Xylem H-4280 - Manual (Page 14)

3-2 SDI-12 Command and Response Protocol H-4280
3.1 Master SDI-12 Command List
Standard SDI-12 commands
Command Description
aM! Make Measurement
aC! Make Concurrent Measurement
aD0! and aD1! Send Data
aV! Verify Sensor
aI! Send Identification
Extended SDI-12 commands unique to the H-4280
Command Description
aAn! Change sensor address
aXRCn! Read configuration of channel n
aXWCn! Write configuration of channel n
aXSCSn ddd! Set current “stage” of channel n
aXRSn! Read Slope of channel n
aXWSn ddd! Write Slope of channel n
aXROn! Read Offset of channel n
aXWOn ddd! Write Offset of channel n
aXRMC! Read Mean_Count
aXWMCnnn! Write Mean_Count
aXRPM! Read Power_Mode
aXWPMn! Write Power_Mode
aXRWT! Read Warmup_Time
aXWWTnnn! Write Warmup_Time
aXTEST! Initiate a repeating test printout