Eaton easyE4 series, Руководство пользователя

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6. Function blocks
6.1 Manufacturer function blocks
Operands Bit inputs
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
Parameter set
Description Note
Function block release by
EN is necessary
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. 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.
Parameter display
+ Call enabled Function block parameters and con-
stants can be edited on the device.
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.
See also
→ Section "AL - Alarm function block", page 349
→ Section "BV - Boolean operation", page 353
→ Section "D - Text display", page 357
→ Section "D - Text display editor", page 366
→ Section "DL - Data logger", page 380
→ Section "JC - Conditional jump", page 386
→ Section "LB - Jump label", page 391
→ Section "MR - Master reset ", page 393
→ Section "NC - Numerical converter", page 397
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easyE4 11/18 MN050009 EN www.eaton.com