Vaisala DPT145 - Manual (Page 39)

Chapter 5 _________________________________________________________________ Operation
VAISALA ________________________________________________________________________ 39
Set Measurement Output Format
Use the serial line command FORM to change the measurement message
sent by the transmitter. You can freely define the output message to
include the desired parameters, formatting options, text strings, and
additional fields.
FORM [modifier string]
where
modifier string = String of parameters and modifiers that defines the
output format, length 1 ... 153 characters.
Maximum length may be shorter when text strings
are used. See Table 6 and Table 7 on page 40, and
examples below.
You can return to the default format using the "FORM /" command.
Example of default output (continuous output from RUN mode):
Tdf= 8.1 'C Tdfatm= 8.2 'C H2O= 10870 ppm P= 1.002 bara
Pnorm= 0.992 bara Rhoo= 6.0 kg/m3 T= 22.8 'C
Tdf= 8.1 'C Tdfatm= 8.2 'C H2O= 10878 ppm P= 1.002 bara
Pnorm= 0.992 bara Rhoo= 6.0 kg/m3 T= 22.8 'C
...
Command to set output format as Tdf and P with Modulus-256
checksum:
form 3.1 "Tdf=" Tdf U3 3.3 "P=" P " " U4 " " CS2 \r \n
Output example:
Tdf= 12.5'C P= 0.949 bara 72
Tdf= 12.5'C P= 0.950 bara 6A
...
Command to set output format as Tdf and P, with start of text (ASCII
character 002) and end of text (003) ASCII codes, and without line feed
and carriage return at the end:
form #002 3.1 "Tdf=" Tdf U3 3.3 "P=" P " " U4 #003
Output example (ASCII codes not visible here):
Tdf= 11.6'C P= 0.952 baraTdf= 11.6'C P= 0.951 baraTdf=
11.6'C P= 0.951 baraTdf= 11.6'C P= 0.950 baraTdf= 12.5'C
P= 0.951 baraTdf= 12.3'C P= 0.952 bara
...