Eaton easyE4 Manual page 508

6. Function blocks
6.1 Manufacturer function blocks
504
Operators
Constant 0, constant 1
M – Markers
2)
RN - Input bit via NET
SN - Output bit via NET (send)
2)
N - Net marker bit
2)
nN - NET marker bit NET station n
ID: Diagnostic alarm
LE - Output backlight
P device buttons
I - Bit input
Q - Bit output
Q - Bit output of a FB
2) Only on projects with ≥ 2 base devices on NET
Parameter set
Function block release by
EN is necessary
Parameter display
+ Call enabled
Simulation NOT possible
Other
Retention
The function block does not recognize retentive data.
Application example
A program consisting of the bit circuit diagram and function block generates a mean
cycle time of approx. 12 ms. Setting the set cycle time to 30 ms will ensure that the
cycle times are kept constant at this value.
easyE4 10/19 MN050009 EN www.eaton.com
Bit inputs
x
x
x
2)
x
x
x
x
x
x
x
x
x
Description
If this checkbox is enabled, the state
of function block input EN will be
evaluated. If the checkbox is dis-
abled instead, the function block will
be enabled and function block input
EN will not do anything.
Constants can be edited on the
device, as can function block para-
meters when using the EDP pro-
gramming language.
Note
This parameter ensures that
when existing programs are
copied, the functionality of the
function blocks that are carried
over will be retained. The para-
meter will be automatically set
to 0 or 1 depending on the func-
tion block.