31
Ultrasonic Sensors
8.1.4 Condition Monitoring Functions
8.1.4.1 Status Message Function
The sensor provides various status messages. Due to the process data structure, four status messages can
be transmitted as individual process data.
These parameters can be used to set the status messages that are transmitted via the process data.
Function
Possible Settings
Default
Message 1
See table
Warning signal
Message 2
See table
Short circuit
Message 3
See table
Undervoltage
Message 4
See table
No signal
8.1.4.2 Warning/Error Output Function
The status messages used to trigger the collective message can be defined for the warning output and the
error output respectively. The status messages are OR-linked so that the output is activated when one of the
defined status messages is activated.
Function
Possible Settings
Default
Warning output See table
Signal warning,
undervoltage
Error output
See table
No signal, ob-
ject too close,
object too wide,
short circuit,
device error
Status Messages
Warnings
Warning signal The object reflects too little sound (weak signal).
Undervoltage
The supply voltage is too low.
Emitter off
The emitter of the sensor is switched off.
Error
No signal
The sensor is not receiving a signal. The error can occur, for example, due to:
• Strong air turbulence
• Ultrasonic sources too strong in the measuring range
• Very small or poorly reflective (sound-absorbing) objects are located within the working
range.
• Incorrect installation
Object too
close
The object is below the setting range or the set measuring range.
Object too far
The object is above the setting range or the set measuring range.