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Operating Instructions Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 155
6.15.4.3. Activating Hessen Protocol
The first step in configuring the GFC 7000TA to operate over a Hessen protocol network is to activate the
Hessen mode for com ports and configure the communication parameters for the port(s) appropriately.
Press:
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.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
SETUP X.X COMMUNICATIONS MENU
ID INET COM1 COM2 EXIT
SETUP X.X COM1 MODE:0
SET> EDIT EXIT
Continue pressing next until …
Select which COMM
port to configure
SETUP X.X COM1 QUIET MODE: OFF
NEXT OFF ENTR EXIT
SETUP X.X COM1 HESSEN PROTOCOL : ON
PREV NEXT ON ENTR EXIT
SETUP X.X COM1 HESSEN PROTOCOL : OFF
PREV NEXT OFF ENTR EXIT
ENTR accepts the new
settings
EXIT ignores the new
settings
The sum of the mode
IDs of the selected
modes is displayed here
SETUP X.X COM1 E,7,1 MODE: ON
PR EV NEXT ON ENTR EXIT
SETUP X.X COM1 E,7,1 MODE: OFF
PREV NEXT OFF ENTR EXIT
Toggle OFF/ON to
change
activate/deactivate
selected mode.
Repeat the entire
process to set up
the COM2 port
6.15.4.4. Selecting a Hessen Protocol Type
Currently there are two versions of Hessen Protocol in use. The original implementation, referred to as
TYPE 1, and a more recently released version, TYPE 2 that has more flexibility when operating with
instruments that can measure more than one type of gas. For more specific information about the
difference between TYPE 1and TYPE 2 download the Manual Addendum for Hessen Protocol from the
Teledyne Instruments web site: http://www.teledyne-api.com/manuals/index.asp .
To select a Hessen Protocol Type press: