Xylem 627379-01, User Manual

Page: 14 / 44

14
Baud Rate and Parity
The baud rate and parity is set simultaneously using a single register write command (function code 0x06) of address 0x0001. The
upper byte defines the parity, and the lower byte defines the baud rate from a list of standards.
Parity
None 0x00
Odd 0x01
Even 0x02
Baud Rate
9600 0x00
19200 0x01
38400 0x02
57600 0x03
115200 0x04
Request
Function Code 1 byte 0x06
Register Address 2 bytes 0x0001
Register Value 2 bytes 0x0200
Request
Function Code 1 byte 0x03
Register Address 2 bytes 0x0001
Register Value 2 bytes 0x0001
Response
Function Code 1 byte 0x06
Register Address 2 bytes 0x0001
Register Value 2 bytes 0x0200
Response
Function Code 1 byte 0x03
Register Address 2 bytes 0x0002
Register Value 2 bytes 0x0200
Error
Error Code 1 byte 0x86
Exception Code 1 bytes 0x03 (Illegal Data Value)
The serial configuration can also be read using a read holding registers command (function code 0x03) of address 0x0000.
Modbus Configuration & Commands