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7-276
RAD(P)
Operation Error
(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and
an error code is stored into SD0.
• The contents of the designated device or the result of the addition are not "0", or not within
the following range(For the Universal model QCPU only): (Error code: 4140)
0, 2
-126
| Contents of designated device | < 2
128
• The value of the specified device is 0.
*3
(For the Basic model QCPU, High Performance model QCPU, Process CPU, Redundant
CPU) (Error code: 4100)
*3: There are CPU modules that will not result in an operation error if 0 is specified. For details, refer to 3.2.4.
• The result exceeds the following range (Operation results in an overflow)
(For the Universal model QCPU only)
2
128
| Operation result | (Error code: 4141)
• The value of the specified device is 0, unnormalized number, nonnumeric, and ± .
(For the Universal model QCPU only) (Error code: 4140)
Program Example
(1) The following program converts the angle set by the 4 BCD digits at X20 to X2F to radians,
and stores results as 32-bit floating decimal point type real number at D20 and D21.
[Ladder Mode]
[List Mode]
[Operations involved when X20 to X2F designate a value of 120]
Inputs an angle to be converted
into a radian value ( )
Converts the input a 32-bit
floating-point real number ( )
Converts the converted angle into
a radian value ( )
1
2
3
Step Instruction Device
X2F
BCD value
0
D0
120
X20
Conversion
to BIN
BIN
b15
b0
BIN value
120
Conversion to
floating-point
FLT
Conversion
to radian
D11 D10
RAD
D21
D20
120 2
.
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