Anyone connected ESP32 sensor nodes to Schneider field devices (Modbus/MQTT)?

[ariajames2]

Has anyone here tried feeding live sensor data from an ESP32 into a Schneider field controller (for example via an MQTT gateway or Modbus bridge) to trigger logic or logging? I was reading an ESP32 → MQTT tutorial https://www.theengineeringprojects.com/2021/11/esp32-mqtt.html

which shows how easily an ESP32 can publish sensor data to a broker, and I’m wondering how practical it is to route that stream into Schneider devices. I’ve seen Arduino forum threads where folks publish sensor streams to MQTT and Raspberry Pi projects that bridge MQTT→Modbus, but not many concrete examples tied to Schneider field hardware. If you’ve tried this, what integration pattern did you use (MQTT→gateway→Modbus, direct Modbus RTU/TCP from ESP32, etc.), and what issues did you hit with reliability, timing, or register mapping?