Xylem H-3531 FlashLite - Manual (Page 64)

5-26 SDI-12 Command and Response Protocol
H-3531
5.20.5 H-355 Read/Write Auto Purge Enable Command
This command is for reading the current auto purge enable and also for editing the auto
purge enable. The user can change the auto purge enable. Refer to H-355 Gas Purge
System manual for more details.
Command Response Description
“aXRAP!” “a0051” Read Auto Purge Enable
“aXWAPn!” “a0051” Write Auto Purge Enable
Where: a is the sensor address ("0-9", "A-Z", "a-z", "*", "?").
XRAP are upper case characters.
XWAP are upper case characters.
n is the auto purge enable value(0 = disabled, 1 = enabled).
This command takes 005 seconds to complete and places 1 value in the data buffer. Use
the “aD0" command to collect and view the current value.
Example of a H-3531 Extended "Read Auto Purge Enable" command:
Command
Response Time Values Description
"aXRAP!" "a0051" 5 sec 1 Read Auto Purge Enable
Command Response Description
"aD0!" "a+0" 0 = Auto Purge Disabled
Example of a H-3531 Extended "Write Auto Purge Enable" command:
Command
Response Time Values Description
"aXWAP1!" "a0051" 5 sec 1 Write Auto Purge Enable
Command Response Description
"aD0!" "a+1" 1 = Auto Purge Enabled