Solution:

To run the I/O driver in simulation mode 1. Start the Power Tool. 2. Select the Setup button in the Run-time toolbar. 3. Select the Advanced tab in the Setup dialog box. 4. Click the Simulation Mode On option button. 5. Restart the server. To restart the server 1. Shut down all server clients including the FIX. This action shuts down the server. 2. Restart the FIX. Once the server restarts, you can create your operator displays and process databases with real I/O addresses. Later, when you want to switch to real process hardware, you can do this without changing these addresses.