Eaton easyE4 User Manual

6. Function blocks
6.1 Manufacturer function blocks
Operands Bit inputs
P device buttons
x
I - Bit input
x
Q - Bit output
x
Q - Bit output of a FB
x
2)
Only on projects with ≥ 2 base devices on NET
Function block outputs
 Description Note
(bit) 
OF
Overflow
1: if QV ≥ SH
OF=1, if the actual value is
greater than or equal to the
upper threshold value;
FB
Fall below
1: if QV ≤ SL
FB=1, if the actual value is less
than or equal to the lower
threshold value;
CY
Carry
1: if QV > value range
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 con-
tact CY is set.
ZE
Zero
1: if QV = 0

(DWord)
QV
Current counter value in RUN mode
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
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Eaton easyE4 Specifications

General

Brand	Eaton
Model	easyE4
Category	Relays
Language	English