Jump Addresses - Mitsubishi Electric WS0-CPU0 Operating Manual

Chapter 5
ATTENTION
Figure 29:
Example of jump addresses
with and without loop back
59
The graphical user interface
5.6.8

Jump addresses

Jump addresses can be used basically in the same way as CPU markers. They
consist of a source jump address and a destination jump address. The destination
jump address takes the same value (High or Low) as the corresponding source jump
address without delay – provided that it is not a loop back. In this way, jump addresses
differ from CPU markers.
Take logic loop backs into account!
A logic loop back is created if a function block input is connected to a destination jump
address and the related source jump address is connected to an output of the same
function block or to an output of another function block that has a higher function block
index (the function block index is displayed at the top of each function block and
shows the function block's position in the logic execution sequence). In this case, the
logic result from the current logic cycle is only available at the destination jump
address in the following logic cycle, i.e. with a delay of the logic execution time. If a
jump address causes a loop back, this is indicated automatically by an additional clock
symbol shown on the destination jump address icon. The resulting delay is equal to
the execution time and must be considered for the response time calculation and for
the functionality.
How to use a jump address:
 First add a source jump address per drag & drop to your project. A dialog opens
where you must enter a label for the new source jump address. Each source jump
address label must be unique and can be used only once in a project. Typically, a
source jump address is connected to any function block output.
 Then add one or several destination jump addresses per drag & drop. A dialog
opens, where you can select the correspondent source jump address for the new
destination jump address from the list of existing source jump address labels. A
source jump address can have several destination jump addresses in a project.
Typically, a destination jump address is connected to any function block input.