IEE 475: Arena Tutorial - Process Analyzer

[@NathanielPeters-se1yx]

Give this man some love. Northeastern University Simulation Modeling class is so grateful. Learning more in this than like the whole year in class.

[@thaonguyen-tk5gd]

your posts help me a lot, thank you!

[@linzang5257]

Is there any way to improve the running speed at the Process Analyzer?

[@TedPavlic]

You can make the process analyzer run faster by making your simulation run faster. Here are some tips from Rockwell for doing that: info.arenasimulation.com/blog/tips-for-improving-arena-model-runtime-speeds

[@ronaktiwari6127]

Can we change the processes in process analyzer? I mean let's say if we have a triangular process TRIA (4,5,6)... Can I run 1. TRIA (5,6,7) 2. TRIA(6,7,8) 3. TRIA(7,8,9).... all at once in process analyzer? I cant seem to find a way for this... Help appreciated!

[@TedPavlic]

@Ronak Tiwari: Go into the Variables data module and add a global variable (or multiple) and use the variable (or variable) as the argument (or arguments) for your random distributions. You can then change the value of the Variables in the process analyzer. Does that make sense?

[@ronaktiwari6127]

@@TedPavlic perfect! Got it! Thanks, Ted!

[@ronaktiwari6127]

@@TedPavlic One more question, Ted - I am trying to define a global variable say, Reorder Level = 0.25*Inventory Capacity.... but it only takes real numbers... (if you understand what I am trying to say) .... Any way in which I could probably do this?

[@TedPavlic]

@Ronak Tiwari: If you go into the expression builder in Arena (look under Tools or right click on any expression field to find a link to it), you'll find a functions in the mathematical category that can help. In particular, ANINT(...) rounds to the nearest integer. You can add or subtract 0.5 from the argument if you want it to implement ceiling or floor. Does that help? It will ensure your variable being calculated is always an integer.

[@ronaktiwari6127]

@@TedPavlic Thanks Ted, but I think I did not frame the question correctly. Let me try again - If I go into the: Basic Process - > Variable -> Inventory Capacity -> Initial Value = 60000 Now I want to define: Basic Process - > Variable -> Reorder Level -> Initial Value = 0.25*Inventory Capacity So the problem here is that the initial values are expected to be a real number. Consider Inventory Capacity as a variable already defined and I want to automatically calculate the reorder level from it. and then I want to use ROL for other purposes... P.S. I don't want to do this in the model but in the variables. I don't know if you could get the problem? Thanks, again. :)