6. Function blocks
6.1 Manufacturer function blocks
Assigning operands
You can assign the following operands to the function block inputs that are numeric
inputs.
Operands Value inputs
Constant, timer constant x
MD, MW, MB - Markers x
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)
EQ 1: if the data ranges are identical.
0: if the data ranges are not identical.
E1 Error output
1: if the number of elements exceeds the
source or target range.
The range limits are checked irrespective
of the edge change on the Boolean EN
input.
E2 Error output
1: if the source and target range overlap.
The range limits are checked irrespective
of the edge change on the Boolean EN
input.
E3 Error output
1: if the source or destination range are outside
of the available marker range (offset error, or
input NO is not configured i.e. has the value 0.
The range limits are checked irrespective
of the edge change on the Boolean EN
input.
EQ Equal
1: if the data ranges are identical.
0: if the data ranges are not identical.
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easyE4 11/18 MN050009 EN www.eaton.com