Campbell Scientific CSAT3 CSAT3 3-D Sonic Anemometer - Page 28

SDMAddress/SDM Address, Command/Option 90, Command/Option 91, Command/Option 92, Command/Option 97,

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CSAT3 Three Dimensional Sonic Anemometer CAUTION SDMAddress/SDM Address: The unique SDM Address of the CSAT3 connected to the datalogger. In CRBasic dataloggers, the CSAT3 address is entered as a base ten number. In EDLOG dataloggers, the CSAT3 address is entered as a base four number (see TABLE 3-1). The SDM Address is sequentially incremented if the Reps option is greater than 1. The wind data and the speed of sound (sonic virtual temperature) is scaled by the instruction into m s-1 and degrees Celsius. SDM address 15 (base 10)/33 (base 4) is a special address used during a Group Trigger. Do not program the datalogger to address SDM address 15/33. Command/Option 90: "Trigger and Get Wind & c Data" sends a measurement trigger to the CSAT3 whose SDM address is specified in SDMAddress/SDM Address parameter. The CSAT3 also sends data to the datalogger. Command/Option 91: "Trigger and Get Wind & Ts Data" sends a measurement trigger to the CSAT3 whose SDM address is specified in the SDMAddress/SDM Address parameter. The CSAT3 also sends wind speed and sonic virtual temperature (defined in Equation (9) in Appendix C) via the SDM bus to the datalogger. Command/Option 92: "Trigger and Get Wind & c-340 Data" sends a measurement trigger to the CSAT3 whose SDM address is specified in SDMAddress/SDM Address parameter. The CSAT3 also sends wind speed and the speed of sound minus 340 m s-1 via the SDM bus to the datalogger. Command/Option 97: "Get Wind and c-340 Data After a Group Trigger". The CSAT3, specified in SDMAddress/SDM Address parameter, sends wind speed and the speed of sound minus 340 m s-1 to the datalogger. A new measurement is not triggered. The CSAT3 ()/SDM-CSAT3 (P107) Instruction must be preceded by the SDMTrigger/Group Trigger (P110) Instruction to use this option. Command/Option 98: "Get Wind and Ts Data After a Group Trigger". The CSAT3, specified in SDMAddress/SDM Address parameter, sends the wind speed and sonic virtual temperature (defined in Equation (9) in Appendix C) to the datalogger. A new measurement is not triggered. The CSAT ()/SDMCSAT3 (P107) Instruction must be preceded by the SDMTrigger/Group Trigger (P110) Instruction to use this option. Command/Option 99: "Get Wind and c Data After a Group Trigger". The CSAT3, specified in SDMAddress/SDM Address parameter, sends the wind speed and speed of sound to the datalogger. A new measurement is not triggered. The CSAT3 ()/SDM-CSAT3 (P107) Instruction must be preceded by the SDMTrigger/Group Trigger (P110) Instruction. 20

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CSAT3 Three Dimensional Sonic Anemometer
SDMAddress/SDM Address:
The unique SDM Address of the CSAT3
connected to the datalogger.
In CRBasic dataloggers, the CSAT3 address is
entered as a base ten number.
In EDLOG dataloggers, the CSAT3 address is
entered as a base four number (see TABLE 3-1).
The SDM Address is
sequentially incremented if the Reps option is greater than 1.
The wind data and the speed of sound (sonic virtual temperature) is scaled by
the instruction into m s
-1
and degrees Celsius.
SDM address 15 (base 10)/33 (base 4) is a special
address used during a Group Trigger. Do not program
the datalogger to address SDM address 15/33.
Command/Option 90:
“Trigger and Get Wind & c Data” sends a
measurement trigger to the CSAT3 whose SDM address is specified in
SDMAddress/SDM Address parameter.
The CSAT3 also sends data to the
datalogger.
Command/Option 91:
“Trigger and Get Wind & T
s
Data” sends a
measurement trigger to the CSAT3 whose SDM address is specified in the
SDMAddress/SDM Address parameter.
The CSAT3 also sends wind speed
and sonic virtual temperature (defined in Equation (9) in Appendix C) via the
SDM bus to the datalogger.
Command/Option 92:
“Trigger and Get Wind & c-340 Data” sends a
measurement trigger to the CSAT3 whose SDM address is specified in
SDMAddress/SDM Address parameter.
The CSAT3 also sends wind speed
and the speed of sound minus 340 m s
-1
via the SDM bus to the datalogger.
Command/Option 97:
“Get Wind and c-340 Data After a Group Trigger”.
The CSAT3, specified in SDMAddress/SDM Address parameter, sends wind
speed and the speed of sound minus 340 m s
-1
to the datalogger.
A new
measurement is not triggered.
The CSAT3 ()/SDM-CSAT3 (P107) Instruction
must be preceded by the SDMTrigger/Group Trigger (P110) Instruction to use
this option.
Command/Option 98:
“Get Wind and Ts Data After a Group Trigger”.
The
CSAT3, specified in SDMAddress/SDM Address parameter, sends the wind
speed and sonic virtual temperature (defined in Equation (9) in Appendix C) to
the datalogger.
A new measurement is not triggered.
The CSAT ()/SDM-
CSAT3 (P107) Instruction must be preceded by the SDMTrigger/Group
Trigger (P110) Instruction to use this option.
Command/Option 99:
“Get Wind and c Data After a Group Trigger”.
The
CSAT3, specified in SDMAddress/SDM Address parameter, sends the wind
speed and speed of sound to the datalogger.
A new measurement is not
triggered.
The CSAT3 ()/SDM-CSAT3 (P107) Instruction must be preceded
by the SDMTrigger/Group Trigger (P110) Instruction.
CAUTION
20