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Chapter 5: Connecting
2-pin 3.5 mm Pin Signal Description
S G
S Signal Versatile port signal (input/output)
G GND Ground
Digital Input
Every versatile port can be used as a digital input for contacts, buttons, sensors, etc. For digital input usage, the output must
be in an open state and current pull-up and current pull-down can be used.
Parameters of pulse counter input are as follows:
• Adjustable threshold
• High sensitivity - binary 0 < 1.45 V, binary 1 > 2.05 V
• Low sensitivity - binary 0 < 5.8 V, binary 1 > 8.2 V
• Input impedance >100 kohms
• Adjustable digital filter
The port offers adjustable threshold as described in the following picture.
High sensitivity
binary 0 < 1.45 V, binary 1 > 2.05 V
Low sensitivity
binary 0 < 5.8 V, binary 1 > 8.2 V
1.45
2.05
binary 0 binary 1 binary 0
5
10
Input [V]
5.8
8.2
binary 0 binary 1 binary 0
5
10
Input [V]
Figure 5-9. Adjustable threshold.
The following table describes how to use digital input.
Table 5-12. Digital input.
Detecting a pushbutton or contact
S G
Any button or contact closure can be connected.