2-263
2 Instruction Descriptions
NJ-series Instructions Reference Manual (W502)
Data Type Conversion Instructions
2
RealToFormatString
The following table shows how values are rounded.
• Exponent, Sign, MinLen, and DecPlace can be omitted. The defaults are applied for any omitted input
variables.
• To convert a LREAL variable to a text string, use the LrealToFormatString instruction (page 2-264).
• To convert a text string to a real number, use a STRING_TO_** (Text String-to-Real Number Conver-
sion Group) instruction (page 2-274).
An error occurs in the following cases. ENO will be FALSE, and Out will not change.
• The value of DecPlace is outside of the valid range.
• The value of DecPlace is greater than the value of MinLen.
• The number of bytes in the conversion result exceeds the size of the output parameter that is con-
nected to Out.
Value of
fractional
part
Treatment Examples
Less than
0.5
The fractional part is truncated. 1.49 → 1
0.5 If the ones digit is an even number, the fractional part
is truncated. If it is an odd number, the value is
rounded up.
1.50 → 2
2.50 → 2
Greater
than 0.5
The fractional part is rounded up. 1.51 → 2
Additional Information
Precautions for Correct Use
To Next Page
Loading...
Need help?
General
