ITcSmTreeItem Item Sub Types: E-Bus

Due to their architecture, E-Bus boxes , terminals and modules will be handled differently than their K-Bus counterparts, e.g. during creation using the CreateChild() method. As each K-Bus terminal will be specified according to its specific sub type, E-Bus terminals are recognized via one common sub type and then specified via their "Product Revision " which will be used as the vInfo parameter in the CreateChild() method.

Sub type	Description
9099	Generic sub type for all EtherCAT terminals. In case of CreateChild(), a specific terminal will be defined via vInfo parameter.

There are a few exceptions to this rule, e.g. for RS232 terminals. The following table gives an overview about these exceptions:

I/O	ItemSubType	Description
EP6002	9101	RS232 / RS422 / RS485 interface terminal
EL6001	9101	RS232 interface terminal
EL6002	9101	RS232 interface terminal (2-Channel)
EL6021	9103	RS422 / RS485 interface terminal
EL6022	9103	RS422 / RS485 interface terminal (2-Channel)

Code Snippet (C#)


ITcSmTreeItem ek1100 = systemManager.LookupTreeItem("TIID^EtherCAT Master^EK1100");
ek1100.CreateChild("EL2002 - 1", 9099, "", "EL2002-0000-0016");

Product revision

Each E-Bus box/terminal/module has its own product revision, which you can view either by exporting its XML description or in the "Add Device" dialog in TwinCAT XAE.

ITcSmTreeItem Item Sub Types: E-Bus 1:

For example, the EL2002 digital output terminal has the product revision EL2002-0000-0016, as you can also see in its XML description:

ITcSmTreeItem Item Sub Types: E-Bus 2:

To get the XML description of a tree item, simply do the following:

TwinCAT 2: Add the item to System Manager, select it and, from the menu, choose "Actions" --> "Export XML description"
TwinCAT 3: Add the item to XAE, select it and, from the menu, choose "TwinCAT" --> "Selected item" --> "Export XML description"