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Introduce last_update MQTT topic

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Shows the timestamp of the last successfull statistics data from the specific inverter
This commit is contained in:
Thomas Basler 2022-10-31 14:38:10 +01:00
parent 547fe41ab1
commit b96f0c4dbe
2 changed files with 4 additions and 2 deletions
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5
docs/MQTT_Topics.md
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@ -24,6 +24,9 @@ serial will be replaced with the serial number of the inverter.
| [serial]/device/fwbuilddatetime | R | Build date / time of inverter firmware | |
| [serial]/device/hwpartnumber | R | Hardware part number of the inverter | |
| [serial]/device/hwversion | R | Hardware version of the inverter | |
| [serial]/status/reachable | R | Indicates whether the inverter is reachable | 0 or 1 |
| [serial]/status/producing | R | Indicates whether the inverter is producing AC power | 0 or 1 |
| [serial]/status/last_update | R | Unix timestamp of last inverter statistics udpate | seconds since JAN 01 1970 (UTC) |
### AC channel / global specific topics
@ -62,8 +65,6 @@ cmd topics are used to set values. Status topics are updated from values set in
| ----------------------------------------- | ----- | ---------------------------------------------------- | -------------------------- |
| [serial]/status/limit_relative | R | Current applied production limit of the inverter | % of total possible output |
| [serial]/status/limit_absolute | R | Current applied production limit of the inverter | Watt (W) |
| [serial]/status/reachable | R | Indicates whether the inverter is reachable | 0 or 1 |
| [serial]/status/producing | R | Indicates whether the inverter is producing AC power | 0 or 1 |
| [serial]/cmd/limit_persistent_relative | W | Set the inverter limit as a percentage of total production capability. The value will survive the night without power. The updated value will show up in the web GUI and limit_relative topic immediatly. | % |
| [serial]/cmd/limit_persistent_absolute | W | Set the inverter limit as a absolute value. The value will survive the night without power. The updated value will show up in the web GUI and limit_relative topic after around 4 minutes. | Watt (W) |
| [serial]/cmd/limit_nonpersistent_relative | W | Set the inverter limit as a percentage of total production capability. The value will reset to the last persistent value at night without power. The updated value will show up in the web GUI and limit_relative topic immediatly. | % |

1
src/MqttPublishing.cpp
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@ -70,6 +70,7 @@ void MqttPublishingClass::loop()
MqttSettings.publish(subtopic + "/status/reachable", String(inv->isReachable()));
MqttSettings.publish(subtopic + "/status/producing", String(inv->isProducing()));
MqttSettings.publish(subtopic + "/status/last_update", String(std::time(0) - (millis() - inv->Statistics()->getLastUpdate()) / 1000));
uint32_t lastUpdate = inv->Statistics()->getLastUpdate();
if (lastUpdate > 0 && lastUpdate != _lastPublishStats[i]) {