IFM Electronic Ecomat Mobile Series, Системное руководство, Страница: 30 / 298

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ifm System Manual ecomat mobile SmartController (CR2500) V05
Configurations Function configuration of the inputs and outputs
GND
Sensor
U
B
GND
Sensor
U
B
High side input for negative sensor signal Low side input for positive sensor signal
Fast inputs
In addition, the ecomat mobile controllers have up to 16 fast counter/pulse inputs for an input
frequency up to 50 kHz (
→
data sheet). If, for example, mechanical switches are connected to these
inputs, there may be faulty signals in the controller due to contact bouncing. Using the application
software, these "faulty signals" must be filtered if necessary.
Furthermore it has to be noted whether the pulse inputs are designed for frequency measurement
(FRQx) and/or period measurement (CYLx) (
→
data sheet).
The following functions, for example, can be used here:
On FRQx inputs:
•
Frequency measurement with function FREQUENCY (
→
page 201 )
•
Fast counter with function FAST_COUNT (
→
page 212 )
On CYLx inputs:
•
Period measurement with function PERIOD (
→
page 203) or with function PERIOD_RATIO
(
→
page 205 )
•
Phase position of 2 fast inputs compared via the function PHASE (
→
page 207 )
Info
When using this function, the parameterised inputs and outputs are automatically configured, so the
programmer of the application does not have to do this.