Vaisala LT31 - Message 6 - FD12 Message 7

User's Guide ______________________________________________________________________
178 _________________________________________________________________ M210667EN-C
The total amount of characters in the message is 40. The transmission
times are: 1.3 s at 300 bps (10-bit char), 0.17 s at 2400 bps, 0.04 s at
9600 bps.
Message 6 - FD12 Message 7
The FD12 message 7 emulation mode is selected with the
SET MESSAGE TYPE FD12MSG7 command.
NOTE
Present weather values are available only when a valid PW-Option-
Keyword has been entered (refer to the SET PW_OPTION command
string shown in Table 11 on page 150). If no valid keyword has been
entered, the present weather values are replaced by a slash / (ASCII 47).
The message format of the emulated Vaisala FD12 message number 7 is
presented below:
Message with framing:
!FD A"00 10000 10000 L 52 61 61 0.33 12.16 0 13.2 01000-*
-*
-*
#-*
Message contents:
00 10000 10000 L 52 61 61 0.33 12.16 0 13.2 01000
-----BL cd/m2
----- TS temperature
---- cumulative snow sum
------ cumulative water sum
------ precipitation water intensity, mm/h
-- one hour present weather code, 0 . . . 99
-- 15 minute present weather code, 0 . . . 99
-- instant present weather code, 0 . . . 99
--- instant present weather, NWS codes
----- visibility ten minute average
----- visibility one minute average
- 1=hardware error, 2 = hardware warning
- data status 0 = normal, (FD12 alarm limits not supported)
, Empty row
, Empty row
The total amount of characters in the message is 74. The transmission
times are: 2.5 s at 300 bps (10-bit char), 0.31 s at 2400 bps, 0.08 s at
9600 bps.
Message 7 consists of three lines. The measured background luminance
value will be displayed in cd/m
2
only if LM21 is attached to LT31.