Swap Bytes; Move And Swap Examples; Example Of Move And Swap Instructions For Simatic Lad, Stl, And Fbd - Siemens SIMATIC S7-200 System Manual

Swap Bytes

L
A
EN
D
F
IN
B
D
S
T
SWAP
L
221 222 224
Inputs/Outputs
IN VW, IW, QW, MW, SW, SMW, LW, T, C, AC, *VD, *AC, *LD

Move and Swap Examples

I2.1
I2.1
VB50
Figure 9-30
S7-200 Programmable Controller System Manual
A5E00066097-02
The Swap Bytes instruction exchanges the most
significant byte with the least significant byte of the word
SWAP
ENO
(IN).
Error conditions that set ENO = 0: SM4.3 (run-time),
0006 (indirect address)
IN
226
Operands
LAD
MOV_B
EN
ENO
VB50 IN OUT AC0
SWAP
EN ENO
AC0 IN
MOV_B
EN ENO
IN OUT AC0 AC0 IN
Move
VB50 C3
move
C3
AC0

Example of Move and Swap Instructions for SIMATIC LAD, STL, and FBD

LD I2.1
MOVB VB50, AC0
SWAP AC0
FBD
SWAP
EN ENO
Application
Swap
AC0 D6 C3
swap
C3 D6
AC0
SIMATIC Instructions
Data Types
WORD
STL
9-105