Delta Electronics VFD-E manual Quotient Remainder, Inc

Appendix D How to Use PLC Function

API	Mnemonic			Operands							Function
23	DIV		P		S1, S2, D						Division
Type	Bit Devices					Word devices					Program Steps
OP	X	Y	M	K	H	KnX	KnY	KnM	T	C	D DIV, DIVP: 7 steps
S1				*	*	*	*	*	*	*	*
S2				*	*	*	*	*	*	*	*
D							*	*	*	*	*
Operands:
S1: Dividend		S2: Divisor		D: Quotient and remainder

Explanations:

1.In 16-bit instruction, D occupies 2 consecutive devices.

2.This instruction divides S1 and S2 in BIN format and stores the result in D. Be careful with the positive/negative signs of S1, S2 and D when doing 16-bit and 32-bit operations.

16-bit instruction:

Quotient Remainder

+1

/ =

Program Example:

When X0 = On, D0 will be divided by D10 and the quotient will be stored in D20 and remainder in D21. On/Off of the highest bit indicates the positive/negative status of the result value.

X0

DIV D0 D10 D20

DIV D0 D10 K4Y0

API

24

Mnemonic		Operands	Function
INC	P	D	Increment

Type	Bit Devices					Word devices					Program Steps
OP	X	Y	M	K	H	KnX	KnY	KnM	T	C	D INC, INCP: 3 steps
D							*	*	*	*	*

Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11 D-55