Tree view
The Tree View chapter can be used as an example for creating a project without actual hardware. All devices and components of an Embedded PCs must be added manually in TwinCAT 3.
The smallest possible configuration of a CX20x0 Embedded PC, consisting of a basic CPU module and a CX2100-0004 power supply unit, is displayed in the tree view of TwinCAT 3 as follows:
The configuration in the tree view differs depending on whether EtherCAT Terminals or Bus Terminals are connected to the Embedded PC.
No. | Description |
|---|---|
1 | The CX20x0 Embedded PC with EtherCAT Terminals is added as EtherCAT master. Variables for diagnostic purposes are listed under inputs or outputs. |
2 | EtherCAT Terminals (E-bus) are displayed under the EK1200 Bus Coupler in the tree view. |
3 | The power supply unit for the CX20x0 Embedded PC appears under a USB device. The power supply unit also has variables for diagnostic purposes. |
4 | The CX20x0 features NOVRAM for storing up to 128 kB of data securely. At this point the NOVRAM handler is created, followed by configuration of the retain variables. |
5 | If Bus Terminals (K-bus) are used together with a CX20x0 Embedded PC, the Bus Coupler (CX-BK) is added together with the Bus Terminals. |