IO-Link Parameterization
2
0
2
0
-0
9
27
6.6
SSC1 Config. Hyst
Switching Signal Channel 1 Configuration Hysteresis
The "SSC1 Config. Hysteresis" parameter indicates the extent of a desired delayed effect of the
SSC1 bit. This is despite an actual change made to the position value.
If the measured position value continuously toggles around the set critical setpoint "SSC1
Param. SP1," the SSC1 signal bit in the cyclic signal transmission would continuously toggle
between "0" and "1." If this effect is not required, use the "SSC1 Config. Hysteresis" parameter
to create an interval between the activation (1) and deactivation (0) of the SSC1 bit.
The hysteresis function depends on the mode selected in the "SSC1 Config. Mode" parameter.
It is effective for the "Single Point" and "Window" modes only. The effect in each mode is shown
in the figures below.
Single Point Mode with Hysteresis as High Active Signal
Figure 6.9
Window Mode with Hysteresis as High Active Signal
Figure 6.10
As seen in the "Window" mode figure, the hysteresis limit for Window mode has an outward-
facing effect. As seen in the "Single Point" figure, this sensing principle is used for Single Point
mode.
The example below illustrates this sensing principle, showing a frontal view of the rotary
encoder shaft and the corresponding positive direction of rotation set to clockwise.
Index
Sub
Parameter
Access
Data Type
Length
65 (0x41)
3
SSC1 Config. Hyst
rw
Integer
16 bits
SP.max
SSC
SP.min
SP 2
SP 1
inactive
active
hysteresis
SP.max
SSC
SP.min
SP 2
SP 1
inactive
active
hysteresis