SICK Flexi Compact User Manual

Principle of operation
T
able 66: Inputs
Input Description
Down Data type: Boolean
A r
ising signal edge (0–1) at the Down input decreases the value of the
internal counter by “1” as long as 0 has not been reached.
1)
If the value falls below 0, the behavior depends on the Underflow behav‐
iour parameter.
Set to Reload value Data type: Boolean
A r
ising signal edge (0–1) at the input sets the value of the internal
counter to the configured value of the Reload value parameter.
1)
If, during the first logic cycle, the input is already 1, then function block does not evaluate this as a rising
si
gnal edge.
Table 67: Outputs
Output Description
Counter value Data type: UINT16
Out
puts the value of the internal counter (0 … 65,535).
Lower limit Data type: Boolean
Is 1 a
s long as the counter = 0
Underflow Data type: Boolean
See t
he Underflow behaviour parameters
Table 68: Parameter
Parameter Description
Initialization value The start value of the internal counter is set to the value of the Ma
xi‐
mum value parameter in the first logic cycle.
Underflow behaviour This parameter controls the behavior of the function block when the
int
ernal counter has reached the value 0 and then another counting
pulse occurs at the Down input.
•
No underflow function
All other rising signal edges at the D
own input are ignored.
•
U
nderflow function
°
The Underflow output is 1 for the duration of a logic cycle.
°
The value of the internal counter is set to the Maximum value
parameter.
Maximum value 1 … 65,535
Reload value Corresponds to the Ma
ximum value parameter.
7.6.2.3.8 Event counter (up and down) V1
Overview
T
he function block counts the number of rising signal edges at the Up and Down inputs.
CONFIGURATION 7
8024589/2020-11-10 | SICK O P E R A T I N G I N S T R U C T I O N S | Flexi Compact
71
Subject to change without notice

SICK Flexi Compact Specifications

General

Brand	SICK
Model	Flexi Compact
Category	Controller
Language	English