copyright 1997 promodel corporation unit two: software basics

Copyright 1997 PROMODEL

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UNIT TWO: SOFTWARE BASICS


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REAL WORLD SYSTEMS

The system you are studying has OBJECTS and INTERACTIONS.

You must define the objects in the system…

…so you can classify each as a type of ProModel object!


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PROMODEL MODELING ELEMENTS

The main elements are: LOCATIONS (object) ENTITIES (object) ARRIVALS (interaction)

PROCESSING (interaction)

RESOURCES (object - not pictured)

L

L

L

L

E

EXIT

entity arrivals

entity exits


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SYSTEM to ProModel MODEL

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L

L

L

E

EXIT

entity arrivals

entity exits


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HOW TO CREATE MODEL ELEMENTS

ProModel uses a graphical approach Each element has a GRAPHICS

TOOLBOX By clicking on the GRAPHIC, and then

clicking on the LAYOUT, you create an element

Each element you create has a table record associated with it


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MODEL 0

Follow along with your instructor as he/she builds a simple model


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LOCATIONS

L

L

L

L


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ENTITIES

L

L

L

L

E


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ARRIVALS

L

L

L

L

E

entity arrivals


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PROCESSING

L

L

L

L

E

EXIT

entity arrivals

entity exits


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RUNNING THE SIMULATION

Options Dialog Box F12 to save the model F10 to run the model Simulation/Run Simulation/Save and

Run


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OUTPUT EDITORGeneral Report Information

Quick View Buttons


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FILE MENU


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VIEW MENU


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BUILD MENU


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SIMULATION MENU


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OUTPUT AND TOOLS MENU


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OPTIONS DIALOG


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LAYOUT MENU


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THE ROAD TO SELF SUFFICIENCY

On-Line Help Documentation (User’s Guide, Reference Manual) Reference Models Statement Builder www.promodel.com/BBS 24 Hour Phone Support Local Support/Consulting


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MODEL 1A/1B Applications:

– Individual part processing, cutting raw stock into pieces, batching for heat treat

ProModel Features

– Location Graphics

– WAIT and MOVE FOR statements

– Routing Dialog Box, Output quantity

– COMBINE statement Data Interpretation

– Identifying bottlenecks, throughput calculations Simulation Techniques/Theory

– Number of entities in system


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LOCATION GRAPHICSNEW button

countergaugetext

status lightentity spot

region


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PROCESS TIMES

Entity @ Location

WAIT statementExamples:

WAIT 3uses default time

WAIT 5 min

WAIT 5 sec

WAIT 5 hr

STATEMENT BUILDER

Right click, or press the “build” icon in any logic

Wizard-style code writer will put commands in the proper format


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MOVE TIMESEntity Between Locations

MOVE FOR statementPlaced in move logic

Examples:MOVE FOR 2

(use default time)

MOVE FOR 4 min


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MODEL 1A EXERCISE


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input_pallet

splitter lathe mill

heat_treatoutput_pallet

EXIT


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Cutting/Unbatching output quantity of x from routing dialog box


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Cutting/Unbatching Continued

Output quantity is five. Five pieces come from 1 raw_stock


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Batching/(COMBINE statement)

COMBINE


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MODEL 1B EXERCISE


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Data InterpretationBottlenecks: Where are they

and how do I tell?

% operation and % blocked

Throughput: How many parts am I producing?

total exits


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Simulation Technique/Theory

Number of entities in the system– Keep at a minimum.– Splits, multiple routings, multiple quantities

all create more entities– Use GROUP, COMBINE, LOAD, JOIN to

consolidate entities and graphics– each entity is more work for CPU

copyright 1997 promodel corporation unit two: software basics

Documents

type of promodel object

paradigm of locations

system wher

simulation modeling

model elementspromodel

model f10

statementsrouting dialog

multiple quantities