Table 7-2: SDI-12 commands
SDI-12
1
command
Values returned or
function
Units
Max. sensor
response time
(sec)
aI!
a14CampbellWtrSen SN=nnnnn
SDI-12 address: a
SDI-12 version: 14 (version 1.4)
vendor: Campbell
model: WtrSen
SN = Serial number (5 digits)
0
aV!
1. Hardware version
2. Status
1. N/A
2. 0 = no error
1 = contact
Campbell
Scientific for
repair
0
?!
SDI-12 address
0
aAb!
Change address command; b is the
new address
0
aHA!
,
aHB!
a000000
High volume commands not
supported
aXWEM+nn.nn!
Write emissivity
aXREM!
Read emissivity
1
aXLOADOS!
Sends the new OS to the sensor. Refer
to
1
Where a = address of SDI-12 device. In the
SDI12Recorder()
instruction, the command parameter does not
include the SDI-12 address because the address is entered in a separate parameter.
Wintersense SDI-12
11