Delta Electronics Programmable Logic Controller DVP-PLC - Manual (Page 455)

8 Application Instructions API 100-149
DVP-PLC Application Manual 8-53
API Mnemonic Operands Function
137 D COSH P Hyperbolic Cosine
Controllers
ES/EX/SS SA/SX/SC EH/SV
Bit Devices Word devices Program Steps Type
OP X Y M S K H KnX KnY KnM KnS T C D E F
S * * *
D *
DCOSH, DCOSHP: 9 steps
PULSE 16-bit 32-bit
ES EX SS SA SX SC EH SV ES EX SS SA SX SC EH SV ES EX SS SA SX SC EH SV
Operands:
S : Source value (binary floating point) D: COSH value
Explanations:
1. See the specifications of each model for their range of use.
2. Flags: M1020 (zero flag); M1021 (borrow flag); M1022 (carry flag)
3. COSH value=(e s +e -s )/2. The result is stored in D.
Program Example:
1. When X0 = On, obtain the COSH value of binary floating point (D1, D0) and store the binary floating point result in
(D11, D10).
DCOSH
X0
D0 D10
D1 D0
D11 D10 COSH value
binary floating point
binary floating point
5. If the absolute value of the result ＞ maximum floating point available, the carry flag M1022 = On.
6. If the absolute value of the result ＜ minimum floating point available, the borrow flag M1021 = On.
7. If the result = 0, the zero flag M1020 = On.
Remarks:
For floating point operations, see “5.3 Handling of Numeric Values”.