Toggle Bit - S7

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{{PLC Archive
{{PLC Archive
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| page_title=S7 Function Block Toggle with Set/Reset override.
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| page_title=S7 - Toggle function with Set/Reset override.
| author_name=Helge Slettvoll
| author_name=Helge Slettvoll
| program_filename=HSLE_FB108.pdf
| program_filename=HSLE_FB108.pdf
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| abstract=Function Block with three input bits: Toggle, Set and Reset. Status output bit changes status accordingly.
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| abstract=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.
Helper bits are kept in instance data blocks, thus reducing the risk of typical copy/paste errors and simplifying memory allocation.
[[File:FB108DB171.jpg]]
[[File:FB108DB171.jpg]]
}}
}}

Current revision as of 08:53, 17 August 2010


S7 - Toggle function with Set/Reset override.

contributed by: Helge Slettvoll

Link to File

Click here to view program file.

Abstract

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.

File:FB108DB171.jpg

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