Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual page 216

Processing details
• These instructions multiply the 32-bit binary data in the device specified by (s1) by the 32-bit binary data in the device
specified by (s2), and store the multiplication result in the device specified by (d).
(s1)
(s1)+1
b31 b16 b15 b0
··· ···
567890 (BIN) ×
• When (d) is a bit device, only the lower 32 bits of the multiplication result are stored and the upper 32 bits cannot be
specified. If the upper 32 bits data of the multiplication operation result are required, temporarily store the result in a word
device, and transfer the data stored in word device ((d)+2) and ((d)+3) to the specified bit devices.
Ex.
Multiplication result when (d) is a bit device
• K1 ... Lower 4 bits (b0 to b3)
• K4 ... Lower 16 bits (b0 to b15)
• K8 ... Lower 32 bits (b0 to b31)
Operation error
Error code Description
(SD0/SD8067)
2820H The range of the device specified by (d) exceeds the range of said device.
7 BASIC INSTRUCTIONS
214
7.2 Arithmetic Operation Instructions
(s2)
(s2)+1 (d)+3
b31 b16 b15 b0 b63
··· ··· ···
123456 (BIN)
(d)+2 (d)
(d)+1
b48 b47 b32 b31 b16 b15 b0
··· ··· ···
70109427840 (BIN)