Lenze 8400 motec - Manual (Page 471)

Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05 471
12 Function library
12.9 L_DigitalLogic_1
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Parameter
Function "4: bOut = f (Truth table)"
When the function "4: bOut = f (truth table)" is selected in
C00820 , the output value bOut depends
on the truth table parameterised in C00821/1...4 .
The following table shows which setting may be required in C00821/1...4 to realise the logic
operations NAND, NOR, XOR and XNOR:
Parameter Possible settings Info
C00820 Function selection
0 bOut = 0 Constant value "FALSE"
1 bOut = 1 Constant value "TRUE"
2 bOut = bIn1 AND bIn2 AND operation
3 bOut = bIn1 OR bIn2 OR operation
4 bOut = f (truth table) The output value depends on the
truth table parameterised in
C00821/1...4
C00821/1...4 Truth table for function 4
• Each of the four possible input
combinations can be assigned to
the output value FALSE or TRUE.
• For an application example see
the following section.
0 FALSE
1 TRUE
Input signals Output Parameter setting for logic operation:
bIn2
C00701/29
bIn1
C00701/28
bOut NOT (bIn1) NAND NOR XOR XNOR
0 0 C00821/1 = 1 1 1 0 1
0 1 C00821/2 = 0 1 0 1 0
1 0 C00821/3 = 1 1 0 1 0
1 1 C00821/4 = 0 0 0 0 1