dl-breadcrumbs__homedl-breadcrumb-item__separatorConfiguration and programmingdl-breadcrumb-item__separatorProgramming with CODESYSdl-breadcrumb-item__separatorAutomation Builderdl-breadcrumb-item__separator...dl-breadcrumb-item__separatorReference: User Interface dl-breadcrumb-item__separatorMenu Commands dl-breadcrumb-item__separatorOnline dl-breadcrumb-item__separatorCommand: Simulation
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Command: Simulation dl-permalink__symbolPermalink

Function: The command switches the development system to simulation mode.

Call: “Online” menu

In simulation mode, you can start and debug the active application on a "simulated target device". A physical target device is not necessary for testing the online behavior of an application. When logging in for the first time, you are prompted whether to create or load the application. For a simulated device, you do not have to configure the communication settings. In simulation mode, CODESYS displays the entry of the controller in the device tree in italics.

After successful login, the red triangle icon_device_not_connected.png symbol in the device tree indicates simulation mode. You can use the corresponding online commands to test the application.

To switch off simulation mode, log out of the controller and execute the “Simulation” command again.

The command affects the active application only.

  • Differences between simulation mode and operation with a physical controller