Eaton easyE4 User Manual

6. Function blocks
6.1 Manufacturer function blocks
Assigning operands Bit outputs
N – Network marker bit
2)
x
LE – Output backlight
x
Q – Bit output
x
I – Bit input of a FB
x
2)
Only on projects with ≥ 2 base devices on NET 
Parameter set
Configuration/time range 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 disabled instead, the function
block will be enabled and function
block input EN will not do any-
thing.
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
Constants can be edited on the
device, as can function block para-
meters when using the EDP pro-
gramming language.

Simulation possible


Other
Retention
The function block does not recognize retentive data.
Example of a table function when using the EDP programming language
While in the Programming view:
Position a TB function block on a coil field in your circuit diagram.
In the Properties field window select the required function block number on the
Circuit Diagram Element tab.
Assign a numerical operand to the function block input I1 so that a numerical
value can be transferred.
Connect the coils TBxxEN, TBxxWP, TBxxRF etc. with the contact suitable for
activation.
If required, write a comment for the selected operand.
If you wish to check if a table is full or empty, you must also wire this function block
as a contact.
Position the function block on a contact field and select the same function block
number in the Circuit Diagram Element tab that you have assigned to the coil.
If required, change the switch function of the contact from break to make con-
tact.
450
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Eaton easyE4 Specifications

General

Brand	Eaton
Model	easyE4
Category	Relays
Language	English