Delta DVP-PLC, Applications Manual

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8 Application Instructions API 100-149
DVP-PLC Application Manual
8-45
API Mnemonic Operands Function
131 D COS P 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 *
DCOS, DCOSP: 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
D
: COS result
Explanations:
1. 0° ≤
S
< 360°. See the specifications of each model for their range of use.
2. Flags: M1018 (angle or radian); M1020 (zero flag)
3.
S
can be an angle or radian, decided by M1018.
4. When M1018 = Off, the program will be in radian mode and the RAD value = angle × π /180
5. When M1018 = On, the program will be in angle mode and the range of angle should be “0° ≤ angle < 360°”
6. If the result = On, M1020 = On.
7. The COS value obtained by
S
is calculated and stored in the register designated by
D
. The figure below offers the
relation between radian and the result.
S: Radian
R: Result (COS value)
S
-2
3
2
-2 2
3
2
2
2
-
1
-1
0
-
R
8. Switch between radian and angle by M1018: When M1018 = Off,
S
will be a RAD value; when M1018 = On,
S
will be an angle (0° ~ 360°).
Program Example 1:
When M1018 = Off, the program is in radian mode. When X0 = On, use the RAD value of binary floating point (D1, D0)
and obtain its COS value. The binary floating point result will be stored in (D11, D10).
M1002
RST M1018
X0
DCOS D0 D10
D1 D0
D11 D10
COS value
RAD value (angle x
/180)
binary floating point
binary floating point
Program Example 2:
When M1018 = On, the program is in angle mode. When X0 = On, use the angle of (D1, D0) to obtain COS value and