Siemens SIMATIC S7-300 Reference Manual page 30

Basic instructions
Transfer
✔ ✔ ✔
Transfer
✔ ✔ ✔
Transfer accumulator 1 to status word
✔ ✔ ✔
Switch AR1 and AR2
✔ ✔ ✔
Transfer AR1 to accumulator 1
✔ ✔ ✔
Transfer AR1 to double word
✔ ✔ ✔
Transfer AR1 to AR2
✔ ✔ ✔
Transfer AR2to accumulator 1
✔ ✔ ✔
Transfer AR2 to double word
Legacy
✔ ✔ ✔
Implement sequencer
✔ ✔
Implement sequencer
✔ ✔ ✔
Discrete control-timer alarm
✔ ✔ ✔
Motor control-timer alarm
✔ ✔ ✔
Compare input bits with the bits of a mask
✔ ✔ ✔
Compare scan matrix
✔ ✔ ✔
Lead and lag algorithm
✔ ✔ ✔
Create bit pattern for seven-segment display
✔ ✔ ✔
Create tens complement
✔ ✔ ✔
Count number of set bits
A5E33285102-AB
Extended instructions
Description
Technology
STL
LAD / FBD
(not S7-1200)
nn
T STW
CAR
TAR1
TAR1 <D>
TAR1 AR2
TAR2
TAR2 <D>
DRUM
DRUM_X
DCAT
MCAT
IMC
SMC
LEAD_LAG
SEG
BCDCPL
BITSUM
Communication
SCL
T nn
nn
nn
nn
nn
nn
nn
nn
Page 29