Xylem H-340SDI - Manual (Page 29)

H-340SDI
SDI-12 Command and Response Protocol 2-15
Example of a H340SDI extended "Set Time" command:
Command Response Time Values Description
------------- -------------------- ------- -------- -------------------------------
"aXSDRT230537" "a0013"
1 sec 3 Set daily reset time to 23:05:37
Subsequent Command Response
--------------------------- ------------------------------------
"aD0" a+23+05+37
2.17 Extended “Set Daily Reset Time” Command
The H-340SDI automatically resets the daily accumulations a certain time each day. For example,
one day may be calculated from 6:00 AM of one day to 6:00 AM of the next day. This command
sets the time of day at which the reset is scheduled.
Command Response Description
------------- ------------------------- -----------------------------
"aXSDRThhmmss!" "a0013" Set daily reset time
Where:
a is the sensor address ("0-9", "A-Z", "a-z", "*", "?").
XSDRT are upper case characters.
hhmmss is the new time in HOURS:MINUTES:SECONDS (24-Hour format).
Use fixed format. For example 010233 for 01:02:33
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.
2.18 Extended “XTEST” Command
This command is primarily used for production testing and requires the use of a H-419 or SDI-12
verifier and a PC. This command causes the H-340 to transmit unsolicited real-time data for testing
purposes. This is not compliant with the SDI-12 specification and is not used with data loggers.
To activate the test mode, first send the command “aXTEST!”, then enter the verifier’s MONITOR
mode. Whenever a bucket tip occurs, the H-340 now transmits the time between bucket tips and the
adjusted rainfall for the bucket tip. This test mode may be used to help troubleshoot the installation
by providing a continuous readout of bucket tip timing and rainfall. The test mode is exited by