Displaying or hiding tag information - STEP 7

Introduction

You can display the following information about the tags to be used in the Program editor:

• Name of the tag

• Tag addresses

• Simple or hierarchical comments to document the tags

The information is taken from the block interface for local tags and DB tags and from the PLC tag table for tags that are valid CPU-wide.

You can display the tag information either for all the blocks or for individually opened blocks. If you display the tag information for all the blocks, the tag information for all the blocks currently opened and opened in future is shown. You can hide the tag information at any time again. If you have hidden the tag information for all blocks, you can display it again for individual blocks that are open.

When you select the display of tag information with hierarchical comments, the comments of the higher structure levels are also displayed for structured tags. The comments are shown in brackets after the tag comment; the comments of the individual levels are separated by a dot. If there is no comment for a tag on a structure level, it is not displayed. This is indicated by two successive dots.

You can display the tag information either collectively below a LAD/FBD network or directly at the respective operand. As with showing and hiding tag information, you can set this via the settings for all block or change specifically for an opened block.

Displaying or hiding tag information for all the blocks

Proceed as follows to display or hide the tag information for all the blocks:

1. Select the "Settings" command in the "Options" menu.

   The "Settings" window is displayed in the work area.

2. In the area navigation, select the "PLC programming" group.

3. If you want to display the tag information, select the "Show" option or the "Tag information with hierarchical comments" option in the drop-down list, depending on whether you want to display simple or hierarchical comments.

4. Use the "Position of the tag information (LAD/FBD)" drop-down list to specify whether the tag information is to be displayed below the LAD/FBD network or on the operand.

   For all open blocks, the tag information is shown and displayed at the selected position. If you open additional blocks the tag information for these blocks is also shown.

5. If you want to hide the tag information, select the option "Hide" in the "Tag information" drop-down list.

   The tag information is hidden for all open blocks. If you open additional blocks the tag information for these blocks is also hidden.

Displaying or hiding tag information for an opened block

Proceed as follows to display or hide the tag information for an opened block:

1. If you want to display the tag information, select the "Show tag information" option or the "Tag information with hierarchical comments" option in the "Shows the tag information" drop-down list, depending on whether you want to display simple or hierarchical comments.

2. To define the position of the tag information, click the "Position of the tag information (LAD/FBD)" button in the program editor toolbar. The position changes with each click on the button. Alternatively, you can click the small arrow beside the "Position of the tag information (LAD/FBD)" button to open the drop-down list. Than select the position from the drop-down list.

   The tag information is shown and displayed at the selected position.

3. If you want to hide the tag information, select the option "Hide tag information" in the "Shows the tag information" drop-down list.

   The tag information is hidden.