KROHNE OPTIWAVE 7300C PROFIBUS PA - Manual (Page 8)

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OPERATION
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OPTIWAVE 7300 C
www.krohne.com 02/2010 - 4000621701 - AD PROFIBUS PA OPTIWAVE 7300
4.1.3 Status data
A measurement value has a 4-byte value and a 1-byte status. Status data is given in the table
that follows:
Status data
CAUTION!
Monitor the status of the device. The device transmits a measurement value when the device
status is "good", "uncertain" or "bad". The status will tell you if the device measures correctly.
Quality Quality-Substatus Limits
General
Gr Gr QS QS QS QS Qu Qu
2 7 2 6 2 5 2 4 2 3 2 2 2 1 2 0
0 0 = bad
0 1 = uncertain
1 0 = good (non Cascade)
Status = bad
0 0 0 0 0 1 = configuration error
0 0 0 0 1 1 = device failure
0 0 0 1 0 0 = sensor failure
0 0 0 1 1 1 = out of service
Status = uncertain
0 1 0 0 0 1 = last usable value
0 1 0 1 1 0 = sub-normal 1
Status = Good / limits
1 0 0 0 1 0 0 0 = Good - no alarm
1 0 0 0 1 0 0 1 = Good - below low limit
1 0 0 0 1 0 1 0 = Good - above high limit
1 0 0 0 1 1 0 1 = Good - Lo-Lo
1 0 0 0 1 1 1 0 = Good - Hi-Hi
1 0 0 0 1 0 1 1 = Constant output
1 0 1 0 0 1 = maintenance required
1 if it is possble that the value is not accurate (for example, the spectrum quality is not sufficient to get a good signal),
this status is shown