Campbell Scientific CS451/CS456 Pressure Transducer - Manual (Page 23)

CS451/CS456 Submersible Pressure Transducer
When using a CR200(X), the SDI12Recorder() instruction has the following
syntax:
SDI12Recorder(Destination,OutString,Multiplier,Offset)
For the other CRBasic dataloggers, the SDI12Recorder() instruction has the
following syntax:
SDI12Recorder(Destination, SDIPort, SDIAddress, “SDICommand”,
Multiplier, Offset)
7.4.2 Edlog Programming
Edlog dataloggers read the CS451/CS456 using the SDI-12 Recorder (P105)
instruction.
Please note that Edlog only allocates one input location for the SDI-12
Recorder (P105) instruction. Two input locations are required for the SDI-12
M! command. The additional input locations need to be inserted manually
using the Input Location Editor. To get into the Input Location Editor, select
Edit/Input Labels or press the F5 key. Once in the Input Location Editor,
do the following:
1. Choose Edit/Insert Block.
2. After the Insert Block dialog box appears, type in a base name for the
input locations. Each input location will have the base name with an
underscore and a consecutive number.
3. In the Start Address field, type in the number of the first input location.
4. In the Number of InLocs field, type in 2 and select OK.
8. Operation
8.1 Configuration
TABLE 8-1 shows default settings of the CS451/CS456.
TABLE 8-1. Factory Settings
SDI-12 Address 0
RS-232 Baud Rate 9600
Pressure/Level Units psig
Temperature Units
Celsius
Communicating with the CS451/CS456 requires the sensor to be either
connected to a PC or to an SDI-12 recorder. The sensor typically connects to a
PC via the A200 sensor to PC interface. Many SDI-12 recorders allow
communication to the sensor via a terminal screen. Configurable settings can
be changed via SDI-12 commands or by using Campbell Scientific’s software
Device Configuration Utility.
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