Eaton easyE4 - Page 335

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
Operating modes

Description Note
LT: less than (I1 < I2)
Less than (I1 < I2)

LE: less than/equal to (I1 <= I2)
Less than or equal to (I1 <= I2)

EQ: equal to (I1 = I2)
Equal to (I1 = I2)

GE: greater than/ equal to (I1 >= I2)
Greater than or equal to (I1 >= I2)

GT: greater than (I1 > I2)
Greater than (I1 > I2)

Function block outputs

Description Note
(bit)
Q1
Status 1 if condition is fulfilled
(e.g. I1 < I2 with LT mode active)

CY
Status 1 if the above permissible value range of the function
block is exceeded.
If an out of range
value is indicated
with CY = 1, Q1 will
remain 0.
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 
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