Vaisala GMP231 - Manual (Page 33)

Chapter 4 ____________________________________________________ Vaisala Industrial Protocol
VAISALA ________________________________________________________________________ 31
Show Command List
Use the HELP command to show a list of the currently available serial
commands.
HELP<cr>
Example (shows basic commands, advanced commands are not enabled):
CLOSE
ECHO
ENV
ERRS
FORM
HELP
INTV
PASS
R
RESET
S
SDELAY
SEND
SERI
SMODE
SNUM
STANDBY
SYSTEM
TIME
VERS
Serial Line Output Commands
Start Measurement Output
Use the R command to start the continuous outputting of measurement
values as an ASCII text string to the serial line.
R<cr>
Example (measurement message in default format):
r
CO2= 490 ppm
CO2= 490 ppm
CO2= 491 ppm
CO2= 491 ppm
CO2= 491 ppm
...
The probe keeps outputting measurement messages at the interval that
has been set INTV command until stopped.