Vaisala Hydromet Data Collection Platform - Manual (Page 124)

User's Guide ______________________________________________________________________
122 _________________________________________________________________ M210933EN-C
Digital Barometer
The default communication parameters for the PTB330 sensor are as
follows:
The sensor commands for the interface configuration are as follows:
To get a suitably formatted data output from the digital barometer, the
following message format string must be given using the FORM
command. The string is almost of maximum length allowed, so do not
insert any extra spaces. Proceed as follows:
1. Type FORM . This command outputs the current format
string and prompts
?
for a new one.
2. Copy the string below to the terminal and press .
#001 "PTB" ADDR #002 ERR " " 4.2 P " " P3H " " A3H "
" P1 " " P2 " " P3 #003 CS4 #rn
Parameter Value
Speed 9600 bps
Parity even
Data bits 7
Stop bits 1
Handshake XON/XOFF
Operation Command(s) Description
Set polled SMODE POLLED Sets sensor to polled operation
Set auto tx INTV
SMODE RUN Select transmit interval to
, for example, 10 s. Sets
sensor to automatic transmit
mode.
Set format FORM See the detailed explanation
below.
Set ID ADDR Sets device id for polled
operation. = 0 ... 99
Activate param RESET New parameters are taken into
use after reset.
NOTE After configuring the sensor, enter the RESET command in order for
the changes to take effect.