FB_PLC_MQTT_DISCOVERY_DEVICE.md

FB_PLC_MQTT_DISCOVERY_DEVICE

INPUT(S)

OUTPUT(S)

METHOD(S)

• initDevice: collects all device info once
  • url this sets the url to your PLC.
  • availabilityTopic : topic to publish availability;
  • availabilityOnline: the word to puslish when the plc is online;
  • availabilityOffline: the word to puslish when the plc is offline;

Code example

• variables initiation:

	PLC_device					:FB_PLC_MQTT_DISCOVERY_DEVICE;

• Init MQTT method call (called once during startup):

PLC_Device.initPlcDevice(
	MqttDiscoveryPrefix := MqttVariables.MqttHADiscoveryPrefix,
	pMqttPublishQueue := ADR(MqttVariables.fbMqttPublishQueue),
	availabilityTopic := MqttVariables.MqttAvailabilityTopic,
	availabilityOnline := MqttVariables.MqttAvailabilityOnlinePayload,
	availabilityOffline := MqttVariables.MqttAvailabilityOfflinePayload
);

Device info in Home Assistant

Device name:

• open device structure
• change controller

App desc/auth:

• edit application settings

Time last start:

• autogenerated last time the ecp was saved

Device:

• autogenerated from hardware