４ - ５ Off-line Testing 1 ４ - ５ - １ Build Check if there is no error in the created pages to confirm that they operate properly. ４ - ５ - ２ Simulation Only with the NA unit. Perform simulation only with the NA unit. 36 1. Select [Project]-[Build HMI]. 2. The Build window appears at the bottom of the screen. If there is any error, the error or warning is displayed. With an error, you cannot start up the simulator. Correct the error. 1. Select [Simulation]-[Start NA Simulation]. Simulation]. 2. The simulator screen appears. Turn ON/OFF the switches to confirm the behaviors. 3. To stop the simulator, select [Simulation]-[Stop NA Simulation].