8 Application Instructions API 100-149 Operands: S : Source value (binary floating point) D : ATAN value Explanations: 1. See the specifications of each model for their range of use. 2. Flag: M1020 (zero flag) 3. ATAN value=tan –1 . The figure below offers the relation between the entered tan value and the result. S: Entered data (tangent value) R: ATAN value (radian) S 4. If the result =0, M1020 = On. Program Example: When X0 = On, obtain the ATAN value of binary floating point (D1, D0) and store the binary floating point result in (D11, D10). X0 D1 D0 binary floating point D11 D10 ATAN value binary floating point Remarks: For floating point operations, see “5.3 Handling of Numeric Values”.
DVP-PLC Application Manual 8-55 API Mnemonic Operands Function 135 D ATAN P Arc Tangent Mnemonic Operands Function D ATAN P Arc Tangent Type OP Bit Devices Word Devices Program Steps X Y M S K H KnX KnY KnM KnS T C D E F DATAN, DATANP: 9 steps S * * * D * PULSE 16-bit 32-bit EH3 ES EX SS SA SX SC EH SV EH3 SV2 ES EX SS EH3 ES EX SS S A SX SC EH SV SA SX SC EH SV SV2 SV2 R S: En R: AT 2 0 - 2 DATAN D0 D10