Adding an Expansion Module

Procedure

To add an expansion module to your controller, select the expansion module in the Hardware Catalog, drag it to the Devices tree, and drop it on one of the highlighted nodes.

For more information on adding a device to your project, refer to:

• Using the Drag-and-drop Method

• Using the Contextual Menu or Plus Button

NOTE: To install physically a TM2 expansion I/O module, first install a TM2DOCKN adaptor module. However, the TM2DOCKN does not appear in the Devices tree.

NOTE: You cannot use TM2 modules in configurations that include the TM3 transmitter and receiver modules.

I/O Configuration

Step	Action
1	In the Devices tree, double-click the expansion module you added. Result: The I/O Mapping tab is displayed.
2	Select the I/O Configuration tab.

Step

Action

In the Devices tree, double-click the expansion module you added.

Result: The I/O Mapping tab is displayed.

Select the I/O Configuration tab.

I/O Mapping Tab Description

Variables can be defined and named in the I/O Mapping tab. Additional information such as topological addressing is also performed in this tab.

The I/O Mapping tab contains these columns:

Column	Description
Variable	Lets you map the channel to a variable. Double-click the variable icon to enter the variable name; if it is a new variable, the variable is created. You can also map a channel to an existing variable using the variables. Click the ... button to access Input Assistant. New variables are automatically created on each channel according to the Automatic I/O mapping project option settings.
Mapping	An icon indicates if the channel is mapped to a new variable or an existing variable.
Channel	Name of the channel of the device
Address	Address of the channel
Type	Data type of the channel
Current Value	Current value of the channel, displayed in online mode
Default Value	Double-click to change the default value. NOTE: The default value is applied to the I/O memory variable during certain states assumed by the controller. For more information on when and how the value is applied, see the Programming Guide of your controller.
Unit	Unit of the channel value
Description	Description of the channel. Double-click to enter a description.
Always update variables	Enabled 1 (use bus cycle task if not used in any task) Not editable.

NOTE: Expansion I/Os are always physically updated by the MAST task.

I/O Configuration Tab Description

Digital expansion modules are configured using the I/O Configuration tab.

The I/O Configuration tab contains these columns:

Column	Description	Editable
Parameter	Parameter name	No
Type	Parameter data type	No
Value	Value of the parameter	If the parameter is editable, double-click the field to select or to enter a value.
Default Value	Default parameter value	No
Unit	Unit value of the parameter	No
Description	Short description of the parameter	No

NOTE: If a parameter is unavailable, the row is grayed.