Operating Instructions Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 156
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SETUP X.
COMMUNICATIONS MENU
ID INET HESN COM1 COM2 EXIT
SETUP X. HESSEN VARIATION: TYPE 1
SET> EDIT EXIT
SETUP X.X HESSEN VARIATION: TYPE 1
TYE1 TYPE 2 ENTR EXIT
SETUP X.X HESSEN VARIATION: TYPE 2
PREV NEXT OFF ENTR EXIT
Press to change
protocol type.
ENT
accepts the new
settings
EXIT ignores the new
settings
NOTE
While Hessen Protocol Mode can be activated independently for COM1 and COM2,
The TYPE selection affects both Ports.
6.15.4.5. Setting The Hessen Protocol Response Mode
The Teledyne Instruments implementation of Hessen Protocol allows the user to choose one of several
different modes of response for the analyzer.
Table 6-30: Teledyne Instruments Hessen Protocol Response Modes
MODE ID MODE DESCRIPTION
CMD
This is the Default Setting. Reponses from the instrument are encoded as the traditional command
format. Style and format of responses depend on exact coding of the initiating command.
BCC
Responses from the instrument are always delimited with <STX> (at the beginning of the response,
<ETX> (at the end of the response followed by a 2 digit Block Check Code (checksum), regardless
of the command encoding.
TEXT
Responses from the instrument are always delimited with <CR> at the beginning and the end of the
string, regardless of the command encoding.
