14
6.3 External illumination unit
The external illumination unit is connected to switching output 2 of the device� The
illumination unit is active as long as switching output 2 is in the "high" state�
Example
Article number
Illumination unit, transmitter red light 630 nm
O2D909
An adapter cable (Y cable) is available for external illuminations: www�ifm�
com
6.4 External trigger source
An external trigger source is connected to the trigger input of the device (e�g�
diffuse reflection sensor)�
6.4.1 Timing diagram
Fig� 7: Triggering on positive edge� Evaluation time t
A
: 50���200 ms
Output
Standard
External illumination Process
interface
Switching output
1 (OUT 1)
ready signal
ready signal
selectable via
command
0:
1:
device busy
device ready for
trigger signal
0:
1:
device busy
device ready for
trigger signal
Switching output
2 (OUT 2)
code evaluation
trigger output
0:
1:
code evaluation
not successful
code evaluation
successful