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Lenze 8400
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17 Function library
17.1 Function blocks | L_DigitalLogic_3
1375
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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Parameters
Function 4
If the function 4 is selected in C00828
, the output values depend on the truth table parameterised
in C00829/1...24
.
The following table shows which setting may be required in C00829/1...24
to realise the logic
operations NAND, NOR, XOR and XNOR:
Parameters Possible settings Info
C00828
Function selection
0 "0" Constant value "FALSE"
1 "1" Constant value "TRUE"
2AND operation
bOut2 and bOut3 are available
from version 16.00.00 onwards
3OR operation
bOut2 and bOut3 are available
from version 16.00.00 onwards
4 bOut = f (truth table)
bOut2 = f (truth table)
bOut3 = f (truth table)
The output value depends on the
truth table parameterised in
C00829/1...24
bOut2 and bOut3 are available
from version 16.00.00 onwards
C00829/1...24
Truth table for function "4: bOut = f
(truth table)"
Each of the eight possible input
combinations can be assigned to
the output value FALSE or TRUE.
For an application example see
the following section.
0FALSE
1TRUE
Input signals Output Parameter setting for logic operation
bIn3 bIn2 bIn1 bOut bOut2 bOut3 NAND NOR XOR XNOR
000C00829/1
C00829/9 C00829/17 =1101
001C00829/2 C00829/10 C00829/18 =1010
010C00829/3
C00829/11 C00829/19 =1010
011C00829/4
C00829/12 C00829/20 =1001
100C00829/5
C00829/13 C00829/21 =1010
101C00829/6
C00829/14 C00829/22 =1001
110C00829/7
C00829/15 C00829/23 =1001
111C00829/8
C00829/16 C00829/24 =0001
bOut bIn1 bIn2 bIn3∧∧=
bOut2 bIn1 bIn2 bIn3∧∧=
bOut3 bIn1 bIn2 bIn3∧∧=
bOut bIn1 bIn2 bIn3∨∨=
bOut2 bIn1 bIn2 bIn3∨∨=
bOut3 bIn1 bIn2 bIn3∨∨=

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