7 APPLICATION INSTRUCTION
7.7 Real Number Instruction
451
7
Converting single-precision real number angle to radian
RAD(P)/DRAD(P)
These instructions convert a unit of angle from degrees (DEG.) specified by (s) into radians, and store the converted angle in
the device specified by (d).
The RAD(P) instructions can also be used as DRAD(P).
■Descriptions, ranges, and data types
■Applicable devices
• These instructions convert a unit of angle from degrees (DEG.) specified by (s) into radians, and store the converted angle
in the device specified by (d).
• The conversion from degrees into radians is executed as follows:
• The table below shows the related devices.
Ladder diagram Structured text
ENO:=RAD(EN,s,d);
ENO:=RADP(EN,s,d);
Operand Description Range Data type Data type (label)
(s) A value in degrees to be converted into a value in radians or
the start number storing the value in degrees
Single-precision real number Single-precision real number
(d) Head device number storing a value in radians acquired by
conversion
Single-precision real number Single-precision real number
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB
U\G T, ST,
C, LC
T, ST, C, D,
W, SD, SW, R
U\G Z LC LZ K, H E $
(s)
(d)
Device Name Description
Condition Operation
SM700 Carry The absolute value of the operation result 2
128
The value of (d) is the maximum value (2
128
) of 32-bit real
numbers and the carry flag SM700 turns on.
SM8020 Zero The operation result is true "0".
(The mantissa part is "0").
The zero flag SM8020 turns on.
SM8021 Borrow The absolute value of the operation result < 2
-126
The value of (d) is the minimum value (2
-126
) of 32-bit real
numbers and the borrow flag SM8021 turns on.
SM8022 Carry The absolute value of the operation result
2
128
The value of (d) is the maximum value (2
128
) of 32-bit real
numbers and the carry flag SM8022 turns on.
Error code
(SD0/SD8067)
Description
3402 The specified device value is -0, denormalized number, NaN (not a number), or .
(s)+1 (s) (d)+1 (d)
( ) ( ) rad
Single-precision real number Single-precision real number