Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Sftr

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

API Mnemonic Operands Function Controllers

35	SFTL			P		Bit Shift Left			SA2
									ES2/EX2 SS2 SE	SX2
Type	Bit Devices					Word devices			Program Steps
OP	X	Y	M	S	K	H KnX KnY KnM KnS T	C D	E	F SFTL, SFTLP: 9 steps
S	*	*	*	*
D		*	*	*
n1					*	*
n2					*	*

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: Start No. of source device D: Start No. of destination device

n1: Length of data to be

shifted n2: Number of bits to be shifted as a group

Explanations:

1.This instruction performs a left shift from source device of n2 bits starting from S to destination device of n1 bits starting from D

2.This instruction is generally used in pulse execution mode (SFTLP).

3.Valid range of operand n1, n2 : 1≤ n2 ≤ n1 ≤1024

Program Example:

1.When X0 is rising edge triggered, SFTL instruction shifts X0~X4 into 16-bit data M0~M15 and M0~M15 also shift to the left with a group of 4 bits.

2.The figure below illustrates the left shift of the bits in one scan

nM15~M12 → Carry

o M11~M8		→	M15~M12
p M7~M4		→	M11~M8
q M3~M0		→	M7~M4
r X3~X0		→	M3~M0 completed
	X0			SFTR X0	M0	K16	K4

	4 bits in a group shift to the left
							X3	X2	X1	X0
Carry M15 M14 M13 M12 M11 M10 M9											5
		M8	M7	M6	M5	M4	M3	M2	M1
										M0
1	2		3				4

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