Using Plots for Troubleshooting

Here are typical ways to use plotting blocks in the SimEvents Sinks library to troubleshoot problems.

Technique	Example
Check when an entity departs from the block. To do this, plot the #d output signal of the block.	Example: Plotting Entity Departures to Verify Timing
Check whether operations such as service completion or routing are occurring as you expect. To do this, plot statistical output signals such as pe or last, if applicable.
Check whether a block uses a control signal as you expect. To do this, plot input signals such as port selection, service time, or intergeneration time, and compare the values with observations of how the corresponding blocks use those signals.	Example: Choices of Values for Event Priorities
Check how long entities spend in a region of the model. To do this, plot the output of a Read Timer block.	Example: M/M/5 Queuing System
Check whether events you expect to be simultaneous are, in fact, simultaneous. To do this, use the Instantaneous Entity Counting Scope or Instantaneous Event Counting Scope block.	Example: Counting Simultaneous Departures from a Server and Example: Plotting Event Counts to Check for Simultaneity

Technique

Example

Check when an entity departs from the block. To do this, plot the #d output signal of the block.

Example: Plotting Entity Departures to Verify Timing

Check whether operations such as service completion or routing are occurring as you expect. To do this, plot statistical output signals such as pe or last, if applicable.

Check whether a block uses a control signal as you expect. To do this, plot input signals such as port selection, service time, or intergeneration time, and compare the values with observations of how the corresponding blocks use those signals.

Example: Choices of Values for Event Priorities

Check how long entities spend in a region of the model. To do this, plot the output of a Read Timer block.

Example: M/M/5 Queuing System

Check whether events you expect to be simultaneous are, in fact, simultaneous. To do this, use the Instantaneous Entity Counting Scope or Instantaneous Event Counting Scope block.

Example: Counting Simultaneous Departures from a Server and Example: Plotting Event Counts to Check for Simultaneity

Working with Scope Plots

Example: Plotting Entity Departures to Verify Timing

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