Xylem WTW DIQ/S 281, Руководство по эксплуатации

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DIQ/S 281 Outputs
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6.6.3 Sensor monitoring
Function The
Sensor monitoring
function enables the monitoring of sensor errors and the
maintenance condition.
In order to set up the
Sensor monitoring
function for a relay output, the relay out-
put must be linked with the sensor (see section 6.4).
Settings
Sensor messages include errors and information that are registered by the sen-
sor.
Special
sensor errors
The special sensor errors are sensor-dependent. Details of this are given in the
component operating manual of the respective sensor.
General
Sensor errors
Setting Selection Explanation
Error Special
Special sensor errors are monitored and can
prompt a relay action.
All
All sensor errors (special ones and general
ones) are monitored and can prompt a relay
action.
Off
Sensor errors are not monitored.
Mainten. Condi-
tion On
Off
Switching on and off the maintenance
condition (see section 4.8) is monitored and
can prompt a relay action.
Action Open
Close
Relay action (see section 6.6.1)
Preferably set up the relay output for monitoring functions as an
opener (
Action Open
, see section 6.6.1).
Init
This can prompt a relay action for a short time, depending on
the starting behavior of the system
----
Invalid measured value, or defective sensor
Error
Communication with sensor interrupted
OFL
Measuring range undercut or exceeded (overflow)