FT1A S
MART
A
XIS
U
SER
’
S
M
ANUAL
FT9Y-B1382
21-7
21: T
RIGONOMETRIC
F
UNCTION
I
NSTRUCTIONS
ACOS (Arc Cosine)
Applicable CPU Modules
Valid Devices
For the valid device address range, see pages 6-1 and 6-2
(Basic Vol.).
When the data designated by source device S1 is not within the range between –1.0 and 1.0 or 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 ACOS 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: ACOS
acos S1·S1+1
D1·D1+1 rad
When input is on, the arc cosine of the value designated by source device S1 is stored in radians
to the destination designated by device D1.
The S1·S1+1 value must be within the following range:
-1.0
S1·S1+1
1.0
If the S1·S1+1 value is not within this range, 0 is stored to D1·D1+1.
ACOS(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)
Arc cosine value to convert into radian
—
—
—
—
—
—
X
X
—
D1 (Destination 1)
Destination to store conversion results
—
—
—
—
—
—
X
—
—
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 arc cosine of the value of data registers D10 and D11
designated by source device S1 is stored to data registers D20 and D21 designated by
destination device D1.
acos –0.7071068
2.356195 rad
2.356195 rad = 3 /4 rad
I1
S1
D10
ACOS(F)
D1
D20
SOTU
D1
S1
–0.7071068
D10·D11
2.356195
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 ...