Balluff IO-Link BES M12MC1-YIC10F-S04G, Руководство пользователя

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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