About the Expression Graph Dialog Box

Access this dialog box from the Expression Definition dialog box. Use it to specify the variables used when plotting your user-defined function. The software generates a preview plot of the expression by using the primary variable for the X axis over the given Range and the constant values for the other variables in the expression. When you select a primary variable, the software categorizes any other variables in the expression as secondary variables. The Expression Graph dialog box includes these items:

◦ For servo motors, force motors, forces or torques, this displays the variable you selected in the Motor tab.

◦ For user-defined measures. This area includes a list with all of the variables in the expression. Select the variable that you want to use as the independent variable for the plot.

• A Range area including text boxes for Start and End values that are used to plot the primary variable

• A Secondary Variables area listing the other variables included in the expression. This area appears only for expressions with more than one variable.

Enter a value for each secondary variable. The value of the expression is plotted against the primary variable, keeping the secondary variables fixed at the entered values.