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Standard function blocks
330
02/16 MN05013001Z EN
TB, table function
The table function block enables you to create and read table
entries in the form of double words (32-bit). The function
block works on the memory stack principle, whereby you can
choose to apply the FIFO (first-in-first-out) or the LIFO (last-
in-first-out) principle for read operations. A table can contain
up to 16 double words.
easySafety allows the use of up to 16 table function blocks.
Function block
Figure 165: Table function block
a
Coil TB..EN: Enables the operation of the function block.
b
Coil TB..WP: Reads the value at input TB..I1, enters it in the
table and outputs it at output QV.
c
Coil TB..RF: Clears the value entered first from the table and
outputs it at output QV..
d
Coil TB..RL: Clears the most recently entered value from the
table and outputs it at output QV..
e
Coil TB..RE: Deletes the table entries.
f
Input TB..I1: Input value for transfer to the table.
g
Contact TB..TE: Closes if the table is empty.
EN
TB...
TaBle function
a
b
c
d
e
f
g
h
i
j
RE
TE
>I1
QV>
WP
RF
RL
TF
QN>
DW
DW
DW
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