Page 206 - Basic Course

KNX BASIC COURSE

selected the room name for all elements, it is now simple to create the correct text using
“Find and Replace” (as shown earlier).

8.2 Undo function

When you are working on a project, you often face the issue of restoring an intermediate
state, when wishing to do certain things in a different way.

The function called “Undo / Redo” can be used for this purpose. It allows reversing a
number of steps or restoring them under certain conditions.

Figure 37: Undo/Redo in the toolbar / List of reversible actions

For this, ETS saves all the actions of the project engineer. The maximum number of
actions that are saved can be set via “Settings” – “Presentation General” between 0 and
200. If this number is reached and there are further entries, the oldest entry is always
overwritten. Since all the previous actions are also displayed in a list, you are able to
reverse a series of actions in one go, especially if they are directly linked to each other
(example: Find and Replace steps). This function however also consumes performance
resources. When you for instance use the complex “Copy with options” function described
before for entire building structures, you have to basically calculate about twice the time
for this action compared to when not using this option. The option can therefore also be
switched off (with the value 0).

Home and Building Management Systems KNX Association
KNX Project Design with ETS: Advanced ETS4_Planning complex_E0411c 30/59