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FlowControl entry strategy issue

Valued Contributor
Valued Contributor

Dear community members,

I'm using the flowcontrol to supply with a cyclical sequence a parallel proc. The flow control has 3 buffers as predecessors. the model requires to send 3 pcs from each buffer in a cyclical sequence, then I compiled the table as follows:

1  1
2  1
3  1
4  2
5  2
6  2
7  3
8  3
9  3

If I select "blocking", everything works as expected; 

If I do not select it, i get an issue: I designed a trial with unavailable products at the second buffer (predecessor 2) and the flowcotrol send to parallelproc 2 parts from predecessor 1 and 1 part from predecessor 3. 

 

Can you see any mistake?

8 REPLIES

Re: FlowControl entry strategy issue

Solution Partner Genius Solution Partner Genius
Solution Partner Genius
Hello AlessandroPic,

By selecting blocking, you are strictly following the sequence defined in the table. If you remove blocking, then the sequence in the table is 'preferred' but not strictly followed. If flow control is able to send part to parallel proc by violating the sequence, it will do.

Re: FlowControl entry strategy issue

Valued Contributor
Valued Contributor
Thanks for your answer.
Can you suggest a way to solve it?

Re: FlowControl entry strategy issue

Solution Partner Genius Solution Partner Genius
Solution Partner Genius
Can you please elaborate on what you are trying to achieve.

Re: FlowControl entry strategy issue

Valued Contributor
Valued Contributor
Given the sequence in my first post, I want the flow control to follow that sequence and, if a product is not available, it schould continue with the sequence.
For example, assume the flow control just passed the first 3 entities from predecessor 1 to the successor and that at predecessor 2 the entities are not available. The flow control should jump the unavailable products and then continue with the sequence, e.g. transfer 3 units from predecessor 3, 3 units from predecessor 1, 3 units from predecessor 2 ...

Re: FlowControl entry strategy issue

Solution Partner Valued Contributor Solution Partner Valued Contributor
Solution Partner Valued Contributor
Yes, But then the flow control is not the answer, you would need to use a method for that. Since you are conditioning the sequence to the availability of parts.
cortega@interlatin.com.mx
+52 (81) 10801310
InterLatin S de RL de CV

Re: FlowControl entry strategy issue

Valued Contributor
Valued Contributor
Can you suggest a way to achieve this? I cannot figure out

Re: FlowControl entry strategy issue

Solution Partner Valued Contributor Solution Partner Valued Contributor
Solution Partner Valued Contributor

Well,

 

As far as I understand you want to preserve the sequence as long as there are MUs in each buffer.

 

I suggest a pull control like the one attached.

 

It will always pull MUs, following the sequence, but if no parts related to the sequence then will jump to the next one.

 

Anyway I 'm sure you will figure this things out soon...

 

Nice day, 

 

cortega@interlatin.com.mx
+52 (81) 10801310
InterLatin S de RL de CV

Re: FlowControl entry strategy issue

Valued Contributor
Valued Contributor
Many thanks, i will work on it