Xylem H-3551 - Manual (Page 31)

H-3551
SDI-12 Command and Response Protocol 5-13
5.15 Extended “XHELP” Command
This command is used for installation and testing and requires the use of a H-4191 Sidekick
interface and a PC. This command causes the H-3551 to display a listing of the supported SDI-12
commands. This is not compliant with the SDI-12 specification and is not used with data loggers.
An example of the “XHELP” printout is shown below:
H-3551 SDI-12 Commands:
M Initiate Purge (aM!)
M1 Make measurement (aM1!)
(TankPSI:LinePSI:Temperature:SysBat:PumpBat)
M2 Make measurement (aM2!)
(TankPSI:TankTemp:TankVp:TankVt:LinePSI:LineTemp:LineVp:LineVt)
D Send Data (aD0!)
V Verify (aV!)
I Send Identification (aI!)
! Send Acknowledge (a!)
An Change Address (aAn!)
Extended Commands:
XRBR Read bubble rate
XWBRnn Write bubble rate
XRPP Read purge pressure
XWPPnn Write purge pressure
XRPT Read purge time
XWPTnn Write purge time
XTPM Test pump motor
XTPV Test purge valve
XTZV Test auto-zero valve
XCOPT Test COP timer
XTEST Make repeating measurements
XHELP Print this listing