14.02.2013 Views

Thesis - Leigh Moody.pdf - Bad Request - Cranfield University

Thesis - Leigh Moody.pdf - Bad Request - Cranfield University

Thesis - Leigh Moody.pdf - Bad Request - Cranfield University

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Chapter 8 / Simulation<br />

_ _<br />

for this parameter will not be collated until the text field has been reselected<br />

followed by . The variable in the text field can<br />

be changed without de-activating the window, or even returning to step<br />

mode. If the variable trace is changed the program automatically reinitialises<br />

the statistical data presented.<br />

8.7.1.6 DUMP Facility<br />

Activating this button writes the entire contents of the GCB to the Data<br />

Logging file capturing the system status at a particular time before returning<br />

to normal operation. Because of the GCB size this facility must be used<br />

sparingly.<br />

8.7.2 Parameter Trace Window<br />

Whereas the Parameter Visualisation is used to observe GCB variables on a<br />

frame-to-frame basis with the program in STEP mode, the Parameter Tracer<br />

can be used to view a variable “continuously” for anomalous behaviour<br />

whilst in RUN mode.<br />

Figure 8-11 : Parameter Trace Window<br />

The window shown in Figure 8-11 uses the same search and display logic to<br />

display up to 12 GCB variables refreshed at the windows update rate. Using<br />

the left-hand mouse button to select one of the text fields a variable name is<br />

keyed in followed by . The program searches the GCB<br />

for the variable and displays its value in the output field in the units shown<br />

in the Parameter Visualisation window. If the variable name is not found a<br />

message to that effect is written in the text output field. A variable name<br />

can be keyed in with the simulation in any mode. To remove a variable, the<br />

8-23

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!