How to use MTBF/MTTR in real case?

Hai, I'm confusing on using the MTBF/MTTR table, can someone please explain to me? What are the difference between exponential and normal? Which one is better in reducing the staytime?

Hi,
as far as I understand the MTBF/MTTR function is to give a platform to generate failures in runing processes.

I´m not sure if you allready read this:

http://www.flexsim.com/community/for...read.php?t=827

Further I think differences of distributions are explained very well in the Help/Commands and with Flexsim 6 in the pickoptions itself.

Hai, thank you so much. Another one question that I want to ask is, how to resend the items from processor queue to the source queue when the processor was down?

I have attached my model here.

Cheer,
Liang Wen Yin

What items do you want to send back to source Queue? All items that are in processor Queue or the one item in processor?

Dear Sebastian,

I want to send all items that are in the processor queue.

Think here is a idea how you could solve this topic. If I understood the question right. Your Q2 doesn´t release item to P2 anyway. But maybe you can use what I´ve done as a hint.

If there is possibility that more than one item is in a processor Queue, you maybe have to use a "for" loop for getting all items done ;-)

Dear Sebastian,

I tried to wrote the "for" loop to get all items done but it seems like doesn't work well. Can you please come out that code for me? Thanks.

Ok, you are right "for" loop looks very difficult. It had to be a "while" loop.

Dear Sebastian Hemmann,

Thank you very much.

But when I run my real model until 683788 second, my model become lagging & the Flexsim is not responding. How come ya?

For me the model runs longer Simulationtime. But as I allready mentioned the model you shared doesn´t send items from queue Q2 to processor P2.

Maybe you could share your actual working model!?

Dear Sebastian Hemmann,

Here is my model. But, in my model, the queue 2 will send the items to the processor 2.

Thanks.