RevPi Connect SE Sensor Connection
Posted: 08 Mar 2024, 08:36
Hey RevPi Community,
I am currently using a RevPi Connect SE, which is connected via the RS485 serial port to a measurement sensor. I have verified the wire connection, and it appears to be correct. However, I am facing an issue where I am not receiving any sensor data. I followed the instructions for the Modbus-RTU Slave and created a Node-Red flow, but unfortunately, there is no debugging information available. Although it worked temporarily, I now encounter an access denied error when typing /dev/ttyRS485 in the command line.
Could someone assist me with this issue?
Thank you in advance!
I am currently using a RevPi Connect SE, which is connected via the RS485 serial port to a measurement sensor. I have verified the wire connection, and it appears to be correct. However, I am facing an issue where I am not receiving any sensor data. I followed the instructions for the Modbus-RTU Slave and created a Node-Red flow, but unfortunately, there is no debugging information available. Although it worked temporarily, I now encounter an access denied error when typing /dev/ttyRS485 in the command line.
Could someone assist me with this issue?
Thank you in advance!