external flag  (not dumping)
  t timeout minimum since dumping stopped  (not dumping)
  T Timeout minimum since dumping started  (dumping)
  m margin insufficient  (not dumping)
  F Full battery  (dumping)
  V Very high battery  (dumping)
  A Absorption stage of charging  (dumping)
  H High battery  (dumping)
  S State of charge too low  (not dumping)
  c charging  (dumping)
  E External high-priority request to dump and reduce grip demand  (dumping)
  r ride-though brief drop in charge  (dumping)
  s state of charge too low and house exporting to grid  (not dumping)
  h high battery dip ride-through  (dumping)
  N Not high enough priority to dump given SoC  (not dumping)
  e external low-priority request to dump and reduce grip demand  (dumping)


As extended:

2024/02/19T10:40:06Z AL 614 B1 12436 B2 -1 P 21515 BV 11135 ST OK - e A1P 7625 B1T 13 UC 48 A1V 27198

Column  21..22 A1V 27198                PV array 1 (primary) voltage V