Siemens CPU 414-2 - Integer Math (32 Bits); +D; -D; *D

Integer Math (32 Bits)
63
S7-400 Instruction List
A5E00267845-01
Integer Math (32 Bits)
Math instructions on two 32-bit words. The result is written to ACCU1. ACCU3 and ACCU4 are then transferred to ACCU2 and ACCU3.
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
+D Add 2 integers (32-bit)
(ACCU1)=(ACCU2)+(ACCU1)
1 0.1 0.06 0.04 0.03
–D Subtract 2 integer from another (32 bits)
(ACCU1)=(ACCU2)-(ACCU1)
1 0.1 0.06 0.04 0.03
*
D Multiply 2 integer by another (32 bits)
(ACCU1)=(ACCU2)
*
(ACCU1)
1 0.1 0.06 0.04 0.03
Status word for: +D, –D,
*
D, /D BR CC1 CC0 OV OS OR STA RLO /FC
Instruction evaluates: – – – – – – – – –
Instruction affects: – Yes Yes Yes Yes – – – –