Xylem SDI-12 RADAR - Manual (Page 32)

xx...xx is an optional field of up to a maximum of 13 characters to be used for serial number
or other specific sensor information not relevant to operation of the data recorder.
SDi-12 CommaND & reSPoNSe
30
example of a “aI!” command:
“a12 Daa H-3611vvvS#nnnnnnVkkk”
radar implementation of the optional 13 character field:
S#nnnnnnVkkk (12 bytes total)
where:
“nnnnnn is a six character sensor serial number
“kkk” is a three digit sensor firmware revision level
The Change Sensor address Command allows the sensor address to be changed. The address is
stored in non-volatile eeProm within the sensor. The radar 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” 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”).
NoTe: To verify the new address use the “identify Command.”
Change Sensor address Command
example of a “Change sensor address” command:
Command response Description
“aa2! “2” Change sensor address to “2”