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Teledyne API - Model 200EH/EM Operation Manual Operating Instructions
151
While Hessen Protocol Mode can be activated independently for COM1 and COM2, The
TYPE selection affects both Ports.
6.15.4.4. 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 6-28: M200EH/EM 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:
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
SAMPLE ENTER SETUP PASS : 818
8 1 8 ENTR EXIT
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SAMPLE RANGE = 500.000 PPB SO2 =XXX.X
< 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: TYPE 1
SET> EDIT EXIT
SETUP X.X HESSEN RESPONSE MODE :CMD
BCC TEXT EDIT ENTR EXIT
Press to
change
response
mode.
ENTR key accepts the
new settings
EXIT key ignores the new
settings
04521C (DCN5731)