In-Situ Aqua TROLL 400 Modbus and SDI-12 Reference Guide - Manual (Page 16)

Name Command Response
Start Concurrent
Start Concurrent CRC
Send Data
Additional Data
aC!
aCC!
aD0!
aD1! … aD9! a004nn
nn parameters will be available for reading by the Send
Data command within 4 seconds. No service request
will be sent when the parameters are ready. The
number of parameters returned is determined by the
SDI-12 configuration file in the same manner as a Start
Measurement command.
a or
a
The number and type of parameters returned is
determined by the SDI-12 configuration file in the same
manner as a Start Measurement command.
a or
a
The number and type of parameters returned is
determined by the SDI-12 configuration file in the same
manner as a Start Measurement command.
Additional Concurrent
Additional with CRC
Send Data
Additional Data
aC1! … aC9!
aCC1! … aCC9!
aD0!
aD1! … aD9! a00000
No additional concurrent measurements are started by
the device.
a or
a
No values are returned after an additional Concurrent
Measurement command.
Continuous Measurement
Continuous with CRC
aR0! … aR9!
aRC0! … aRC9! a
No values shall be returned after a Continuous
Measurement command.
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