Omron C200H - Page 221

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Limitations Can be performed with the CPU11-E only. For trigonometric functions, x, the

content of S, must be in BCD form and satisfy the condition 0000 ≤ x ≤ 0900

(0°≤Θ≤ 90°).

When the execution condition is OFF, VCAL(69) is not executed. When the

execution condition is ON, the operation of VCAL(69) depends on the control

word C. If C is #0000 or #0001, VCAL(69) computes sin(x) or cos(x)*. If C is

an address, VCAL(69) computes f(x) of the function entered in advance at

word C. The function is a series of line segments (which can approximate a

curve) determined by the operator.

* x is the content of S.

Flags ER: Indirectly addressed DM word is non-existent. (Content of *DM word

is not BCD, or the DM area boundary has been exceeded.)

For trigonometric functions, x > 0900. (x is the content of S.)

The linear approximation data is not readable.

EQ: The result is 0.

The following example demonstrates the use of the VCAL(69) sine function

to calculate the sine of 30°. The sine function is specified when C is #0000.

Input data, x Result data

S: DM 0000 D: DM 0100

010

–1

–2

–3

–4

0300 5000

VCAL(69)

#0000

DM 0000

DM 0100

00000

Enter input data not exceeding #0900

in BCD form.

Result

data

has

four

significant

digits,

fifth

and

higher

digits

are

ignored.

The

result

for

sin(90)

will

0.9999,

not

Address Instruction Operands

00000 LD 00000

00001 VCAL(69)

# 0000

DM 0000

DM 0100

The following example demonstrates the use of the VCAL(69) cosine func-

tion to calculate the cosine of 30°. The cosine function is specified when C is

#0001.

Input data, x Result data

S: DM 0010 D: DM 0110

010

–1

–2

–3

–4

0300 8660

VCAL(69)

#0001

DM 0010

DM 0110