Siemens SITRANS F M Intermag 2, Руководство по эксплуатации

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Operation
5-46
SITRANS FM Intermag 2 Flow Transmitter
Operating Manual - A5E00102775-03
Bit
1
Bit
0
Profile designation Meaning
0 0 O.K. Measured value within the limit values (normal state)
0 1 low limited Measured value has dropped below the lower limit (alarm,
warning or sensor limit)
1 0 high limited Measured value has exceeded upper limit (alarm, warning or
sensor limit)
1 1 constant Measured value remains constant
Table 5-9 Formats of the limit bits
Limit bits can only be clearly evaluated in combination with the
quality information!
The following combinations of the values of the status byte described
above are possible in normal operation (i.e. when the input value of
the function block concerned incl. status is not simulated:
Value
Meaning applies to
hex
quality substatus limits flow
total
net
total
forw.
total
rev.
1F bad out of service constant X
0F bad device failure constant X
0C bad device failure O.K. X X X
11 bad sensor not connected constant X X X X
07 bad configuration error constant X
00 bad non specific O.K. X X X X
52 uncertain sensor conversion not accurate high limited X X X X
51 uncertain sensor conversion not accurate low limited X X X X
4F uncertain initial value constant X
4B uncertain substitute set constant X
47 uncertain last usable value constant X
8E good active critical alarm high limited X X X X
8D good active critical alarm low limited X X X X
8A good active advisory alarm high limited X X X X
89 good active advisory alarm low limited X X X X
84 good active update event O.K. X X X X
80 good O.K. O.K. X X X X
Table 5-10 Valid combinations of the status byte
The status conditions in Table 5-10 have descending order of priority
from top to bottom. If several status conditions are satisfied, the
current status with the highest priority is reported.