Activity › Forums › Questions & Troubleshooting › Inline flow sensor not sending data to Controllino Mega › Reply To: Inline flow sensor not sending data to Controllino Mega
-
Hi Barrels,
at first to the Modbus. Before you start the integration of the sensor with the CONTROLLINO, please try to control the sensor from a PC with RS485-USB converter and some Modbus RTU Master application. You will easily fine proper registry numbers and meanings etc.
To the analog measurement. You cannot directly connect current loop 4-20 mA to CONTROLLINO analog input. You should use external 500 Ohm resistor to convert it to voltage suitable for the CONTROLLINO analog input.
Good luck!
Lukas