10
english
6.1
Sensor principle
The sensor measures the damping of the internal
oscillating circuit in the presence of an electrically
conductive object.
The temperature-compensated measurement value
Proximity
can be read out in register 0x00B2. Fig. 6-1
shows two typical curves for Proximity. Sample variation
can alter the steepness of the slope and the offset. In
teach-in, the Proximity value which is set for the switching
distance is stored in
Set Point Value
(Register 0x003C).
The Proximity value can be used to obtain a qualitative
evaluation of the damping state. Since this product is a
binary switch, no quantitative conclusions about the exact
value [mm] can be derived from the Proximity value.
Due to the physical non-linearity of the damping curve, the
Proximity value over distance is also non-linear.
Fig. 6-1:
Distance to the object
Pr
oximity
Sensor 2
Sensor 1
Curve for register 0xB2
The value in
Set Point Value
is automatically
changed when a teach is performed and
must
not be manually changed!
6
Basic functions
6.2
Switch mode
The configuration for the teach-in of the switch points can
be set using
Switch Point Configuration
(Register 0x003D).
6.2.1 Switch point logic
When switch point logic is
High active
, the switching
output in normally open (NO) configuration goes to
High
when the object is present. For
Low active
, the logic is
inverted.
High active
Distance to the object
SP1
Low
High
Switching output
Low active
Distance to the object
SP1
Low
High
Switching output
Fig. 6-2: Switch point logic using a normally open (NO) example
Switch
point
logic
Output
function
Object
LED
Swit-
ching
output
High
active
NO
detected
on
high
not
detected
off
low
High
active
NC
detected
on
low
not
detected
off
high
Low
active
NO
detected
off
low
not
detected
on
high
Low
active
NC
detected
off
high
not
detected
on
low
Tab. 6-1: Overview of switching functions
BES M12M_1-YIC_0_-S04G
Inductive sensors
Summary of Contents for IO-Link BES M12MC1-YIC10F-S04G
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