Eaton easyE4 series, Руководство пользователя

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6. Function blocks
6.1 Manufacturer function blocks
Operands Value inputs
NB, NW, ND - NET markers x
nNB, nND, nND- NET markers
NET stations n x
IA - Analog input x
QA - Analog output x
QV - QV - Numeric output of a FB x
You can assign the following operands to the function block inputs that are bit inputs:
Operands Bit inputs
Constant 0, constant 1 x
M – Markers x
RN - Input bit via NET x
SN - Output bit via NET (send) x
N - Net marker bit x
nN - NET marker bit NET station n x
ID: Diagnostic alarm x
LE - Output backlight x
P buttons x
I - Bit input x
Q - Bit output x
Q - Bit output of a FB x
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
contact 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
easyE4 11/18 MN050009 EN www.eaton.com
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