
Teledyne ML - T100 UV Fluorescence SO2 Analyzer
Remote Operation & Advanced Features
167
5.3.4.5.
SETTING THE HESSEN PROTOCOL RESPONSE MODE
Teledyne ML’s implementation of Hessen Protocol allows the user to choose one of
several different modes of response for the analyzer.
Table 5-14: T100 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, access the COMM Menu (refer to Figure 5-1), then
press:
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 CMD
ENTR EXIT
Press to
change
response
mode.
ENTR
key accepts the
new settings
EXIT
key ignores the
new settings
Figure 5-31:
COMM
– Select Hessen Protocol Response Mode
5.3.4.6.
HESSEN PROTOCOL GAS ID
The T100 Analyzer is a single gas instrument that measures SO
2
. As such, its default
gas ID has already been set to
110.
There is no need to change this setting.
5.3.4.7.
SETTING HESSEN PROTOCOL STATUS FLAGS
Teledyne ML’s implementation of Hessen protocols includes a set of status bits that the
instrument includes in responses to inform the host computer of its condition. Each bit
can be assigned to one operational and warning message flag. The default settings for
these bit/flags are listed on Table 5-15:
Table 5-15: Default Hessen Status Bit Assignments
STATUS FLAG NAME
DEFAULT BIT ASSIGNMENT
WARNING FLAGS
Summary of Contents for T100
Page 2: ......
Page 4: ...Teledyne ML T100 UV Fluorescence SO2 Analyzer iv This page intentionally left blank ...
Page 6: ...Teledyne ML T100 UV Fluorescence SO2 Analyzer vi This page intentionally left blank ...
Page 10: ...Teledyne ML T100 UV Fluorescence SO2 Analyzer x This page intentionally left blank ...
Page 20: ...Teledyne ML T100 UV Fluorescence SO2 Analyzer xx ...
Page 21: ...21 PART I GENERAL INFORMATION ...
Page 77: ...77 PART II OPERATING INSTRUCTIONS ...
Page 78: ...Getting Started Teledyne ML T100 UV Fluorescence SO2 Analyzer 78 ...
Page 207: ...207 PART III TECHNICAL INFORMATION ...
Page 208: ...208 06807A DCNxxxx ...
Page 210: ...210 06807A DCNxxxx This page intentinally left blank ...
Page 362: ...APPENDIX B T100 Spare Parts List T100 Instruction Manual B 2 068070000 Rev A ...
Page 370: ...APPENDIX D ELECTRONIC SCHEMATICS T100 Instruction Manual D 2 068070000 Rev A ...