Vaisala WMT700 - Manual (Page 55)

Chapter 5 ______________________________ Operating WMT700 with WS425 and SDI-12 profiles
VAISALA _______________________________________________________________________ 53
WS425 A/B NMEA Extended Commands
This command polls data from WMT700.
$WIPQ,*
where
$WIP =
Fixed text
= Data ID; A … Z
Q = Fixed text
* = Fixed text
= Checksum (8-bit XOR, excluding $ and *)
= Carriage return code, ASCII 0DH
= Line feed code, ASCII 0AH
Table 16 Checksum Table
ID Character Checksum Polling String
A 72
$WIPAQ,*72
B 71 $WIPBQ,*71
C 70 $WIPCQ,*70
D 77 $WIPDQ,*77
E 76
$WIPEQ,*76
F 75 $WIPFQ,*75
G 74 $WIPGQ,*74
H 7B
$WIPHQ,*7B
I 7A $WIPIQ,*7A
J 79 $WIPJQ,*79
K 78 $WIPKQ,*78
L 7F $WIPLQ,*7F
M 7E $WIPMQ,*7E
N 7D
$WIPNQ,*7D
O 7C $WIPOQ,*7C
NOTE To use WMT700 with the NMEA Extended profile, either set the
autoSend parameter to 0 to enable polling or define a fixed output
interval with the autoInt parameter. If you are using automatic messages,
the value for the autoSend parameter must be set to 19.