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Programming Manual BasicController relay CR0431 v03.03.00
05 / 2018
Configurations
Function configuration of the inputs and outputs
>
Fast inputs
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The devices dispose of fast counting/pulse inputs for an input frequency up to 30 kHz (
→ data sheet).
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If, for example, mechanical switches are connected to these inputs, there may be faulty signals in
the controller due to contact bouncing.
Appropriate function blocks are e.g.:
FASTCOUNT
(→ p.
Counter block for fast input pulses
INC_ENCODER
(→ p.
Up/down counter function for the evaluation of encoders
PERIOD
(→ p.
Measures the frequency and the cycle period (cycle time) in [µs] at the indicated channel
When using these units, the parameterised inputs and outputs are automatically configured, so the
programmer of the application does not have to do this.
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Use as binary inputs
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The permissible high input frequencies also ensure the detection of faulty signals, e.g. bouncing
contacts of mechanical switches.
► If required, suppress the faulty signals in the application program!
Содержание BasicController CR0431
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