Panasonic FP Series Programming Manual page 424

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The function calculates the arcsine of a BCD value that is entered at input s as an ARRAY with

three elements. The result is returned as BCD angular data in the range of 0° to 360° (16#0 to

16#360) at output d.

BCD values for input s lie in the area from -1.0000 to 1.0000. They are entered as follows:

This instruction also exists as a P instruction (for FP2/2SH, FP3/5, FP10/10SH PLC types), which

is only executed at the rising edge of the EN trigger. Select [Insert P instruction] from the

"Instructions" pane if you require a P instruction. To facilitate reuse, the instruction then appears

under "Recently used" in the pop-up menu. Press <Ctrl>+<Shift>+<v> within the programming

area to open the list of recently used elements.

Availability of F303_BASIN (see page 1324)

ARRAY [0..2] of

In this example, the same POU header is used for all programming languages. For an example

using IL (instruction list), please refer to the online help.

All input and output variables used for programming this function have been declared in the POU

BCD type Arcsine operation

preceding sign (0 when input is +, 1 when input is -)

whole number before the decimal point (0 or 1)

numbers after the decimal point with 4 significant figures as a BCD

value (16#0000 to 16#9999).

area where angle data is stored

result stored in 3 words

for an instant

for an instant

 the input value for s is not a BCD value

or is not between -1.0000 and 1.0000

 the result is 0.

 the result causes an overflow.

Arithmetic instructions

dec. or hex.