Accubar SDI-12 Barometric Pressure Sensor Operations & Maintenance Manual Rev-B 30 Nov 2017
pg. 9
Verifying the Address and Operation
The ACCUBAR
®
will respond with an identifying message when it receives the
send identification
command, I. The format of the command is:
aI!
Where a is the address for the ACCUBAR
®
.
The ACCUBAR
®
will reply with
a13 SUTRON BARO-12.1sssssssBvvvv
a
13
SUTRON
BARO-1
2.1
sssssss
Bvvvv
Where:
SDI-12 address
supports SDI version 1.3 commands
manufacturer SUTRON
Accubar model number
hardware revision level
sensor serial number
the software revision
If you do not get a reply, check the address setting for the ACCUBAR
®
and make sure you use the proper
address for the sensor.
Commands (Overview)
The commands to set up and operate the ACCUBAR
®
are those defined by the SDI specifications 1.0 plus
some extended commands defined by Sutron. All commands start with a single-character address and
end in an exclamation point. The address is a single character with values 0 to 9, :;<=> ?, A to Z, and a to
z. Values are entered in the form of a polarity (+ or -) sign followed by up to seven digits, including a
decimal point. The commands are in ASCII and all the replies use printable ASCII characters followed by
<CR> <LF>.
The ACCUBAR
®
replies to all SDI commands it supports. If the ACCUBAR
®
receives a command it does not
support, no reply is made. The reply will have one of two forms:
a0000
where a is the address and the 0000 indicates that
there is no further message to send
or
