Teledyne gfc 7000ta COM Port Communication Modes, Com Port Communication Modes, MODE1 Description

Operating Instructions Model GFC7000TA Carbon Dioxide Analyzer

6.11.5. COM Port Communication Modes

Each of the analyzer’s serial ports can be configured to operate in a number of different modes, listed in Table 6-10 which can be combined by adding the mode ID numbers. For example, quiet mode, computer mode and internet-enabled mode would carry a combined mode ID of 11, the standard configuration on the GFC 7000TA COM2 port. Note that each COM port needs to be configured independently.

		Table 6-10: Com Port Communication Modes
MODE1	ID	DESCRIPTION
QUIET		Quiet mode suppresses any feedback from the analyzer (DAS reports, and warning

1messages) to the remote device and is typically used when the port is communicating with a computer program such as APICOM. Such feedback is still available but a command must be issued to receive them.

COMPUTER	2	Computer mode inhibits echoing of typed characters and is used when the port is
		communicating with a computer program, such as APICOM.
SECURITY	4	When enabled, the serial port requires a password before it will respond. The only
		command that is active is the help screen (? CR).
HESSEN	16	The Hessen communications protocol is used in some European countries. Teledyne
PROTOCOL		Instruments part number 02252 contains more information on this protocol.
E, 7, 1		When turned on this mode switches the com port settings
		from
	2048	No parity; 8 data bits; 1 stop bit
		to
		Even parity; 7 data bits; 1 stop bit
RS-485	1024	Configures the COM2 Port for RS-485 communication. RS-485 mode has precedence
		over multidrop mode if both are enabled.
MULTIDROP	32	Multidrop protocol allows a multi-instrument configuration on a single communications
PROTOCOL		channel. Multidrop requires the use of instrument IDs.
ENABLE	64	Enables to send a modem initialization string at power-up. Asserts certain lines in the
MODEM		RS-232 port to enable the modem to communicate.
ERROR	128	Fixes certain types of parity errors at certain Hessen protocol installations.
CHECKING2
XON/XOFF	256	Disables XON/XOFF data flow control also known as software handshaking.
HANDSHAKE2
HARDWARE	8	Enables CTS/RTS style hardwired transmission handshaking. This style of data
HANDSHAKE		transmission handshaking is commonly used with modems or terminal emulation
		protocols as well as by Teledyne Instrument’s APICOM software.
HARDWARE	512	Improves data transfer rate when on of the com ports.
FIFO2
COMMAND	4096	Enables a command prompt when in terminal mode.
PROMPT

1Modes are listed in the order in which they appear in the SETUP  MORE  com  COM[1 OR 2]  MODE menu

2The default sting for this feature is ON. Do not disable unless instructed to by Teledyne Instruments Customer Service personnel.

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