H-340 sdi – Xylem H-340SDI User Manual
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H-340SDI
SDI-12 Command and Response Protocol 2-13
Example of a H340SDI extended "Get Time" command:
Command
Response
Time Values
Description
-------------
---------------------
------- --------
-------------------------------
"aXGT!"
"a0013<cr><lf>"
1 sec 3
Get current time of day
Subsequent Command
Response
---------------------------
------------------------------------
"aD0"
a+HH+MM+SS<cr><lf>
Where:
HH
= Hours (24 hour format)
MM
= Minutes
SS
= Seconds
2.15 Extended “Set Time” Command
The H-340SDI has a built-in real time clock. This command allows the user to change the current
time of day.
Command
Response
Description
-------------
-------------------------
-----------------------------
"aXSTHHMMSS!"
"a0013<cr><lf>"
Set time of day
Where:
a
is the sensor address ("0-9", "A-Z", "a-z", "*", "?").
XST are upper case characters.
HHMMSS
is the new time in Hours:Minutes:Seconds (24-Hour format)
This command takes 001 seconds to complete and places 3 values in the data buffer. Use the “aD0"
command to collect and view the data.