Campbell Scientific CSAT3 CSAT3 3-D Sonic Anemometer - Page 59

CSAT3 Binary Data Output Format

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Appendix B. Serial Communications with the CSAT3 Nassi-Shneiderman diagrams are given in FIGURE B-1and FIGURE B-2 for collecting data using a PC and the RS-232 port. In FIGURE B-1, the PC is the Trigger Source and the data acquisition system. In FIGURE B-2, the anemometer is triggered by its internal timer and a PC is the data acquisition system. Use the logic in FIGURE B-1 when the CSAT3 is measured along with other analog/digital signals. FIGURE B-1. PC as the trigger source FIGURE B-2. CSAT3 as the trigger source B.2 CSAT3 Binary Data Output Format Five words are sent by the CSAT3's RS-232 output. Words 0 through 3 are 16 bit signed integers and word 4 is 16 bit unsigned integer. The five words are sent starting with word 0 and ending with word 4. A description of each word is given in TABLE B-2. B-3

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Appendix B.
Serial Communications with the CSAT3
Nassi-Shneiderman diagrams are given in FIGURE B-1and FIGURE B-2 for
collecting data using a PC and the RS-232 port.
In FIGURE B-1, the PC is the
Trigger Source and the data acquisition system.
In FIGURE B-2, the
anemometer is triggered by its internal timer and a PC is the data acquisition
system.
Use the logic in FIGURE B-1 when the CSAT3 is measured along
with other analog/digital signals.
FIGURE B-1.
PC as the trigger source
FIGURE B-2.
CSAT3 as the trigger source
B.2
CSAT3 Binary Data Output Format
Five words are sent by the CSAT3's RS-232 output.
Words 0 through 3 are 16
bit signed integers and word 4 is 16 bit unsigned integer.
The five words are
sent starting with word 0 and ending with word 4.
A description of each word
is given in TABLE B-2.
B-3