Mitsubishi Electric MELSEC-Q/L - Page 280

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6 BASIC INSTRUCTIONS
6.3 Data Conversion Instructions
Operation error
• In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into SD0.
Program example
• The following program converts the 32-bit floating decimal point type real number at D20 and D21 to BIN 16-bit data, and
stores the result at D0.
• The following program converts the 32-bit floating decimal point type real number at D20 and D21 to BIN 32-bit data and
stores the result at D0 and D1.
Error
code
Error details Q00J/
Q00/Q01
QnH QnPH QnPRH QnU LCPU
4140 The specified device value is not within the following range:
0, 2
-126
 | Specified device value | < 2
128
The specified device value is -0, unnormalized number,
nonnumeric, and .

4100 The 32-bit floating point data specified by (S) when the INT
instruction is used is outside the -32768 to 32767 range.

The 32-bit floating point data specified by (S) when the DINT
instruction is used is outside the -2147483648 to 2147483647
range.

[Ladder Mode] [List Mode]
[Operation]
[Ladder Mode] [List Mode]
[Operation]
Step
Instruction
Device
Integer
conversion
BIN value
D0
25916
Integer
conversion
An operation error occurs
since "setting data < -32768."
32-bit floating-point
real number
D21
-33562.3211
D20
32-bit floating-point
real number
D21
25915.6796
D20
Step
Instruction
Device
Integer
conversion
Integer
conversion
An operation error occurs
since "setting data > 2147483647."
32-bit floating-point
real number
D21
2147483649.22
D20
32-bit floating-point
real number
D21
-574968.321
D20
BIN value
D1
-574968
D0