Xylem H-424MS V1.0 - Manual (Page 23)

H-424MS
SDI-12 Command and Response Protocol 2-7
Example of a H-424MS Extended "Read Wake Interval" command:
Command Response Time Values Description
------------------- ------------------------ ------ --------- -----------------------------
"aXRW!" "a0011"
1 sec 1 Read Value
Command Response Description
------------------- ------------------------ -----------------------------
"aD0!" "a+15." Wake Interval is 15 seconds
2.8 Read Wake Interval and Read Inactivity Timer Commands
The Wake Interval and Inactivity Timer values control the H-424MS's power save operation. These
values can be read by the SDI-12 host with the following commands. Note only the settings of the
H-424MS which is jumpered for “Master” operation can be read.
The default values are:
Wake Interval: 15 Seconds
Inactivity Timer: 30 Seconds
Command Response Description
------------- ------------------------- -----------------------------
"aXRW!" "a0011" Read Wake Interval (seconds)
"aXRI!" "a0011" Read Inactivity Timer (seconds)
Where:
a is the sensor address ("0-9", "A-Z", "a-z", "*", "?").
XRW are upper case characters.
XRI are upper case characters.
This command takes 001 seconds to complete and places 1 value in the data buffer. Use the “aD0"
command to collect and view the value.