Beckhoff CX20 2 Series, Руководство пользователя

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Configuration
CX20x2 42 Version: 1.7
7.3 TwinCAT
7.3.1 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:
1
6
2
3
4
5
Fig. 30: CX20x0 Embedded PC in the tree view of TwinCAT 3, with attached EtherCAT Terminals (left) or
Bus Terminals (right).
The configuration in the tree view differs depending on whether EtherCAT Terminals or Bus Terminals are
connected to the Embedded PC.
Table 28: Legend for the tree view.
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.