Siemens Simatic S7 Series

Program instructions
7.11 Logical operations
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
293
7.11
Logical operations
7.11.1
Invert
LAD / FBD
STL
Description
INVB OUT
INVW OUT
INVD OUT
The Invert Byte, Invert Word, and Invert Double Word instructions form the one's
complement of the input IN and load the result into the memory location OUT
Non-fatal errors with ENO = 0
SM bits affected
• 0006H Indirect address • SM1.0 Result of operation = zero
Input / output
Data type
Operand
IN
BYTE
IB, QB, VB, MB, SMB, SB, LB, AC, *VD, *LD, *AC, Constant
WORD
IW, QW, VW, MW, SMW, SW, T, C, LW, AC, AIW, *VD, *LD, *AC, Constant
DWORD
ID, QD, VD, MD, SMD, SD, LD, AC, HC, *VD, *LD, *AC, Constant
OUT BYTE IB, QB, VB, MB, SMB, SB, LB, AC,*VD, *LD, *AC
WORD
IW, QW, VW, MW, SMW, SW, T, C, LW, AC, *VD, *LD, *AC
DWORD ID, QD, VD, MD, SMD, SD, LD, AC, *VD, *LD, *AC
Example: Invert instruction
LAD
STL
Invert word value in AC0. Result is put in
AC0.
Network 1
LD I4.0
INVW AC0