Function blocks
Function blocks for TwinSAFE logic components 97
3.10 The function block RS
3.10.1 Functional description
The FB RS realizes a reset / set functionality.
Logic 1 at input Set and logic 0 at input Reset leads to logic 1 at the output.
Logic 0 at input Set and logic 1 at input Reset leads to logic 0 at the output.
If both inputs are set to logic 1, the Reset signal is dominant and leads to logic 0 at the output.
If both inputs are logic 0, the output remains in its current state.
Figure 3-46: RS function block
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