Looking to purchase this sensor, SKU 314990633, but I need to know whether the default MODBUS communications parameters can really be changed. The datasheet (https://files.seeedstudio.com/wiki/Dissolved-Oxygen-Sensor/Datasheet-Dissolved_Oxygen_Sensor.pdf) says they can, but does not provide any detail as to how to achieve this.
Page 7 of the datasheet reads:
“Sensing data and communication parameters can be obtained or modified by Modbus commands.” and notes that the factory default communication parameters are:
Address 55(DEC), baud rate 9600bps, 1 start bit, 8 data bits, no parity, 1 stop bit
I can see that I can change the address by writing to register 0x2002, but how do I change the baud rate and parity?