Eaton easyE4 Manual page 306

6. Function blocks
6.1 Manufacturer function blocks
302
Operators
LE - Output backlight
P device buttons
I - Bit input
Q - Bit output
Q - Bit output of a FB
2) Only on projects with ≥ 2 base devices on NET
Function block outputs
(Bit)
OF
FB
CY
ZE
(DWord)
QV
easyE4 10/19 MN050009 EN www.eaton.com
Bit inputs
x
x
x
x
x
Description
Overflow
1: if QV ≥ SH
Fall below
1: if QV ≤ SL
Carry
1: if QV > value range
Zero
1: if QV = 0
Current counter value in RUN mode
Note
OF=1, if the actual value is
greater than or equal to the
upper threshold value;
FB=1, if the actual value is less
than or equal to the lower
threshold value;
If the value range is exceeded,
the switch contact switches to
status 1 for one cycle per rising
edge detected. The function
block retains the value of the
last valid operation before the
contact CY is set.
The pulses at channel A and
channel B are counted. 2 pulses
are counted per counting
period.
Example: 2 pulses at channel A
and 2 pulses at channel B;
value at CI..QV = 4