Geometrics, Inc. G-824A Magnetometer Manual
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7.2.3 Serial Data Interface
A standard RS-232 serial interface is used to communicate with the G-824A. The Port
should be set to 8 data bits, 1 stop bit, no parity, and no handshaking. Baud rate must be
set to at least 115,200 for high speed (250 Hz or faster sample rates. The same port is
used for configuration and data collection. Run the terminal emulator software and
configure it as described in section 7.3 to setup and collect G-824A data.
7.3 Detailed configuration descriptions:
The following sections contain examples of different G-824 setups. The first section
illustrates how to setup the Tera Term terminal emulation program in order to
communicate with the G-824. The following sections show examples of various
configurations with different baud rates, sample rates, and output variables. By following
though the different configurations you will be able to see the pattern necessary to create
your own desired output format.
7.3.1 Tera Term, Terminal Emulator Program Setup
Install the terminal program and configure to the proper parameters for communication with
the G-824. The following is a snapshot of the main page of the Tera Term Program.
If another terminal program is being used, these same settings (115200 baud, N, 8, 1) should
be used for the initial setup.
Tera Term displays a choice of TCP/IP or Serial connections at start up. Click on the Serial
radio button and select the correct port from the Port: drop down list.
Tera Term defaults to 9600 Baud, 1 Start Bit, 8 Data Bits, and No Parity upon startup.
