Electrical connection
Leuze electronic GmbH + Co. KG
BCL 308
i
67
Switching input/output
The bar code readers of the BCL 300
i
series are equipped with two freely programmable, opto-decoupled
switching inputs and outputs, SWIO_1 and SWIO_2.
The switching inputs can be used to activate various internal functions of the BCL 308
i
(decoding, auto
-
Config, …). The switching outputs can be used to signal the state of the BCL 308
i
and to implement
external functions independent of the superior control.
Described in the following is the external wiring for use as a switching input or output; the respective func
-
tion assignments to the switching inputs/outputs can be found in Chapter 10.
Function as switching input
Figure 7.8: Switching input connection diagram SWIO_1 and SWIO_2
If you use a sensor with a standard M12 connector, please note the following:
• Pins 2 and 4 must not be operated as switching outputs if sensors which function as inputs are also
connected to these pins.
If, for example, the inverted sensor output is connected to pin 2, and pin 2 of the bar code reader is, at the
same time, configured as an output (and not as an input), the switching output malfunctions.
Function as switching output
Figure 7.9: Switching output connection diagram SWIO_1 / SWIO_2
7.3.2 SENSOR - direct connection of an external sensor (ME 308 xx4 only)
Connection hoods ME 308 104 and ME 308 214 are equipped with an M8 connection cable for the direct
connection of an external sensor (e.g., a trigger sensor)
NOTE
The respective function as input or output can be set with the aid of the webConfig configuration
tool!
ATTENTION!
The maximum input current must not exceed 8 mA!
ATTENTION!
Each configured switching output is short-circuit proof! Do not load the respective switching
output of the BCL 308
i
with more than 60 mA at +18 … +30 V DC in normal operation!
NOTE
Both switching inputs/outputs SWIO_1 and SWIO_2 are configured by default in such a way that:
• Switching input SWIO_1 activates the reading gate.
• Switching output SWIO_2 switches by default on "No Read".
Switching input
Switching output
from controller
(deactivated)
Switching input
to controller
Switching output
Switching output
from controller
Switching input
to controller (de
-
activated)
