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Remote Operation Teledyne API – T101 Operation Manual
160
5.1.4.7. 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:
Table 5-8. Default Hessen Status Bit Assignments
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
triggered if any of the assigned flags is active.
STATUS FLAG NAME DEFAULT BIT
ASSIGNMENT
WARNING FLAGS
SAMPLE FLOW WARNING 0001
PMT DET WARNING 0002
UV LAMP WARNING 0002
HVPS WARNING 0004
DARK CAL WARNING 0008
RCELL TEMP WARNING 0010
IZS TEMP WARNING 0020
PMT TEMP WARNING 0040
CONV TEMP WARNING 1000
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 0080, 8000
UNASSIGNED FLAGS
Box Temp Warning Analog Cal Warning
Sample Press Warning Cannot Dyn Zero
System Reset Cannot Dyn Span
Rear Board Not Detected Invalid Conc
Relay Board Warning
07266B DCN6485