Eaton easyE4 User Manual

6. Function blocks
6.1 Manufacturer function blocks
Operands Bit inputs
Constant 0, constant 1
x
M - Markers
x
RN - Input bit via NET
2)
x
SN - Output bit via NET (send)
2)
x
N - Net marker bit
2)
x
nN - NET marker bit
2)
NET station n
x
ID: Diagnostic alarm
x
LE - Output backlight
x
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 contact CY is
set.
ZE
Zero
1: if QV = 0

(DWord) 
QV
Current counter value in RUN mode
Integer value range:
-2,147,483,648 to +2,147,483,647
Assigning operands
You can assign the following operands to the function block outputs that are numeric
outputs:
Assigning operands Value outputs
MB, MD, MW – Markers
x
NB, NW, ND – NET markers
2)
NET station n
x
QA – Analog output
x
I – Value input of a FB
x
2)
Only on projects with ≥ 2 base devices on NET 
318
easyE402/24 MN050009ENEaton.com

Eaton easyE4 Specifications

General

Brand	Eaton
Model	easyE4
Category	Relays
Language	English