Selecting A Hessen Protocol Type; Setting The Hessen Protocol Response Mode - Teledyne T101 Operation Manual

Teledyne ML – T101 Operation Manual

5.1.4.4. Selecting a Hessen Protocol Type

SAMPLE RANGE = 500.0 PPB
< TST TST > CAL
SAMPLE ENTER SETUP PASS : 818
8 1 8
PRIMARY SETUP MENU
SETUP X.X
CFG DAS RNGE PASS CLK
SECONDARY SETUP MENU
SETUP X.X
COMM VARS DIAG ALRM
While Hessen Protocol Mode can be activated independently for COM1 and COM2, The

5.1.4.5. Setting The Hessen Protocol Response Mode

Table 5-7. T101 Hessen Protocol Response Modes
MODE ID
CMD
This is the Default Setting. Reponses from the instrument are encoded as the traditional
command format.
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.
Currently there are two version of Hessen Protocol in use. The original implementation,
referred to as TYPE 1, and a more recently released version, TYPE 2 that 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 ML web site:
http://www.teledyne-ml.com/manuals/index.asp
To select a Hessen Protocol Type press:
H2S =XXX.X
SETUP
ENTR EXIT
MORE EXIT
EXIT
Press to change
protocol type.
TYPE selection affects both Ports.
The Teledyne ML's implementation of Hessen Protocol allows the user to choose one of
several different modes of response for the analyzer.
Style and format of responses depend on exact coding of the initiating
.
SETUP X.X COMMUNICATIONS MENU
ID HESN COM1 COM2
EXIT
SETUP X. HESSEN VARIATION: TYPE 1
SET> EDIT
SETUP X.X HESSEN VARIATION: TYPE 1
TYPE1 TYPE 2
ENTR EXIT
SETUP X.X HESSEN VARIATION: TYPE 2
PREV NEXT OFF
NOTE
MODE DESCRIPTION
Remote Operation
EXIT
ENTR accepts the new
settings
EXIT ignores the new
settings
ENTR EXIT
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