Teledyne GFC-7000T - Trace CO2 Analyzer - manual - Manual (Page 164)

Operating Instructions Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 146
6.15.2. Remote Operation Using the External Serial I/O
6.15.2.1. Terminal Operating Modes
The Model GFC 7000TA can be remotely configured, calibrated or queried for stored data through the
serial ports. As terminals and computers use different communication schemes, the analyzer supports
two communicate modes specifically designed to interface with these two types of devices.
 Computer mode is used when the analyzer is connected to a computer with a dedicated interface
program such as APICOM. More information regarding APICOM can be found in later in this or on
the Teledyne Instruments website at http://www.teledyne-api.com/software/apicom/.
 Interactive mode is used with a terminal emulation programs such as HyperTerminal or a “dumb”
computer terminal. The commands that are used to operate the analyzer in this mode are listed in
Table 6-26.
6.15.2.2. Help Commands in Terminal Mode
Table 6-26: Terminal Mode Software Commands
COMMAND Function
Control-T Switches the analyzer to terminal mode (echo, edit). If mode flags 1 & 2 are OFF, the interface
can be used in interactive mode with a terminal emulation program.
Control-C Switches the analyzer to computer mode (no echo, no edit).
CR
(carriage return)
A carriage return is required after each command line is typed into the terminal/computer. The
command will not be sent to the analyzer to be executed until this is done. On personal
computers, this is achieved by pressing the ENTER button.
BS
(backspace)
Erases one character to the left of the cursor location.
ESC
(escape)
Erases the entire command line.
? [ID] CR This command prints a complete list of available commands along with the definitions of their
functionality to the display device of the terminal or computer being used. The ID number of
the analyzer is only necessary if multiple analyzers are on the same communications line, such
as the multi-drop setup.
Control-C Pauses the listing of commands.
Control-P Restarts the listing of commands.