Tab ‘<device name> IEC Objects’¶

Hint

Please note that manually creating another instance of the device object can lead to malfunctions.

In this tab of the generic device editor, “objects” are listed that allow access to the device from the IEC application. In online mode, this is used as monitoring view.

For devices for which a function block instance is created implicitly, at least this instance is listed as an object here in the table. This instance can be used, for example, in order to restart a bus or to query information from the application. The device type determines whether this kind of device instance is available and which access options is has. Please refer to the help for the special device configuration.

Instances of function blocks that are mapped to inputs and outputs of the device are also displayed here. The mapping of a function block to a channel is defined in the <device name> I/O Mapping tab. The Go to instance command takes you directly to the affected object from there.

In addition, you can add additional objects in the table here, that are not yet mapped to a device input or output.

In online mode, you can use the table of IEC objects as a monitoring view. It also shows the current value, the address, and the comment for the function block variable at the channel. Finally, it provides the capability of writing and forcing values.

Add Edit	Opens the Select function block dialog for creating a new instance or for editing the instance selected in the table.
Delete	Deletes the selected entry.
Go to variable	Jumps from the selected entry directly to the corresponding mapping in the <device name> I/O Mapping tab.
Variable	The object name comprises the device name and the function block name. Example: `EL2004_Relay`. Changing the device name has an immediate effect. The part of the name after the device name is editable here.
Mapping	Mapping type, as in the <device name> I/O Mapping tab
Type	Data type: Here it is the name of the function block.
Value Prepared value Address Comment	In online mode only: Display of the current value, the address, and the comment for the variable at the channel. Moreover, the option of specifying a value for writing or forcing the variable.