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V- Firmware version number
S- Firmware Serial#
I- Unit ID number
C- Unit responds with a daily minimum and maximum of all parameters, then clears. The rainfall
rate is present rather than term rain.
Sample
MIN 07/24/90 SW 00MPH 070F 067F 067F 054% 30.00" 00.19"D 01.38"M 00.00"R
MAX 07/24/90 SSE 25MPH 052F 071F 092F 099% 30.06" 00.19"D 01.38"M 00.72"R
c- Unit responds with a daily minimum and maximum of all parameters, then clears. The term rain is
present rather than rainfall rate.
Sample
MIN 07/24/90 SW 00MPH 070F 067F 067F 054% 30.00" 00.19"D 01.38"M 00.00"T
MAX 07/24/90 SSE 25MPH 052F 071F 092F 099% 30.06" 00.19"D 01.38"M 00.72"T
The minimum and maximum associated with the C command is cleared automatically at midnight
D- Unit responds in an identical manner as the C command but does not clear the system memory.
d- Unit responds in an identical manner as the c command but does not clear the system memory
E or e- Unit responds with minimum and maximums along with date and time of occurrence. This
uses the same buffer as the c and d command.
M- Unit responds with all minimums and maximums with the date and time of their occurrence, then
clears.
m- Unit responds in an identical manner as with the M command but does not clear the system
memory.
Sample
TA 10:33 038F TA 09:32 056 F
TO 04:15 075F TI 15:03 080 F
TO 10:33 038F TO 16:10 056 F
RH 15:44 033% RH 01:40 060 %
BP 16:11 29.57” BP 10:20 30.15"
RD 04/29 00:00“ RT 01:00"
RM 03.32“ WS 00:00 000 MPH 048
The system has two completely separate memory buffers (C and M commands).
R- Unit responds with current conditions. The rainfall rate is present rather than the term rain. (Note:
in 30.04R the “R” denotes rising pressure)
Sample
5:15 07/24/90 SSE 04MPH 052F 069F 078F 099% 30.04R 00.19"D 01.38"M 11.78"T
r- Unit responds with current conditions. The term rain is present rather than the rainfall rate. (Note:
in 30.04F the “F” denotes falling pressure, a “S” character denotes steady pressure.)
Sample
5:15 07/24/90 SSE 04MPH 052F 069F 078F 099% 30.04F 00.19"D 01.38"M 00.72"R
K- Unit responds with current calculated values, for dew point, Windchill and heat index.
Twi_Log Program
WR-25 Instruction Manual
Texas Weather Instruments, Inc. WR-25 Instruction Manual