Vaisala WXT532 - CHAPTER 7 RETRIEVING DATA MESSAGES

Chapter 6 ________________________________________________________ Connection Options
VAISALA_______________________________________________________________________ 81
Changing the Communication
Settings (aXU)
Use this command to change communication settings. For details on the
available values, see the examples below and Setting Fields on page 79.
Command format in ASCII and NMEA 0183:
aXU,A=x,M=x,C=x,I=x,B=x,D=x,P=x,S=x,L=x<cr><lf>
Command format in SDI-12:
aXXU,A=x,M=x,C=x,I=x,B=x,D=x,P=x,S=x,L=x!
where
A, M, C, I,
B, D, P, S,L
= The communication setting fields, see Setting Fields
on page 79.
x = Input value for the setting
<cr><lf> = Command terminator in ASCII and NMEA 0183
! = Command terminator in SDI-12
NOTE
When changing the serial interface and communication protocol, note
the following:
Each serial interface requires its specific wiring and/or jumper settings
described in Chapter 5 Wiring and Power Management, on page 53.
Change first the serial interface field C and then the communication
protocol field M.
Changing the serial interface to SDI-12 (C=1) automatically changes
the baud settings to 1200, 7, E, 1 and the communication protocol to
SDI-12 (M=S).
NOTE
Reset the transmitter to validate the changes of communication
parameters by disconnecting the service cable or using the Reset
(aXZ) command. See Reset (aXZ) on page 84.