Mitsubishi Electronics FX3G User Manual
280
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
10 Arithmetic and Logical Operation (
+, −, ×, ÷) – FNC 20 to FNC 29
10.4 FNC 23 – DIV / Division
Program examples
1. 16-bit operation
2. 32-bit operation
Function Changes According to Versions
The function of the FNC 23 instruction varies depending on the PLC version shown in the table below.
Compatible Versions
Item
Function Summary
FX
3S
FX
3G
FX
3GC
FX
3U
FX
3UC
Ver. 1.00
or later
Ver. 1.00
or later
Ver. 1.40
or later
Ver. 2.30
or later
Ver. 2.30
or later
Zero Flag
Turns M8304 ON when the operation result of DIV
instruction is 0.
instruction is 0.
Carry Flag
Turns M8306 ON when the operation result of DIV
instruction overflows.
16-bit operation: Only when the maximum negative value
instruction overflows.
16-bit operation: Only when the maximum negative value
(-32,768) is divided by -1.
32-bit operation: Only when the maximum negative value
(-2,147,483,648) is divided by -1.
X000
D
FNC 23
DIV
D 0
D 2
D 4
S
1
S
2
Dividend Divisor Quotient Remainder
(D 0)
÷ (D 2) → (D 4) ... (D 5)
100 33 3 1
X001
FNC 23
DDIV
D 0
D 2
D 4
S
1
S
2
D
Dividend Divisor Quotient Remainder
(D 1,D 0)
÷ (D 3,D 2) → (D 5,D 4) ... (D 7,D 6)
100,000 3333 30 10