Toggle Bit - S7

From ControlWiki

Jump to: navigation, search

S7 - Toggle function with Set/Reset override.

contributed by: Helge Slettvoll

Link to File

Click here to view program file.


Function Block with three input bits: Toggle, Set and Reset. Status output bit changes accordingly - from 0 to 1 or from 1 to 0 on rising edge of Toggle input.

Set and Reset input overrides Toggle input. If Set and Reset are both 1, then Status is 0 (Reset dominant).

Helper bits are kept in instance data blocks, thus reducing the risk of typical copy/paste errors and simplifying memory allocation.



For all material in the PLC Archive, our site disclaimer applies. You take full responsibility for the application of any code appearing on this site, as we have made no engineering evaluation of the code nor are we, or the author, familiar with the details and risks inherent in your application.

Personal tools