Publishing Variables in the Controller

Overview

Publish variables in the controller part of the EcoStruxure Machine Expert application within the Symbol configuration editor.

WARNING
	UNINTENDED EQUIPMENT OPERATION Use “naturally” aligned variables for exchange with the Symbol configuration. Failure to follow these instructions can result in death, serious injury, or equipment damage.

For further information on “natural alignment”, refer to Attribute pack_mode.

Publishing Variables in the Symbol Configuration Editor

To publish variables within the Symbol configuration editor, proceed as follows:

Step	Action
1	Create a Symbol Configuration node under the Application node in the Tools tree as described in the Adding a Symbol Configuration chapter.
2	Double-click the Symbol Configuration node to open the Symbol configuration editor.
3	In the Symbol configuration editor, select those elementary variables that you wish to publish for communication with 1 or several HMI terminals by selecting or deselecting the check box in the Symbols column: You can also assign read/write access rights to each variable individually in the Access Rights column. For further information, refer to the description of the Symbol configuration editor. For using symbol sets, refer to Creating Symbol Sets Allowing Different Access Rights for Different Control Clients. Note: Only variables on elementary data types are available for interchange with HMI terminals.
4	For your settings to become valid, click the Download link in the Symbol configuration editor.

NOTE: The publishing mechanism consumes an overhead of about 50 Kbyte in the controller. Each published variable consumes 11 bytes within the controller application.