Toshiba PROSEC T1 T1S, 6F3B0250 user manual = fx

6F3B0250

7. Instructions

Parameter table

4 registers for x parameters and subsequent 4 registers for corresponding f(x) parameters

D0600

D0601

D0602

D0603

D0604

D0605

D0606

D0607

-2000

-100

100

2000

-1800

-300

300

1800

		y		(x4,y4)
	y = f(x)
x1		1800
x2
x3		300	(x3,y3)
x4	-2000	-100
			100	2000	x
y1		(x2,y2)
y2			-300
y3
y4	(x1,y1)		-1800

The FG instruction interpolators f(x) value for x based on the n parameters of (xi,yi).

For example, if XW04 is 1500 (x = 1500), the result 1405 (f(x) = 1405) is stored in D0100.

y

1800

1405

300

-2000 -100

100 2000 x

-300

1500

-1800

Note

·The order of the x parameters should be x1 £ x2 £ ... £ xi £ ... £ xn. In the above example, the data of D0600 to D0603 should be D0600 £ D0601 £ D0602 £ D0603.

·If x is smaller than x1, y1 is given as f(x). In this example, D0604 data (-1800) is stored in D0100 if XW04 is smaller than D0600 (-2000).

·If x is greater than xn, yn is given as f(x). In this example, D0607 data (1800) is stored in D0100 if XW04 is greater than D0603 (2000).

·The valid data range is -32768 to 32767.

248 T1/T1S User’s Manual

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