are there modbus commands to calibrate the SEN0603?
Jeff.Tucker 2025-05-17 00:20:39 292 Views2 Replies are there modbus commands to calibrate the SEN0603?
2025-05-20 10:38:34 
Tonny12138
The SEN0603’s EC and pH calibration are both performed via Modbus “Write Single Register” (Function Code 0x06). The relevant registers are:
EC Calibration Register
Address: 0x0052
Modbus Register Number: 40083
Access: Read/Write
Usage: Write an integer value to set the new EC calibration constant.
pH Calibration Register
Address: 0x0053
Modbus Register Number: 40084
Access: Read/Write
Tonny12138 Tonny12138
wrote:
2025-05-20 10:38:40 1 Replies
Write an integer value to set the new pH calibration constant.
To calibrate, simply send a Function 0x06 request targeting 0x0052 (for EC) or 0x0053 (for pH) with the desired integer value. After writing, you can verify the stored value by issuing a “Read Holding Registers” (Function 0x03) request to the same register.
