On the front panel, right click on the icon in the top right corner. Select Show Connector. Right click again and select Show Patterns. Select the pattern that suits your needs. Then if you hover over the connector, the mouse pointer turns into a wiring tool. Click on the terminal in the connector pane that you want to select for assignment. Then click on the control or indicator that you want to assign to that terminal you just clicked. The terminal will turn a color dependent on the data type of the control/indicator (blue for integer, orange for float, pink for string, etc.) Repeat for all assignments to be made. As a proper programming rule, all inputs to the vi should be connected to the left side of the pane. All outputs should be connected to the right side. The Error In cluster is usually connected to the lower left terminal, the Error Out is usually connected to the lower right. If you look at NI functions that use Error clusters, you will see that Error In is always on the lower left and Error Out is always on the lower right.