Accumulator Transfer Instructions, Incrementing and Decrementing
79
S7-400 Instruction List
A5E00267845-01
Accumulator Transfer Instructions, Incrementing and Decrementing
The status word is not affected.
Instruc-
Address
Description
Length
in
Execution Time in
s
Instruc-
tion
Address
ID
Description
Length
in
Words
CPU 412
CPU 414
CPU 416
CPU 417
CAW
Reverse the order of the bytes in ACCU1-L.
1
0.1
0.06
0.04
0.03
CAD
Reverse the order of the bytes in ACCU1.
1
0.1
0.06
0.04
0.03
TAK
Swap the contents of ACCU1 and ACCU2
1
0.1
0.06
0.04
0.03
ENT
The contents of ACCU2 and ACCU3 are
transferred to ACCU3 and ACCU4.
1
0.1
0.06
0.04
0.03
LEAVE
The contents of ACCU3 and ACCU4 are
transferred to ACCU2 and ACCU3.
1
0.1
0.06
0.04
0.03
PUSH
The contents of ACCU1, ACCU2 and ACCU3
are transferred to ACCU2, ACCU3 and
ACCU4
1
0.1
0.06
0.04
0.03
POP
The contents of ACCU2, ACCU3 and ACCU4
are transferred to ACCU1, ACCU2 and
ACCU3
1
0.1
0.06
0.04
0.03