Lenze DDS Function library Drive - Manual (Page 44)

2.3.5 Logical NOT (L_NOT)
Function library LenzeDrive.lib
Digital signal processing
2−34
L
LenzeDrive.lib EN 1.7
2.3.5 Logical NOT (L_NOT)
This FB enables the logical inversion of digital signals. You can use this FB for the control of functions
or the generation of status information.
bIn_b bOut_b
1
L_NOT
Fig. 2−41 Logical NOT (L_NOT)
VariableName DataType SignalType VariableType Note
bIn_b Bool binary VAR_INPUT
bOut_b Bool binary VAR_OUTPUT
Truth table
bIn_b bOut_b
0 1
1 0
0 = FALSE
1 = TRUE
The function corresponds to a change from a normally−open contact to a normally−closed contact
in a control with contactors.
bIn_b
bOut_b
Fig. 2−42 Function of L_NOT as a change from a normally−open to a normally−closed contact