FT1A S
MART
A
XIS
U
SER
’
S
M
ANUAL
FT9Y-B1382
21-1
21: T
RIGONOMETRIC
F
UNCTION
I
NSTRUCTIONS
Introduction
Trigonometric function instructions are used for conversion between radian and degree values, conversion from radian value to
sine, cosine, and tangent, and also calculation of arc sine, arc cosine, and arc tangent values.
RAD (Degree to Radian)
Applicable CPU Modules
Valid Devices
For the valid device address range, see pages 6-1 and 6-2
(Basic Vol.).
When the conversion result is not within the range between –3.402823
10
38
and –1.175495
10
–38
or between 1.175495
10
–38
and 3.402823
10
38
, special internal relay M8003 (carry or borrow) is turned on except when the conversion result is 0. When the conversion result is between –
1.175495
10
–38
and 1.175495
10
–38
, the destination device designated by D1 stores 0.
When the data designated by S1 does not comply with the normal floating-point format, a user program execution error will result, turning on
special internal relay M8004 and ERR LED on the CPU module. For details about the user program execution errors, see Chapter 4 “User Program
Execution Errors” on page 4-21.
Since the RAD instruction is executed in each scan while input is on, a pulse input from a SOTU or SOTD instruction should be used as required.
Valid Data Types
Example: RAD
S1·S1+1°
/180
D1·D1+1 rad
When input is on, the degree value designated by source device S1 is converted into a radian
value and stored to the destination designated by device D1.
RAD(F)
S1
*****
D1
*****
FT1A-12
FT1A-24
FT1A-40
FT1A-48
FT1A-Touch
X
X
X
X
X
Device
Function
I
Q
M
R
T
C
D
Constant
Repeat
S1 (Source 1)
Degree value to convert into radian
—
—
—
—
—
—
X
X
—
D1 (Destination 1)
Destination to store conversion results
—
—
—
—
—
—
X
—
—
0
–1.175495
10
–38
M8003
1
1
1.175495
10
–38
0
–3.402823
10
38
0
Execution Result
1
Overflow
0
1
3.402823
10
38
Overflow
Not Zero
W (word)
—
Since the floating point data type is used, the source and destination devices use two consecutive data registers.
I (integer)
—
D (double word)
—
L (long)
—
F (float)
X
When input I1 is turned on, the degree value of data registers D10 and D11 designated
by source device S1 is converted into a radian value and stored to data registers D20
and D21 designated by destination device D1.
270°
/180
4.712389 rad
I1
S1
D10
RAD(F)
D1
D20
SOTU
D1
S1
270.0
D10·D11
4.712389
D20·D21
Содержание microsmart pentra
Страница 1: ...FT1A SERIES FC9Y B1382 Ladder Programming Manual ...
Страница 6: ...Preface 5 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 104: ...7 DATA COMPARISON INSTRUCTIONS 7 10 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 122: ...8 BINARY ARITHMETIC INSTRUCTIONS 8 18 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 138: ...10 SHIFT ROTATE INSTRUCTIONS 10 12 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 162: ...11 DATA CONVERSION INSTRUCTIONS 11 24 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 188: ...12 CALENDAR COMPARISON INSTRUCTIONS 12 26 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 198: ...15 REFRESH INSTRUCTIONS 15 4 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 202: ...16 INTERRUPT CONTROL INSTRUCTIONS 16 4 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...
Страница 266: ...20 DUAL TEACHING TIMER INSTRUCTIONS 20 4 FC5A MICROSMART USER S MANUAL FC9Y B1273 ...
Страница 318: ...25 USER COMMUNICATION INSTRUCTIONS 25 22 FT1A SMARTAXIS USER S MANUAL FT9Y B1382 ...