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3. Instruction Set

API Mnemonic Operands Function

ES2/EX2 SS2 SA2

Bit Devices Word devices Program Steps Type

X Y M S K H KnX KnY KnM KnS T C D E F

DATAN, DATANP: 9

PULSE 16-bit 32-bit

SX2 ES2/EX2 SS2

SX2 ES2/EX2 SS2

S: Source device (binary floating value) D: Operation result

Explanations:

1. ATAN instruction performs arc tangent operation on S and stores the result in D

2. ATAN value=TAN

3. See the figure below for the relation between the input and the result:

S: Input (TAN value)

R: Result (ATAN value)

4. If operation result in D is 0, Zero flag M1020 = ON.

Program Example:

When X0 = ON, DATAN instruction performs arc tangent operation on the binary floating value in

(D1, D0) and stores the ATAN value in (D11, D10) in binary floating format.

Binary floating point

binary floating point

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Delta DVP-ES2 Manuale Utente Pagina 441