Xylem H-3531 FlashLite - Manual (Page 57)

H-3531
SDI-12 Command and Response Protocol 5-19
5.18 Extended Read Measure Rate and Write Measure Rate
When the H-3531 FlashLite™ is put in power mode 3 it makes continuous measurements based
on a measure rate. This command is for reading/writing that measure rate value. The measure
rate range is 0-255 minutes. When the user sets the measure rate to 0 then the H-3531
FlashLite™ makes continuous measurements as fast as the H-3531 FlashLite™ will measure,
which is about 6 seconds by default. The factory default is 1 minute measure rate.
Command Response Description
"aXRMR!" “a0011" Read Measure Rate
"aXWMRnnn!" “a0021" Write Measure Rate
Where: a is the sensor address ("0-9", "A-Z", "a-z", "*", "?").
XRMR are upper case characters.
XWMR are upper case characters.
nnn is the rate in minutes that the sensor will update all outputs.
Example of a H-3531 Extended "Read Measure Rate" command:
Command
Response Time Values Description
"aXRMR!" "a0011" 1 sec 1 Read Measure Rate
Command Response Description
"aD0!" "a+1" Measure Rate = 1 minute
Example of a H-3531 Extended "Write Measure Rate" command:
Command
Response Time Values Description
"aXWMR2!" "a0021" 2 sec 1 Write Measure Rate
Command Response Description
"aD0!" "a+2" Measure Rate = 2 minutes