Vaisala WINDCAP WS425 User's Guide Page 169

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Chapter 5 _________________________________________________________________ Operation
SDI-12 Commands
Table 54 below lists the available commands for operating
WMT700 with SDI-12 profile.
NOTE
You can only use COM2 serial port for sending commands and receiving
data mes
sages with the SDI-12 profile.
Table 54 SDI-12 Commands
Command
Description
?!
Queries WMT700 for its address
a!
Ensures that WMT700 is responding
aI!
Queries WMT700 for its SDI-12 compatibility level, model number, and
firmware version number
aAb!
Changes WMT700 address
aC!
Starts concurrent measurement
aCC!
Starts concurrent measurement with CRC calculation
aD0!
Fetches instant data from WMT700
aM!
Starts measurement
aMC!
Starts measurement with CRC calculation
aV!
Starts verification
where
a
=
Single-digit WMT700 address that corresponds to the first
character of the address value
!
=
Terminates the command
NOTE
The following SDI
-12 commands cannot be used with WMT700:
Measurement Unit Change Command
aXUx!, Heater Control Command
aXHx!
, Check Current Sub mode aX?!, Place Sensor in Sub mode B
Command
aXQx;c.c;n;yyyy!, Reset the Sensor to Sub mode A
Command
aXS!, Check Current Measurement Unit Command aX*!,
aR0!
Continuous Measurement.
For a list of configuration commands for WMT700, see
Appendix A,
Complete Command Set for WMT700
, on page 195.
VAISALA _______________________________________________________________________ 167
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