IDEC SmartRelay FL1A-B10RCA, Manual

Page: 107 / 209

IDEC SmartRelay Functions
4-39
IDEC SmartRelay User’s Manual
Timing diagram
R
Dir
Par
Cnt
0
Q
Internal
count value
Cnt
Description of function
At each positive signal edge at the input, Cnt either
increases the internal counter value by one (Dir = 0) or
decreases it by one (Dir = 1).
If the internal counter value is greater than or equal to the
value specified for Par, the output Q is set to 1.
The Reset input R can be used to reset the internal counter
value and the output to ’000000’. As long as R=1, the
output remains set to 0 and the pulses at the input Cnt are
not counted.
Par parameter setting
If the internal counter value is greater than or equal to Par,
output Q is set. The counter remains the same in the case
of under or overflow.
Lim can be anything between 0 and 999999.
Rem: This parameter switches the retentive feature of the
internal Cnt counter on and off.
off = No retentive feature
on = The Cnt counter can be stored retentively
B03:Par
Rem=off
Lim=
Count value
Retentivity
See the section ”Displaying/hiding
parameters - type of protection” on
page53