Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Fld※, Fld ＝, Fld ＞, Fld ＜

3. Instruction Set

API

275~

280

Mnemonic	Operands	Function
FLD※		Floating Point Contact Type
		Comparison LD※

Controllers

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	FLD※: 9 steps
S1						*	*	*
S2						*	*	*
						PULSE			16-bit		32-bit

ES2/EX2	SS2	SA2	SX2 ES2/EX2	SS2	SA2	SX2	ES2/EX2	SS2	SA2	SX2
		SE			SE				SE

Operands:

S1: Source device 1 S2: Source device 2

Explanations:

1.This instruction compares the content in S1 and S2. Take “FLD=” for example, if the result is “=”, the continuity of the instruction is enabled. If the result is “≠”, the continuity of the instruction is disabled.

2.The user can specify the floating point value directly into operands S1 and S2 (e.g. F1.2) or store the floating point value in D registers for further operation.

3.FLD※ instruction is used for direct connection with left hand bus bar.

API No.	32 -bit instruction	Continuity condition	Discontinuity condition
275	FLD＝	S1＝S2	S1≠S2
276	FLD＞	S1＞S2	S1≦S2
277	FLD＜	S1＜S2	S1≧S2
278	FLD＜＞	S1≠S2	S1＝S2
279	FLD＜＝	S1≦S2	S1＞S2
280	FLD＞＝	S1≧S2	S1＜S2

Program Example:

When the content in D200(D201) ≤ F1.2 and X1 is ON, Y21 = ON and latched.

X1

FLD<= D200 F1.2

SET Y21

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