Campbell SAT ARGOS Manual do Utilizador Página 167

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ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 159
Unlike the regular CCSAIL Sensor, no Sensor Input Channel is specified for
the Asynchronous CCSAIL Sensor so that ZENOSOFT
®
can receive data
from the remote CCSAIL sensor over any COM port.
To receive data from a remote CCSAIL sensor asynchronously, the remote CCSAIL sensor’s CCSAIL
address MUST be the same as the configured address in the Sensor Menu. Further, the destination
address in the asynchronous message MUST match the ZENO
®
-3200 Primary Unit ID, configured in the
System Functions Menu.
180
Since asynchronous CCSAIL messages are comprised of data only and since
there may be more than one asynchronous CCSAIL sensor on a multi-drop
communications link, ZENOSOFT
®
does not transmit a response to the
messages.
SDI-12 Sensor Specifics
SDI-12 Sensors are always RS485 and communicate at 1200 baud. Up to 16 addressable SDI-12 Sensors
can be configured on a single ZENO
®
-3200. The number of floating-point data values collected is
specified by Line Item #10. The address of the SDI-12 Sensor is specified by Line Item #17.
The procedure for collecting data from an SDI-12 Sensor is follows:
The ZENO
®
-3200 transmits an aM! command to the SDI-12 Sensor with address a. This command
instructs the SDI-12 Sensor to start its measurement. The SDI-12 Sensor responds with
180
Refer to Section 5.5.
Rem ote Asynchronous
CCSAIL Sensor #1
Rem ote Asynchronous
CCSAIL Sensor #2
Rem ote Asynchronous
CCSAIL Sensor #3
ZENO-3200
Asynchronous Data Messages
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