Teledyne t320u Manuale Utente
Teledyne API – Model T300/T300M CO Analyzer
Communications Setup and Operation
165
6.7.3.4. SETTING HESSEN PROTOCOL STATUS FLAGS
Teledyne API’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:
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:
Table 6-6: Default Hessen Status Flag Assignments
STATUS FLAG NAME
DEFAULT BIT ASSIGNMENT
WARNING FLAGS
SAMPLE FLOW WARNING
0001
BENCH TEMP WARNING
0002
SOURCE WARNING
0004
BOX TEMP WARNING
0008
WHEEL TEMP WARNING
0010
SAMPLE TEMP WARN
0020
SAMPLE PRESS WARN
0040
INVALID CONC
(The Instrument’s Front Panel Display Will Show The
Concentration As “Warnings”)
Concentration As “Warnings”)
0080
OPERATIONAL FLAGS
1
Instrument OFF 0100
In MANUAL Calibration Mode
0200
In ZERO Calibration Mode
4
0400
In
O
2
Calibration Mode (if
O
2
sensor installed )
2,4
0400
In
CO
2
Calibration Mode (if
CO
2
sensor installed )
2,4
0400
In SPAN Calibration Mode
0800
UNITS OF MEASURE FLAGS
UGM
0000
MGM
2000
PPB
4000
PPM
6000
SPARE/UNUSED BITS
1000, 8000
UNASSIGNED FLAGS (0000)
AZERO WARN
2
DCPS WARNING
CANNOT DYN SPAN
2
REAR BOARD NOT DET
CANNOT DYN ZERO
3
SYNC
WARNING
1
CONC ALARM 1
3
SYSTEM RESET
1
CONC ALARM 2
3
1
These status flags are standard for all instruments and should probably not be modified.
2
Only applicable if the optional internal span gas generator is installed.
3
Only applicable if the analyzer is equipped with an alarm options.
3
It is possible to assign more than one flag to the same Hessen status bit. This allows the grouping of
similar flags, such as all temperature warnings, under the same status bit.
similar flags, such as all temperature warnings, under the same status bit.
Be careful not to assign conflicting flags to the same bit as each status bit will be triggered if any of the
assigned flags is active.
assigned flags is active.
06864B DCN6314