Changing the settings (aSU) - WXT530

You can change the following settings:

• Parameters included in the supervisor data message
• Update interval
• Error messaging on/off
• Heating control

Change the setting with the following command. Select the correct value/letter for the setting fields.

Command format in ASCII and NMEA 0183:

aSU,R=x,I=x,S=x,H=x<cr><lf>

Command format in SDI-12;

aXSU,R=x,I=x,S=x,H=x!

R, I, S, H	The supervisor setting fields
x	Value for the setting
<cr><lf>	Command terminator in ASCII and NMEA 0183
!	Command terminator in SDI-12

Example (ASCII and NMEA 0183, device address 0):

Disabling the heating and error messaging:

0SU,S=N,H=N<cr><lf>

0SU,S=N,H=N<cr><lf>

Example (SDI-12, device address 0):

Changing the update interval to 10 seconds:

0XSU,I=10!0<cr><lf>

In SDI-12 mode a separate enquiry (0XSU!) must be given to check the data content.