H-335 – Xylem H-335 User Manual
Page 25

H-335
SDI-12 Command and Response Protocol 2-9
Example of a "Change Sensor Address" command:
Command
Response
Description
"aA2!"
"2<cr><lf>"
Change sensor address to "2"
2.9 Change Sensor Address
The Change Sensor Address Command allows the sensor address to be changed. The address is stored in
non-volatile EEPROM within the sensor. The H-335 will not respond if the command was invalid, the address
was out of range, or the EEPROM programming operation failed.
Command
Response
Description
"aAn!"
"n<cr><lf>"
Change sensor address
Where:
a
is the current (old) sensor address ("0-9", "A-Z", "a-z", "*", "?"). An ASCII "*"
may be used as a "wild card" address if the current address is unknown and only one
sensor is connected to the bus.
A
is an upper-case ASCII character.
n
is the new sensor address to be programmed ("0-9", "A-Z", "a-z", "*", "?").
NOTE: To verify the new address use the "Identify Command."