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Teledyne GFC-7000E - Trace CO2 Analyzer User Manual

Page 97

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Model GFC7000E Instruction Manual

Operating Instructions

04584 Rev A1

86

Table 6-16: COMM Port Communication modes

MODE

1

ID

DESCRIPTION

QUIET

1

Quiet mode suppresses any feedback from the analyzer (iDAS reports, and
warning messages) 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

PROTOCOL

16

The Hessen communications protocol is used in some European countries.
Teledyne Instruments part number 02252 contains more information on this

protocol.

E, 7, 1

2048

When turned on this mode switches the COMM port settings
from

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

PROTOCOL

32

Multidrop protocol allows a multi-instrument configuration on a single
communications channel. Multidrop requires the use of instrument IDs.

ENABLE

MODEM

64

Enables to send a modem initialization string at power-up. Asserts certain
lines in the RS-232 port to enable the modem to communicate.

ERROR

CHECKING

2

128

Fixes certain types of parity errors at certain Hessen protocol installations.

XON/XOFF

HANDSHAKE

2

256

Disables XON/XOFF data flow control also known as software handshaking.

HARDWARE

HANDSHAKE

8

Enables CTS/RTS style hardwired transmission handshaking. This style of

data transmission handshaking is commonly used with modems or terminal
emulation protocols as well as by Teledyne Instrument’s APICOM software.

HARDWARE

FIFO

2

512

Improves data transfer rate when on of the COMM ports.

COMMAND

PROMPT

4096

Enables a command prompt when in terminal mode.

1

Modes are listed in the order in which they appear in the

SETUP Æ MORE Æ COMM Æ COM[1 OR 2] Æ MODE menu

2

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

Customer Service personnel.