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Function library LenzeDrive.lib

Digital signal processing

2.3.6 Logical OR (L_OR)

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LenzeDrive.lib EN 1.7

2.3.6 Logical OR (L_OR)

This FB enables the logical OR combination of digital signals. You can use this combination for the

control of functions or the generation of status information.

L_OR

bIn1_b

bIn2_b

bIn3_b

bOut_b

Fig. 2−43 Logical OR (L_OR

VariableName DataType SignalType VariableType Note

bIn1_b Bool binary VAR_INPUT

bIn2_b Bool binary VAR_INPUT

bIn3_b Bool binary VAR_INPUT

bOut_b Bool binary VAR_OUTPUT

Truth table

bIn1_b bIn2_b bIn3_b bOut_b

0 0 0 0

1 0 0 1

0 1 0 1

1 1 0 1

0 0 1 1

1 0 1 1

0 1 1 1

1 1 1 1

0 = FALSE

1 = TRUE

The function corresponds to a parallel connection of normally−open contacts in a contactor control.

bIn2_b

bIn1_b

bIn3_b

bOut_b

Fig. 2−44 Function of L_OR as a parallel connection of normally−open contacts

Note!

If you only need 2 inputs, use the inputs bIn1_b and bIn2_b. Fix the input bIn3_b to FALSE.

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Lenze DDS Function library Drive Manuel d'utilisateur Page 45