User’s Guide ______________________________________________________________________
108 _________________________________________________________________ M211840EN-C
The response:
a+<data fields><cr><lf>
Examples of aM, aC and aD
Commands
where
a = Device address
<data
fields>
= The measured parameters in selected units, separated
with '+' marks (or - marks in case of negative
parameter values).
<cr><lf> = Response terminator
NOTE
aD0 command can also be used to break the measurement in progress
started with commands aM, aMC, aC, or aCC.
NOTE
In SDI-12 v1.3 Continuous measurement mode (aXU,M=R) the
sensor makes measurements at configurable update intervals. The aD
command following the aM, aMC, aC, or aCC command always
returns the latest updated data. Thus in aXU,M=R mode issuing
consecutive aD commands can result in different data strings if the
value(s) happen to be updated between the commands.
NOTE
The parameter order in messages is as follows:
Wind (M1): Dn Dm Dx Sn Sm Sx
PTU (M2): Ta Tp Ua Pa
Rain (M3): Rc Rd Ri Hc Hd Hi Rp Hp
Supv (M5): Th Vh Vs Vr Id
Comp (M): Wind PTU Rain Supv (parameters in above order)
The order of the parameters is fixed, but you can exclude any
parameter from the list when configuring the transmitter.
To Next Page
Loading...
