Configuration
2−97
l
EDSVF9383V−EXT EN 2.0
2.4.31
Counter (FCNT)
This FB is used for digital counting up and down.
FCNT1−CLKUP
C1102/1
FCNT1−CLKDWN
C1102/2
C1104/1
C1104/2
FCNT1−LD−VAL
C1101/1
C1103/1
FCNT1−LOAD
C1102/3
C1104/3
FCNT1−OUT
FCNT1−EQUAL
C1101/2
C1103/2
FCNT1−CMP−VAL
C1100
CTRL
FCNT1
Fig. 2−79
Counter (FCNT1)
Signal
Source
Note
Name
Type
DIS
DIS format
CFG
List
FCNT1−CLKUP
d
C1104/1
bin
C1102/1
2
LOW−HIGH edge = counts up by 1
FCNT1−CLKDWN
d
C1104/2
bin
C1102/2
2
LOW−HIGH edge = counts down by 1
FCNT1−LD−VAL
a
C1103/1
dec
C1101/1
1
Start value
FCNT1−LOAD
d
C1104/3
bin
C1102/3
2
·
HIGH = Accept start value
·
The input has the highest priority
FCNT1−CMP−VAL
a
C1103/2
dec
C1101/2
1
Comparison value
FCNT1−OUT
a
−
−
−
−
Counter limited to ±199.99 %
FCNT1−EQUAL
d
−
−
−
−
HIGH = comparison value reached
Setting start value
l
As long as FCNT1−LOAD = HIGH, the value at FCNT1−LD−VAL (start value) is switched to
FCNT1−OUT.
l
When FCNT1−LOAD = LOW, the counter is enabled for counting up and down.
l
When FCNT1−LOAD = HIGH, the counter is reset to the value at FCNT1−LD−VAL.
Counting up/down
l
A LOW−HIGH signal at FCNT1−CLKUP increases the counter by 1.
l
A LOW−HIGH signal at FCNT1−CLKDWN reduces the counter by 1.
