Loading And Transferring The Registers In Stl - Siemens SIMATIC S7-1200 Reference Manual

Basic instructions
✔ ✔ ✔
Rotate right double word by double word
✔ ✔ ✔
Rotate left double word by double word
✔ ✔ ✔
Rotate left by status bit CC 1
✔ ✔ ✔
Rotate right by status bit CC 1

Loading and transferring the registers in STL

Information on S7-400: The controllers have four accumulators. You will find only the instructions for two accumulators in the
list below.
Loading
Loading
✔ ✔ ✔
✔ ✔ ✔ Load status word in accumulator 1
✔ ✔ ✔ Load AR1 with contents of accumulator 1
✔ ✔ ✔ Load AR1 with double word or area pointer
✔ ✔ ✔ Load AR1 with contents of AR2
✔ ✔ ✔ Load AR2 with contents of accumulator 1
✔ ✔ ✔ Load AR2 with double word or area pointer
Transfer
Transfer
✔ ✔ ✔
✔ ✔ ✔ Transfer accumulator 1 to status word
✔ ✔ ✔ Switch AR1 and AR2
✔ ✔ ✔ Transfer AR1 to accumulator 1
A5E33284667-AF
Extended instructions
Description
Technology
STL
LAD/FBD
(not S7-1200)
SHR RRD
SHL RLD
RLDA
RRDA
nn
L STW
LAR1
LAR1 <D>
LAR1 AR2
LAR2
LAR2 <D>
nn
T STW
CAR
TAR1
Communication
SCL
SHR
SHL
nn
nn
L nn
nn
nn
nn
nn
nn
nn
T nn
nn
nn
nn
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