17 function library, 1 function blocks, Function library – Lenze 8400 StateLine User Manual

Page 909: Function blocks, Function, Library

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Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14

909

17

Function library

17.1

Function blocks

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

17

Function library

17.1

Function blocks

This chapter describes the function blocks which are available for the controller in the FB Editor.

Overview of function blocks available

The system blocks are described in the following chapter "

System blocks

".

( 990)

Function block

Runtime Function

L_Absolute_1

2 μs

... converts a bipolar input signal into a unipolar output signal.

L_AddSub_1

3 μs

... adds / subtracts analog input signals.

L_AnalogSwitch_1

L_AnalogSwitch_2

L_AnalogSwitch_3

2 μs

... switches between two analog input signals.

L_And_1

L_And_2

L_And_3

2 μs

... ANDs three binary signals.

L_Arithmetik_1

L_Arithmetik_2

7 μs

... combines two analog signals arithmetically.

L_Arithmetik_2 is available from version 11.00.00 onwards.

L_Compare_1

L_Compare_2

L_Compare_3

5 μs

... compares two analog signals and can be used e.g. to implement a

trigger.

L_Compare_3 is available from version 11.00.00 onwards.

L_DFlipFlop_1

1 μs

... provides two stable states depending on the input signals.

L_DigitalDelay_1

2 μs

... delays binary signals.

L_DigitalLogic_1

L_DigitalLogic_3

2 μs

... provides a binary output signal which is generated by the logic

combination of three input signals.

L_DigitalLogic_3 is available from version 11.00.00.

L_GainOffset_1

L_GainOffset_2

L_GainOffset_3

3 μs

... can amplify an analog input signal and then add an offset to it.

• Gain and offset can be set via FB inputs.

L_Interpolator_1

5 μs

... can interpolate a position setpoint and/or an analog value e.g. to

compensate for larger bus transmission cycles or to continue signal

characteristics if data telegrams are missing.

L_JogCtrlExtension_1

5 μs

... can be connected upstream to the

L_NSet

ramp generator to

implement a switch-off positioning at limit switch.

L_MPot_1

10 μs

... replaces a hardware motor potentiometer as setpoint source.

L_MulDiv_1

4 μs

... multiplies the analog input signal with a factor.

L_Negation_1

2 μs

... negates an analog input signal.

L_Not_1

L_Not_2

L_Not_3

2 μs

... inverts a digital input signal.

L_NSet_1

50 μs

... contains a ramp generator with comprehensive parameterisation and

control options to condition a setpoint signal.

L_OffsetGain_1

L_OffsetGain_2

4 μs

... can add an offset to an analog input signal and amplify it afterwards.

• Offset and gain can be set via FB inputs.

L_OffsetGainP_1

L_OffsetGainP_2

L_OffsetGainP_3

17 μs

... can add an offset to an analog input signal and amplify it afterwards.

• Offset and gain can be set via parameters.

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