modbus2prometheus

Simple prometheus exporter and controller for modbus RTU TCP protocol

Configuring

Modbus device url configuring with doc for modbus library

Simple configuration for RTU via TCP modbus:

device-url: "rtuovertcp://192.168.1.200:8899"
device-id: 16
speed: 19200
timeout: 1s
polling-time: 1s
read-period: 10ms
tags:
  - name: "temp_floor"
    address: 513
    operation: "read_float"
  - name: "servo_otopl"
    address: 522
    operation: "read_uint"

Build

$ go build

Install as service

You can copy files from ./etc/systemd/ folder to /etc/systemd/system and enable service

$ sudo cp ./etc/systemd/modbus2prometheus.config.yaml
$ sudo systemctl enable modbus2prometheus --now

Scraping metrics

Metrics exporting to /metrics endpoint. You can scrape metrics with prometheus or vmagent service. Configuration for vmagent in /etc folder