YSI IQ S ENSOR N ET Field bus linking - Manual (Page 34)

Encoded data for field bus communication IQ S ENSOR N ET Field bus linking
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5.2 Sensor status
The sensor status applies to both the main and secondary measured
value of a sensor.
Code Status Meaning of the status
00h UNUSED_ID Sensor and sensor number are not available in the IQ S ENSOR N ET
system.
The measured value status of the main and secondary measured
value is MISSING (4h) (see section 5.6 M
EASURED VALUE STATUS ).
The UNUSED_ID status also occurs when the field bus interface of
the IQ S
ENSOR N ET does not receive any data from the
IQ S ENSOR N ET controller for more than 2 minutes. Possible cause:
Communication malfunction or controller failure. The data transmitted
last remain frozen for the two minutes delay time.
01h INACTIVE The sensor is currently inactive. The sensor number (ID) and respec-
tive setting dataset are available in the IQ S
ENSOR N ET system. The
sensor was removed from the IQ S ENSOR N ET system or the commu-
nication does not work.
The measured value status of the main and secondary measured
value is MISSING (4h) (see section 5.6 M
EASURED VALUE STATUS ).
The measured value display on the terminal indicates Init or Error.