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
Queries WMT700 for its address
Ensures that WMT700 is responding
Queries WMT700 for its SDI-12 compatibility level, model number, and
firmware version number
Starts concurrent measurement
Starts concurrent measurement with CRC calculation
Fetches instant data from WMT700
Starts measurement with CRC calculation
Single-digit WMT700 address that corresponds to the first
character of the address value
NOTE
-12 commands cannot be used with WMT700:
Measurement Unit Change Command
aXUx!, Heater Control Command
, Check Current Sub mode aX?!, Place Sensor in Sub mode B
aXQx;c.c;n;yyyy!, Reset the Sensor to Sub mode A
aXS!, Check Current Measurement Unit Command aX*!,
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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