Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Ebcd, DEBCD, Debcdp

DVP - ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

API

118

Mnemonic Operands Function Controllers

D	EBCD	P	Float to scientific conversion	ES2/EX2	SS2	SA2 SX2
						SE

Type

Bit Devices

Word devices

Program Steps

OP

X

Y

M

S

K

H

KnX

KnY

KnM

KnS

T

C

D

E

F

DEBCD, DEBCDP: 9

steps

S

*

D

*

PULSE

16-bit

32-bit

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

ES2/EX2

SS2

SA2

SX2

SE

SE

SE

Operands:

S: Source device

D: Conversion result

Explanation

1.The instruction converts the binary floating point value in S to decimal floating point value and stores the results in the register specified by D.

2.PLC floating point is operated by the binary floating point format. DEBCD instruction is the specific instruction used to convert binary floating point to decimal floating point.

3.Flag: M1020 Zero flag, M1021 Borrow flag, M1022 Carry flag

If absolute value of the result exceeds the max. floating point value, carry flag M1022 = ON.

If absolute value of the result is less than the min. floating point value, borrow flag M1021 = ON. If the conversion result is 0, zero flag M1020 = ON.

Program Example:

When X0 = ON, the binary floating point value in D1, D0 will be converted to decimal floating point and the conversion result is stored in D3, D2.

X0			DEBCD	D0	D2
	Binary		D1	D0	23 bits for real number, 8 bits for exponent
Floating Point					1 bit for sign bit
Decimal		Exponent Real number			Real number Exponent
			D3	D2
					[D2] * 10	[D3]
Floating Point

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