hansij66/hager2mqtt

Read (multiple) Hager modbus power meters and create MQTT messages

Hager ECR380D MQTT

MQTT client/parser for Hager ECR180D/ECR380D family kWh/power meters.

• Not all registers are implemented; adapt registermap.csv for your own needs
• Can be adapted for other Hager kWh meters, eg ECR180D.
• Use 190724_MODBUS_TABLE_FOR_ENERGY_METERS.XLS to adapt register.cv
• Supports multiple Hager power meters on one single RS485 bus
• Ensure that RS485 bus is properly terminated with 120 0hm resistor
• MQTT Parser has been tested with one device (I did not own more Hager power devices). It should work with multiple devices; Let me know if it works (or not)
• Timestamps (used for influxdb) are generated with 1sec accuracy
• All power meters are read in a single sequential burst

Usage:

• Copy systemd/hager-mqtt.service to /etc/systemd/system
• Adapt path in hager-mqtt.service to your install location (default: /opt/iot/hager)
• Copy config.rename.py to config.py and adapt for your configuration (minimal: mqtt ip, username, password, RS485)
• sudo systemctl enable hager-mqtt
• sudo systemctl start hager-mqtt

Use http://mqtt-explorer.com/ to test & inspect MQTT messages

Requirements

• paho-mqtt
• minimalmodbus
• pyserial
• python 3.x

Tested under Linux; there is no reason why it does not work under Windows.

InfluxDB

• Use telegraf-hager-powermeters.conf as Telegraf configuration file to get Hager MQTT data into InfluxDB

Licence

GPL v3

Versions

1.0.0

• Initial version
• Supports only single power meter

2.0.0

• Support multiple Hager power meters on one single RS485 bus

2.1.0

• update fpr mqtt library v5

2.1.1

• Fix 100% cpu/core utilization issue