NF BP4620, Instruction Manual

Page: 81 / 214

4.5 Sequence Operation
BP4620
4-34

Sequence loop
Sequence loop also allows the entire sequence or any step block within the sequence to be looped.
This is achieved with [Jump step] and [Jump count] specified for each step. A jump counter for
counting the number of jumps is held internally for each step, so multiloop is also possible.
Figure 4-16 shows the loop specification method and the step transitions.
Step4

[Jump step] 0

[Jump count] NoCare
Step5

[Jump step] 0

[Jump count] NoCare
Step6

[Jump step] 5

[Jump count] 10
Step7

[Jump step] 4

[Jump count] 3
Specified count (10 times)
Go to [Jump step].
Specified count (10 times)
After jump, go to the next
step number.
Specified count (3 times)
Go to [Jump step].
Figure 4-16. Loop Specification Method and Step Transition Example
-------- Comment -----------------------------------------------------------------------------------------------------------
 [Jump count] indicates the number of times jump is to be performed. Therefore, the loop
count is equal to the jump count + 1.
 In the above example, the jump count is specified as “10” in Step 6, so the number of times
Step 5 and Step 6 are executed is 11.
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