Teledyne T300, Operation Manual, Page: 163 / 426

Teledyne API – Model T300/T300M CO Analyzer Communications Setup and Operation
161
6.7.2.4. SETTING THE HESSEN PROTOCOL RESPONSE MODE
The Teledyne API’s implementation of Hessen Protocol allows the user to choose one of
several different modes of response for the analyzer.
Table 6-5: Teledyne API’s 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.
To select a Hessen response mode, press:
SAMPLE RANGE=50.0 PPM CO= XX.XX
<TST TST> CAL SETUP
SETUP X.X HESSEN RESPONSE MODE:CMD
<SET SET> EDIT EXIT
SETUP X.X COMMUNICATIONS MENU
ID HESN COM1 COM2 EXIT
SETUP X.X HESSEN VARIATION:TYPE1
<SET SET> EDIT EXIT
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG EXIT
SETUP X.X HESSEN RESPONSE MODE:CMD
BCC TEXT CMD ENTR EXIT
EXIT discards the new
setting.
ENTR accepts the
new setting.
Use these buttons to
choose the Hessen
Response type.
Continue pressing SET until ...
06864B DCN6314