STX WD PPPPPPPPPPPP CS ETX CR LF
STX
ASCII start of test control character (position 1)
WD
Command identifier (positions 2,3)
P or F Pass/Fail for 12 built in tests specified in WS command above in the order shown in the
WS command text (positions 4-15) except Thermistor temperature.
CS
Modulo 256 hexadecimal checksum of all characters from position 2 through the last P
or F (positions 16,17)
EXT
ASCII end of text control character (position 18)
CR
ASCII carriage return control character (position 19)
LF
ASCII line feed control character (position 20)
5.21.1.5 WF - Return Fixed Pattern of Data
The WF command returns a fixed pattern of data. This command can be used to verify the
communications link. The command format is:
WF CR LF
The data fields are fixed at the following values:
Status
F
Wind direction
678
Peak wind direction
567
Wind averaging time
21
Peak wind averaging time
09
Wind speed
876.5
Peak wind speed
432.1
Example of WF output:
WFF6785672109876.5432.1K99xx
5.21.2
WS425 F/G ASOS Data Message
WMT700 responds to the WA command with a data message.
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