Tan (Tangent) - IDEC MICROSmart FC6A Series Ladder Programming Manual

TAN (Tangent)

TAN(F)
*****
Valid Devices
Device
S1 (Source 1)
D1 (Destination 1)
For valid device address ranges, see "Device Addresses" on page 2-1.
When the conversion result is not within the range between –3.402823 × 10
38
3.402823 × 10 , special internal relay M8003 (carry or borrow) is turned on except when the conversion result is 0. When the conversion result is
38
below –3.402823 × 10 or over 3.402823 × 10
infinity.
M8003
Execution Result
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 FC6A Series MICROSmart. For details about the user program execution errors, see "User Program
Execution Errors" on page 3-10.
Since the TAN instruction is executed in each scan while input is on, a pulse input from a SOTU or SOTD instruction should be used.
Valid Data Types
W (word) —
I (integer) —
D (double word) —
L (long) —
F (float) X
Example: TAN
TAN(F)
SOTU
I1
tan S1·S1+1 → D1·D1+1
S1 D1
When input is on, the tangent of the radian value assigned by source device S1 is stored to the
*****
destination assigned by device D1.
Function
Radian value to convert into tangent value
Destination to store conversion results
38
, causing an overflow, the destination device designated by D1 stores a value of minus or plus
Overflow
1
×
38
–3.402823 10
Since floating point data is used, the source and destination devices use two consecutive data registers.
S1 D1
D10 D20
FC6A S MICROS
ERIES MART
21: T
I Q
— —
— —
38
and –1.175495 × 10
Not Zero
0 1 0 1
×
–38
–1.175495 10 0
When input I1 is turned on, the tangent of the radian value of data registers D10 and
D11 assigned by source device S1 is stored to data registers D20 and D21 assigned by
destination device D1.
π
3.926991 rad = 5 /4 rad
π
/4 → 1.0
tan 5
S1
D10·D11 3.926991
L P M
ADDER ROGRAMMING
F
RIGONOMETRIC UNCTION
M R T C D P
— — — — X —
— — — — X —
–38
or between 1.175495 × 10
0
×
–38
1.175495 10 3.402823
D1
D20·D21
FC9Y-B1726
ANUAL
I
NSTRUCTIONS
Constant Repeat
X —
— —
–38
and
Overflow
1
×
38
10
1.0
21-5