Terminal Configuration

Once a terminal has been added it will appear in the System Manager tree view. On the right hand side, you will see the general and terminal-specific dialogues:

Terminal Configuration 1:

Name

In this view you can edit the identifier for the selected terminal, which will then appear in the tree view and in the Exporting Variables Information.

Type

Names the selected terminal type and its function.

Comment

User-defined comment on the terminal to be used (e.g. specific, user-defined settings in the terminal registers). The comment given here is also displayed when performing configurations under Bus Terminal Controller - Configurations, the subsequent Exporting Variables Information and in the Global BC Variable List. This information also appears when importing I/O variables into the TwinCAT OPC Server.

Disabled

Disables the terminal input for the current configuration (transparent), i.e. the terminal is excluded from the configuration and calculation.

Variable Links - Terminal Channel Dialogues

This area is context-dependant, i.e. the dialogue type can depend on the selected terminal. There are two options for linking terminal variables with task variables (e.g. in/outputs for a PLC task).

1st option

Open the terminal within the tree view to the lowest level and select the physical I/O variable you wish to link (the example shows ‘Data Out’, the process data output for this terminal).

Terminal Configuration 2:

Name

Identifier of the selected physical I/O variable.

Type

Data type of the selected physical I/O variable.

Group

The channel to which the selected physical I/O variable belongs.

Size

Number of data bytes of this physical I/O variable.

Address

Parameter offset in the local process image of the coupler.

User ID

User-defined identification number for this variable (for future System Manager functionality).

Linked to

Calls up the variable link Selection Diagram.

Comment

User-defined comment on the physical I/O variable.

2nd option

Select the terminal in the tree view and then go to the channel required in the dialogue on the right-hand side. In the dialogue, all physical I/O variables are listed. Here you can link the process data in/outputs and possible terminal Control/Status information with task variables (Selection Diagram).

Terminal Configuration 3:

Details about the various Beckhoff Bus Terminals are described under Terminals - Technical Reference.