Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual page 187

Processing details
• These instructions add the 16-bit binary data in the device specified by (s1) and the 16-bit binary data in the device
specified by (s2), and store the addition result in the device specified by (d).
(s1)
b15 b0 b15
···
5678 (BIN) + 1234 (BIN)
• When underflow or overflow occurs in the operation result, the following processing is executed. In this case, the carry flag
(SM700, SM8022) does not turn ON.
In case of +(P)
(s1)
b15 b0 b15
···
2
32767 (BIN) +
(s1)
b15 b0 b15
···
-32768 (BIN) + -2
In case of +(P)(_U)
(s1)
b15 b0 b15
···
65535 (BIN) + 2
Operation error
There is no operation error.
(s2) (d)
b0 b15
··· ···
6912 (BIN)
(s2) (d)
b0 b15
··· ···
(BIN) -32767 (BIN)
(s2) (d)
b0 b15
··· ···
(BIN) 32766 (BIN)
(s2) (d)
b0 b15
··· ···
(BIN) 1 (BIN)
b0
b0
b0
b0
7.2 Arithmetic Operation Instructions
7 BASIC INSTRUCTIONS
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