Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 248

Processing details
• These instructions add the 32-bit binary data in the device specified by (s1) and the 32-bit binary data in the device
specified by (s2), and store the operation result in the device specified by (d).
(s1)
(s1)+1
b31 b16 b15 b0
··· ···
567890 (BIN) +
• If an overflow occurs in the result, the carry bit is ignored. In this case, SM700 does not turn on.
[D+(P) instruction]
(s1)
(s1)+1
b31 b16 b15 b0
··· ···
1234567890 (BIN) +
(s1)
(s1)+1
b31 b16 b15 b0
··· ···
-1234567890 (BIN) +
[D+(P)_U instruction]
(s1)
(s1)+1
b31 b16 b15
··· ··· b0
3456789012 (BIN) +
Operation error
There is no operation error.
6 BASIC INSTRUCTIONS
246
6.2 Arithmetic Operation Instructions
(s2)
(s2)+1 (d)+1
b31 b16 b15 b0 b31
··· ··· ···
123456 (BIN) 691346 (BIN)
(s2)
(s2)+1 (d)+1
b31 b16 b15 b0 b31
··· ···
987654321 (BIN) 74738564 (BIN)
(s2)
(s2)+1 (d)+1
b31 b16 b15 b0 b31
··· ···
-987654321 (BIN) -74738563 (BIN)
(s2)
(s2)+1 (d)+1
b31 b16 b15 b31
··· ··· b0 ···
1234567890 (BIN) 396389607 (BIN)
(d)
b16 b15 b0
···
(d)
b16 b15 b0
··· ···
(d)
b16 b15 b0
··· ···
(d)
b16 b15
··· b0