FATEK FBs-CB5 - Page 153

Basic Function Instruction
6-28
FUN 13 D P
（＊）
MULTIPLICATION
(Performs multiplication of the data specified at Sa and Sb and stores the result in D)
FUN 13 D P
（＊）
Symbol
Operand
Sa: Multiplicand
Sb: Multiplier
D : Destination register to store the
results of the multiplication.
Sa, Sb, D may combine with V, Z,
P0~P9 to serve indirect addressing
WX WY WM WS TMR CTR HR IR OR SR ROR DR K XR
Range
Ope-
rand
WX0
∣
WX240
WY0
∣
WY240
WM0
∣
WM1896
WS0
∣
WS984
T0
∣
T255
C0
∣
C255
R0
∣
R3839
R3840
∣
R3903
R3904
∣
R3967
R3968
∣
R4167
R5000
∣
R8071
D0
∣
D4095
16/32-bit
+/− number
V、Z
P0~P9
Sa ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Sb ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
D ○ ○ ○ ○ ○ ○ ○ ○* ○* ○ ○
Description
● Performs the multiplication of the data specified at Sa and Sb and writes the results to a specified register
D when the multiplication control input "EN" =1 or "EN↑" ( P instruction) from 0 to 1. If the product of
multiplication is equal to 0 then set FO0 to 1. If the product is a negative number, then set FO1 to 1.
Example 1 16-bit multiplication
Ladder Diagram Key Operations Mnemonic Codes
X0
EN
R
R
R
0
1
2
13P.(*)
D=0
D<0
U/S
Sa :
Sb :
D :
ORG
ORG X 0
FUN 13P
Sa： R 0
Sb： R 1
D： R 2
R0
Sa
12345
Multiplicand
R1
× Sb
4567
Multiplier
R3 R2
D
56379615
Product