Справочник Пользователя для Teledyne gfc 7000ta
Operating Instructions
Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments
158
6.15.4.7. Setting Hessen Protocol Status Flags
Teledyne Instruments’ 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 6-31: Default Hessen Status Bit 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 WARNING
0020
SAMPLE PRESSURE WARNING
0040
INVALID CONC
(The Instrument’s Front Panel Display Will Show The
Concentration As “XXXX”)
(The Instrument’s Front Panel Display Will Show The
Concentration As “XXXX”)
0080
OPERATIONAL FLAGS
Instrument Off
0100
In Manual Calibration Mode
0200
In Zero Calibration Mode
0400
In Span Calibration Mode
0800
UNITS OF MEASURE FLAGS
UGM 0000
MGM 2000
PPB 4000
PPM 6000
SPARE/UNUSED BITS
100, 1000, 8000
UNASSIGNED FLAGS (0000)
Sync Warning
Relay Board Warning
Conc Alarm 1
Analog Cal Warning
Conc Alarm 2
Cannot Dyn Zero
Photo Temp Warning
Cannot Dyn Span
System Reset
Invalid Conc
Rear Board Not Detected
NOTES:
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.
Be careful not to assign conflicting flags to the same bit as each status bit will be
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.