curl http://X.X.X.X:9100/metrics
burner_fault_pending 1
circulation_pump_enabled 0
burner_enabled 1
safety_contact_enabled 1
chamber_temperature 21.812500
chamber_temperature_avg10 21.837500
chamber_temperature_avg60 21.825521
inlet_flow_temperature 22.437500
inlet_flow_temperature_avg10 22.437500
inlet_flow_temperature_avg60 22.434896
outdoor_temperature 21.937500
outdoor_temperature_avg10 21.937500
outdoor_temperature_avg60 21.933594
return_flow_temperature 22.375000
return_flow_temperature_avg10 22.375000
return_flow_temperature_avg60 22.375000
chamber_temperature_state 0
outdoor_temperature_state 0
inlet_flow_temperature_state 0
return_flow_temperature_state 0
safety_state 0
control_state 5
sntp_state 0
system_unixtime 1734814285
uptime_seconds 90
wifi_rssi -63
chamber_temperature_state
outdoor_temperature_state
inlet_flow_temperature_state
return_flow_temperature_state
Enum eSensorErrorState in safety.h
Value
Description
SENSOR_NO_ERROR
0
SENSOR_TOO_HIGH
1
Sanity check failed
SENSOR_TOO_LOW
2
Sanity check failed
SENSOR_UNCHANGED
3
Sanity check failed
SENSOR_NOT_FOUND
4
No Communication
Enum eSafetyState in safety.h
Value
Description
SAFETY_NO_ERROR
0
SAFETY_SENSOR_ERROR
1
At least one sensor failed
SAFETY_INTERNAL_ERROR
2
Internal error
Enum eControlState in control.h
Value
Description
CONTROL_STARTING
0
CONTROL_HEATING
1
Burner running
CONTROL_OUTDOOR_TOO_WARM
2
Heating not needed
CONTROL_RETURN_FLOW_TOO_WARM
3
Heating not needed
CONTROL_BURNER_FAULT
4
Burner reported fault
CONTROL_FAULT_SAFETY
5
Unable to control due safety fault
CONTROL_FAULT_SNTP
6
Unable to control due SNTP fault
Enum eSntpState in sntp.h
Value
Description
SYNC_SUCCESSFUL
0
SYNC_NOT_STARTED
1
SYNC_FAILED
2
Function
ESP32
PLC ES32C14
Output CirculationPump
IO27
Relay 1 NC1
Output Burner Fire Signal
IO14
Relay 2 NC2
Output Safety Contact (powers Burner)
IO12
Relay 3 NC2
Input Burner Fault
IO19
Digital Input IN1
Input Temperature DS10B20
IO04
1-Wire
