Modifier
Description
CS2
Modulus-256 checksum of message sent so far, ASCII encoded
hexadecimal notation
CS4
Modulus-65536 checksum of message sent so far, ASCII encoded
hexadecimal notation
CSX
NMEA xor-checksum of message sent so far, ASCII encoded
hexadecimal notation
FORM Command Examples
You can return to the default format using the "
FORM /
" command.
Example of default output (continuous output from RUN mode):
Tdf= -9.80 'C Tdfatm= -9.80 'C H2O= 2618 ppm
Tdf= -9.80 'C Tdfatm= -9.80 'C H2O= 2617 ppm
...
Command to set output format as Tdf and ppm with Modulus-256 checksum:
form 3.2 "Tdf=" Tdf U3 6.0 "H2O=" H2O " " U5 CS2 \r \n
Output example:
Tdf= -9.74'C H2O= 2632 ppm C4
Tdf= -9.72'C H2O= 2636 ppm C6
...
Command to set output format as Tdf and ppm, 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 3.2 "Tdf="Tdf U3 6.0 "H2O=" H2O " " U5 #003
Output example (ASCII codes not visible here):
Tdf= -9.57'C H2O= 2671 ppm Tdf= -9.59'C H2O= 2666 ppm
Tdf= -9.61'C H2O= 2662 ppm Tdf= -9.62'C H2O= 2660 ppm
...
7.8.2 Set Measurement Filtering
Use the
FILT
command to view or set the speed at which the latest measurement result is
integrated into the output readings. The command affects both analog output and serial line
output.
FILT
[a.aaaaa]
<cr>
Chapter 7 – Serial Communication
53
Summary of Contents for DRYCAP DMT143
Page 1: ...M211435EN J User Guide Vaisala DRYCAP Dew Point Transmitter DMT143...
Page 85: ...Appendix A Modbus Reference 83...
Page 86: ...DMT143 User Guide M211435EN J 84...
Page 88: ...DMT143 User Guide M211435EN J 86...
Page 89: ......
Page 90: ...www vaisala com...