Photoelectric distance sensor
OMH551 OMH553 OMH555
7
4 Function
4.1 Switching off the laser
The laser can be switched off via the input on pin 5 and via IO-Link.
Input signal on pin 5
Laser
PNP
NPN
Low / not used
High / not used
On
High
Low
Off
4.2 Operating modes
4.2.1 Operation
The sensor measures the distance and outputs it as an analogue value. The measuring range is
determined with two points. The start point of the measuring range is set to [MIN] and the end point of
the measuring range is set to [MAX].
4.2.2 IO-Link
IO-Link is a communication system for connecting intelligent sensors and actuators to automation
systems. IO-Link is standardised in the IEC 61131-9 standard.
General information on IO-Link at
Input Output Device Description (IODD) with all parameters, process data and detailed
descriptions of the device at
IO-Link offers the following advantages:
•
Interference-free transmission of all data and process values
•
Parameter setting in the running process or presetting outside the application
•
Parameters for identifying the connected devices in the system
•
Additional parameters and diagnostic functions
•
Automatic backup and restore of parameter sets in case of device replacement (data storage)
•
Logging of parameter sets, process values and events
•
Device description file (IODD - Input Output Device Description) for easy project planning
•
Standardised electrical connection
•
Remote maintenance
