Sensor Monitoring - wtw DIQ/S 182-MOD System Operating Manual

Relay outputs
Function
Settings
Special
sensor errors
General
sensor errors
6 - 16

6.4.3 Sensor monitoring

The Sensor monitoring function enables to monitor sensor errors and
the maintenance condition.
In order to set up the Sensor monitoring function for a relay output, the
relay output must be linked with a sensor (see section 6.2.1).
Setting
Errors
Mainten. condition
Action
Note
Preferably set up the relay output as an opener for monitoring
functions.
Sensor messages include errors and information that are registered by
the sensor.
The special sensor errors are sensor-dependent. Details of this are
given in the component operating manual of the respective sensor.
Init 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)
Selection Explanation
All All sensor errors (special ones
and general ones) are
monitored and can prompt a
relay action.
Special Special sensor errors are
monitored and can prompt a
relay action.
Off Sensor errors are not
monitored.
On Switching on and off the
Off maintenance condition is
monitored and can prompt a
relay action.
Open For all functions of the Sensor
monitoring, the relay action is
set to Open.
System 182
ba75504e07 04/2012