MSB780(X) - User’s Guide
8.3 SDI-12 commands set
Table 17: MSB780 SDI-12 commands
MSB780 SDI-12 Commands
Command Short description Page
?!
Address query command.
74
a!
Acknowledge active command.
73
aAb!
Address change command.
74
aC!
Start concurrent measurement command.
74
aD0!
Send data command.
75
aI!
Send identification command.
74
aM!
Start measurement command.
74
aM1!
Start measurement command, return also HQFE, HQNH
75
aR0!
Continuous measurement in basic units.
75
aR1!
Continuous measurement in user units.
76
aV!
Get verification.
76
aXD1!
Send data command from transducer 1.
76
aXD2!
Send data command from transducer 2.
76
aXD3!
Send data command from transducer 3.
76
aXV!
Get extended verification.
77
aXHQFE<v>m!
Set HQFE to value <v> m
78
aXHQNH<v>m!
Set HQNH to value <v> m
78
aXTQFE<v><u>!
Set TQFE to value <v>, unit <u> (C, F, K)
78
aXHHCP<v><u>!
Set HHCP to value <v>, unit <u>
78
aXDPMAX<v><u>!
Set DPMAX to value <v>, unit <u> (hPa, inHg, psi, torr,
bar, mbar, mmHg, kPa, Pa, mmH2O, inH2O)
78
aXK1<v>!
Set k1 adjusting coefficient to value <v>
78
aXK2<v>!
Set k2 adjusting coefficient to value <v>
78
aXK3<v>!
Set k3 adjusting coefficient to value <v>
78
aXQ1<v>!
Set q1 adjusting coefficient to value <v>
78
aXQ2<v>!
Set q2 adjusting coefficient to value <v>
78
aXQ3<v>!
Set q3 adjusting coefficient to value <v>
78
8.4 a! Acknowledge Active Command
This command is used to ensure that a sensor is responding to a data recorder or another
SDI-12 device. It asks a sensor to acknowledge its presence on the SDI-12 bus.
Example:
0!<cr>0<cr><lf>
73