Light curtains CML700i

Measuring light curtain with integrated control unit and interfaces for even simpler operation

Flexibility inside

In the CML 700i, both the control unit and the interfaces are integrated in the receiver unit—this makes additional devices completely unnecessary. Parameterization is performed directly via the control unit which stores the parameters and allows units to be swapped out without parameterization needing to be carried out again. A large number of interfaces—and now also PROFIBUS and RS485—are already integrated.

An alignment mode and a bar graph display showing the receiving level in the display are integrated to permit fast and reliable alignment.
A very short response time of 10 and 30 µ seconds per beam means that extremely fast processes can be detected and measured reliably.

Thanks to the optional plug outlet, the CML 700i can be installed on and in the system very flexibly. The extremely small blind area of
23 mm allows additional CML 700i units to be cascaded for measurement lengths of more than 3 m.

The most important advantages at a glance



Your success is already included with these functions

Beam stream

Serial outout of each individual beam. The data are available via the CANopen fieldbus interface or via IO-Link.


Suppression of beams that are not included in the evaluation.

Web funcion

Center or edge control of a web via switching outputs; alternatively, a warning message can be output if nominal value limits are exceeded.


In order to read the beam states with one 16-bit or 32-bit word virtually “all at once”, it is possible to assign the beams to up 32 groups. Each group is then represented as 1bit.

Hold function

This function can be used to hold the measurement value for a specified time until retrieved by superior control.


Any number of light curtains with different numbers of beams can be cascaded without mutually interfering with one another. The light curtains can be configured as master/slave.

Hole recognition

Integrated evaluation logic for detecting holes in a web and for signaling via the switching output.


By means of this signal preprocessing, it is possible to only evaluate measurement data if a minimum object size was reached. It is also possible to specify that, within a web, only holes with a minimum size are output.

Beam functions

In parallel beam operation, each light beam is detected directly by the mutually opposing received. In diagonal beam operation, each light beam is detected alternately by both the directly opposing receiver as well as by the receiver directly adjacent to it. In cross-beam operation, each light beam is alternately detected by both the directly opposing received as well as by the two receivers adjacent to it.



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