Eaton easyE4 series Manual page 224

6. Function blocks
6.1 Manufacturer function blocks
220
Operands
N - Net marker bit
nN - NET marker bit NET station n
ID: Diagnostic alarm
LE - Output backlight
P buttons
I - Bit input
Q - Bit output
Q - Bit output of a FB
Function block outputs
Description
(Bit)
OF Overflow
1: if QV ≥ SH
FB Fall below
1: if QV ≤ SL
CY Carry
1: if QV > value range
ZE Zero
1: if QV = 0
(DWord)
QV Current counter value in RUN mode
Assigning operands
You can assign the following operands to the function block outputs that are numeric
outputs:
Assigning operands
Constant
Markers: MB, MD, MW
Analog inputs IA
Analog output QA
Numeric output from another QV FB
You can assign the following operands to the function block outputs that are bit outputs:
Assigning operands
Constant 0, constant 1
M – Markers
easyE4 11/18 MN050009 EN www.eaton.com
Bit inputs
x
x
x
x
x
x
x
x
Note
OF=1, if the actual value QV is greater
than or equal to the upper threshold
value;
FB=1, if the actual value QV 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.
Integer value range:
-2,147,483,648 to +2,147,483,647
Outputs
x
x
x
x
x
Bit outputs
x
x