LabVIEW 2018 Help
View Product Info
DOWNLOAD (Windows Only)
Requires: Base Development System (Windows)
Click the Configure Fixed Point button on the Variable page of the Shared Variable Properties dialog box or on the Configuration page of the Variable Refnum Properties dialog box to display this dialog box.
Use this dialog box to configure the encoding, range, and overflow status of a fixed-point shared variable.
This dialog box includes the following components:
- Fixed-Point Configuration—Displays the options available for configuration of a fixed-point shared variable.
- Encoding—Specifies the binary encoding of a fixed-point number when you want the number to conform to a certain bit size.
- Signed—Specifies that the fixed-point data is signed. The sign bit is always the first bit in the bit string that represents the data.
- Unsigned—Specifies that the fixed-point data is unsigned.
- Word length—Specifies the total number of bits in the bit string that LabVIEW uses to represent all possible values of the fixed-point data. LabVIEW accepts a maximum word length of 64 bits. Certain targets might limit data to smaller word lengths. If you open a VI on a target and the VI contains fixed-point data with larger word lengths than the target can accept, the VI contains broken wires. Refer to the documentation for a target to determine the maximum word length the target accepts.
- Integer Word Length—Specifies the number of bits in the bit string that LabVIEW uses to represent the integer portion of the value of the fixed-point data. The integer word length can be larger than the word length, and can be positive or negative.
- Range—Displays the range and delta for a fixed-point number. Use the following components to specify the range of possible values to which you want the number to conform:
- Minimum—Displays the minimum value for the fixed-point data range.
- Maximum—Displays the maximum value for the fixed-point data range.
- Delta—Displays the increment between numbers within the desired range.
- Include Overflow Status—Specifies whether to include the overflow status of the fixed-point data. Overflow occurs when the result of an operation is outside the range of values that the output type can represent. LabVIEW allocates additional storage space to track whether the fixed-point data is the result of an operation that overflowed.