What its not

A project log for WIERD PROTOCOL

Trying to communicate with a device with an undocumented protocol

GabrielGabriel 03/11/2019 at 21:570 Comments

As clearly seen by the log, the pattern repeats, changing only where the "Data" should be. there are 2 parameters being logged by this sensor.

I thought this was straight modbus since the device already supports modbus, and the physical layer seems to be 485, but its not.

I thought it might be CAN over 485, but its not.

I thought it could be Profibus but you guessed it... its not.