Vaisala WXT520 - Manual (Page 99)

Chapter 7 __________________________________________________ Getting the Data Messages
VAISALA_______________________________________________________________________ 97
The response format:
$WIXDR,a1,x.x1,u1,c--c1, ... ... ..an,x.xn,un,c--cn*hh<cr><lf>
NOTE The parameter order in the output is as shown in the parameter
selection setting field, see Chapter 8, sections Setting the Fields.
where
$
= Start of the message
WI = Device type identifier (WI = weather instrument)
XDR = Transducer measurement response identifier
a
1 = Transducer type for the first transducer, see the
following transducer table.
x.x
1 = Measurement data from the first transducer
u
1 = Units of the first transducer measurement, see the
following transducer table.
c--c
1 = First transducer identification (id). WXT520's
address aXU,A is added as a base number to the
transducer id. For changing the address, see
Checking the Current Communication Settings
(aXU) on page 60
(command aXU,A= [0 ... 9/A ... Z/
a ... z]
1
.
...
an
= Transducer type for the transducer n, see the
following transducer table.
x.xn = Measurement data from the transducer n
un = Units of the transducer n measurement, see the
following transducer table.
c--cn = Transducer n id. WXT520's address aXU,A is added
as a base number to the Transducer #ID. The address
is changeable, see command aXU,A= [0 ... 9/A ... Z/
a ... z]
1
.
* = Checksum delimiter
hh = Two-character checksum for the response
<cr><lf> = Response terminator