Read data from a flowmeter on a microcontroller (ethernet/IP or modbus)

See more:

serial

protocol

communication

, +

Hello

For a personal DIY project, I want to make an app that measure water consumption and send the data to an API.

I have the Keyence FD-Q50C clamp on flowmeter that has a screen to display the data. The flowmeter can be connected to the IO Link Master module Keyence NQ-MP8L which has a M12 to Ethernet cable that can transmit the data. Keyence offers the NQ Sensor Monitor software to configure the NQ-MP8L, by linking the module to my PC with the Ethernet cable I managed to configure the IP of the module.

Now I would like to read the data on a microcontroller. On the NQ-MP8L datasheet, it is said that the module is compatible with different data sending protocol: Ethernet/IP, Modbus, Profinet.

What I have tried:

I first wanted to see the data format so I used Wireshark and I observed that I was receiving some CIP packets from the module (I don't have a pipe on which I can plug the flowmeter so I don't know if it would send some different data with a flow or if it send data even when the flow is null).

I have now some difficulties to understand how the data are transmitted and their format in order to read them on a microcontroller. I have a microntroller (W5500 EVB Pico) with an Etheret Port on which I can plug the NQ-MP8L but I am open to suggestions.

Here are the datasheets : https://drive.google.com/drive/folders/1tGxoTztU6-aOUp8EyHqI-dLpJ0zSU3lD?usp=sharing (I also added the datasheet of the FD-Q50C just in case)

If someone has any idea of how I can do read those data I would be glad to hear it.