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Standard function blocks
270
02/16 MN05013001Z EN
Operation of the function block
If the JC..EN enable coil is active, the program jumps
forwards over one or several function blocks. The next
function block to be processed is the first to follow the LB
jump label in the function block diagram. If the JC..EN
enable coil is not active, the program is processing the next
function block that is added in the function block diagram
behind JC...
In the function block list a jump label must be positioned
downstream, i.e. towards the end of the list when viewed
from associated function block “conditional jump” . If it is
placed in front of the associated jump location (backward
jump), the program branches to the end of the function block
list and fault contact JC..E1 of function block “conditional
jump” closes. If no associated jump label is set in the
function block list, the program jumps to the end of the list.
This also skips the last rung and fault contact JC..E1 also
closes.
Example
A jump is to be made downstream of a table function block
when marker M01 has the state 1.
Figure 122: Example of conditional jump
Enter the function block editor via STANDARD -> PROGRAM
-> FUNCTION RELAYS.
X
In this menu use the cursor buttons
ÍÚ
to move to the
location from where the jump is to be made and press OK.
X
Then use the cursor keys
ÍÚ
to select function block JC01
and close the input dialog with two clicks on OK.
X
Insert table function block TB01 into then next position in
the function block list, configure it and complete your
input with ESC.
X
Use the cursor keys
ÍÚ
to navigate to the next position in
the function block list and insert the jump label LB01
described below there.
M 01---------------------------
Ä
JC01EN
JC01 +
TB01 -
LB01
L:031 B:6488
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