Siemens SITRANS F M TRANSMAG 2 - Page 97

Profibus Communication
B.4 Input Data (from Slave to Master)
SITRANS F M TRANSMAG 2
Operating Instructions, 11/2009, A5E00102775-07
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Table B- 3 Formats of the quality bits
Bit
7
Bit
6
Profile Designation Meaning
0 0 bad Useless measured value
0 1 uncertain Uncertain measured value
1 0 Good (not cascade) Measured value OK
Table B- 4 Formats of the substatus bits
Bit
5
Bit
4
Bit
3
Bit
2
Profile Designation Meaning
0 0 0 1 configuration error Error in parameterization, i.e. upper and lower value
for measuring or output scale identical
0 0 1 0 not connected Sensor error or sensor not connected
0 0 1 1 device failure RAM or EEPROM defective;diagnostic bit "Memory
error" is set additionally and diagnostic message
"RAM error"
or "EEPROM error" displayed locally
0 1 1 1 out of service Corresponding function block is in "Out of service"
mode (see parameter "MODE_BLK actual")
0 0 0 0 non specific Immersion check:
at least one electrode not immersed
last usable value Failsafe operation: current measured value replaced
by the last good measured value
0 0 1 0 sunstitute set Failsafe operation: current measured value replaced
by the agreed failsafe valuet
0 1 0 0 initial value Failsafe operation or state before first measurement:
actual measured value replaced by start value
0 1 0 0 sensor conversion
not accurate
Measured value is outside the sensor limits
O.K. Measured value is OK (normal state)
0 0 0 1 update event A parameter with memory attribute "static" was
changed locally or by PROFIBUS
0 0 1 0 active advisory alarm Upper warning limit exceeded or lower warning limit
dropped below
0 1 0 0 active critical alarm Upper alarm limit exceeded or alarm limit dropped
below
Table B- 5 Formats of the limit bits
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)