Mitsubishi Electric M800VW Series Programming Manual page 402

M800V/M80V Series PLC Programming Manual (1/2)
8 Function Instructions
8.11 Special Function Instructions
 Operation errors
 In the following cases, an arithmetic error occurs, the error flag (SM0) turns ON, and an error code is stored at SD0.
- The designated device value is not within the following range. (Error code: 35)
-1022
0, 2 ≤ | Designated device value | < 2
- The designated device value is "-0", unnormalized number, nonnumeric, or ± ∞ . (Error code: 35)
- The operation result exceeds the following range. (When an overflow occurs) (Error code: 36)
| Operation result | < 2
 Program example
 The following program converts the angle set as BCD 4-digit from X20 to X2F to radians, and stores the result at D20 to
D23 as a 64-bit floating-point real number.
SM400
0
9
X2F
0
D13
64-bit floating-point real
number
1024
1024
[Ladder mode]
Inputs an angle to be converted into a
BIN K4X20 D0
radian value (1)
Converts the input angle into a 64-bit
FLTD D0 D10
floating-point real number (2)
RADD D10 D20
Converts the converted angle into a
radian value (3)
END
[Operations when X20 to X2F designate a value of 120]
(1) Conversion
X20
to BIN
1 2 0
BCD value
BIN
(3) Conversion to
D12 D11 D10
radian value
120
RADD
D0
b15 b0
120
BIN value
(2) Conversion to floating-point
real number
FLTD
D3 D2 D1 D1
2.094395
64-bit floating-point real
number
381
[List mode]
Steps Inst. Device
0 LD SM400
1 BIN K4X20
D0
3 FLTD D0
D10
6 RADD D10
D20
9 END
IB-1501667-B