Switching Profiles - Balluff BES M12EG1-L01C80F-S04G-L04 Konfigurationsanleitung

BES M12EH1-L01C40B-S04G-L04 / BES M12EG1-L01C80F-S04G-L04 /
BES M18EH1-L01C80B-S04G-L04 / BES M18EH1-L01C12F-S04G-L04
Inductive sensors
4
Primary Device Functions (continued)
4.3

Switching Profiles

4.3.1 Description
Sensor principle / evaluation logic
The sensor measures the damping of the internal oscillator
circuit in the presence of an electrically conductive object.
The temperature-compensated measurement value
Proximity (Transducer Value) can be read out in register
0x01B2 (PDObjectID 0xFFF7). Sample variation can alter
the steepness of the slope and the offset. During teach-in,
the Transducer value, which is set for the switching interval
to be taught, is stored in the corresponding Set Point Value
registers.
The transducer value can be used to obtain a qualitative
evaluation of the damping state. Since the product is a
binary switch, no quantitative conclusions about the exact
value [mm] should be drawn from the Proximity value,
however. Due to the physical non-linearity of the damping
curve, the Proximity value over distance is also non-linear.
The sensor performs measurement value acquisition as a
continuous signal that is evaluated for switching signal
generation. For switching sensors, this value is
permanently defined according to the product. The
evaluation takes place based on the value PDObjectID
0xFFF7 (Transducer Value).
Switching points are defined by means of setpoints that
can be determined using various teach processes.
Alternatively, the setpoints can also be set directly via
ISDUs, but under observation of the same requirements
and rules as define for the teach processes.
The setpoint setting can also be used to deactivate the
switching point evaluation. This is performed with the No
Measurement Data setting:
Status
AdSS – Profile
No Measurement Data
(16 bit)
LSSC – Profile
No Measurement Data
(32 bit)
Tab. 4-4: Switching Profiles – Deactivate switching point evaluation
26 english
Value
32.764 (0x7FFC)
2,147,483,644 (0x7FFFFFFC)
Overview AdSS – Profile
– Only one switching channel (Switching Signal Channel
(SSC)) available.
– Only one switching point (setpoint) per switching
channel.
– Permanently defined hysteresis according to the
product.
– As switching mode, only the Single Point Mode is
available.
– The following teach commands are available: Single
Value Teach, Two Value Teach and Dynamic Teach
(profile spec.).
Overview of LSSC – Profile
– Multiple switching channels are possible (up to
2 channels currently supported).
– Two switching points (setpoints) per switching channel.
– Multiple switching modes are possible: Single-Point
Mode, Two-Point Mode and Window Mode.
– The following teach commands are available for both
setpoint 1 and setpoint 2: Single Value Teach, Two
Value Teach and Dynamic Teach (profile spec. and
Balluff spec.).
Switchpoint Logic
With switching logic High Active, the switching output
switches to high if the current measurement value is
greater than the set (taught) setpoint. With Low Active this
logic is inverted.
High Active
Low
SP1
Fig. 4-1: Switchpoint logic High Active
Low Active
High
SP1
Fig. 4-2: Switchpoint logic Low Active
High
Measurement value
Low
Measurement value