Vector VEC-VA Series

VA Motion Controller Programming Manual
180
Input
type of
data
description
CU
BOOL
If the CU has a rising edge , CV adds 1
CD
BOOL
If the CD has a rising edge , the CV is decremented
by 1.
RESET
BOOL
When RESET
is
FALSE
, the count is started.
When
TRUE
, the
CV is
cleared to zero and the counter
is initialized.
LOAD
BOOL
When LOAD
is
FALSE
, the count is started.
When
TRUE
, the
PV is
assigned to
CV
and the counter is
initialized.
PV
INT
Count the upper limit or start value
Output
type of
data
description
QU
BOOL
When
CV=PV
,
QU=1
QD
BOOL
When
CV=0
,
QD=1
CV
INT
Count value
Funtion and Action examples
When the CU has a rising edge, the value is
incremented by 1 when the CD has a falling edge current
value minus 1.
description
This counter function block
increments or decrements the
count. Assuming a rising edge at
the CU input, the CV is incremented by
one. Assuming a rising edge at
the CD input, the CV is decremented
by one. If CV = PV , the OU is set
to TRUE . If CV = PV , the OU is set
to TRUE .
If RESET = TRUE , the counter is
initialized to 0 . If LOAD = TRUE , the
counter is initialized to PV . In order
to enable the counting process, both
the RESET and LOAD inputs must
be FALSE . Otherwise the counter will
be reinitialized.