IDEC MICROSmart FC6A Series Ladder Programming Manual

21: T RIGONOMETRIC F UNCTION I NSTRUCTIONS
21-2 FC6A S ERIES MICROS MART L ADDER P ROGRAMMING M ANUAL FC9Y-B1726
DEG (Radian to Degree)
Valid Devices
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
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
below –3.402823 × 10
38
or over 3.402823 × 10
38
, causing an overflow, the destination device designated by D1 stores a value of minus or plus
infinity.
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 DEG 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
Example: DEG
S1·S1+1 rad × 180/π → D1·D1+1°
When input is on, the radian value assigned by source device S1 is converted into a degree value
and stored to the destination assigned by device D1.
DEG(F) S1
*****
D1
*****
Device Function I Q M R T C D P Constant Repeat
S1 (Source 1) Radian value to convert into degree — — — — — — 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 floating point data 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 radian value of data registers D10 and D11 assigned by
source device S1 is converted into a degree value and stored to data registers D20 and
D21 assigned by destination device D1.
I1
S1
D10
DEG(F) D1
D20
SOTU
4.712389 rad × 180/π → 270.0°
D1S1
4.712389
D10·D11
270.0
D20·D21

IDEC MICROSmart FC6A Series Specifications

General

Brand	IDEC
Model	MICROSmart FC6A Series
Category	Computer Hardware
Language	English