B&B Electronics WOP-2121V-N4AE - Manual - Manual (Page 378)

12
PM Designer Operation Manual
12-6
CHAPTER 12 DATA COLLECTION AND HISTORIC DISPLAYS
Property Description
Display Type The display type for the value of the data item. The following table shows the available display
types for each data type.
Data Type Available Display Types
16-Bit Unsigned Integer 16-Bit Unsigned Decimal, 16-Bit Hexadecimal, 16-Bit Octal
32-Bit Unsigned Integer 32-Bit Unsigned Decimal, 32-Bit Hexadecimal, 32-Bit Octal
16-Bit Signed Integer 16-Bit Signed Decimal
32-Bit Signed Integer 32-Bit Signed Decimal
16-Bit BCD 16-Bit Unsigned Decimal
32-Bit BCD 32-Bit Unsigned Decimal
32-Bit Floating Point 32-Bit Floating Point
ASCII String ASCII String
Unicode String Unicode String
Total Digits Specifies the number of digits to be displayed for the value of the data item.
Fractional Digits Specifies how to display the fractional part for the value of the data item. When the Display
Type is 32-bit Floating Point, this property specifies the number of fractional digits to be
displayed. When the Display Type is not 32-bit Floating Point, this property specifies not only
the number of fractional digits to be displayed but also the number of least significant digits to
be displayed as the fractional part. With this feature, an integer can be shown as a fixed point
number.
Example:
Display Type Total
Digits
Fractional
Digits
Sampled
Value
Displayed
Value
32-bit Floating Point 4 2 12.34 12.34
32-bit Floating Point 4 2 123.4 23.40
16-bit Signed Decimal 5 2 12345 123.45
16-bit Signed Decimal 5 2 -5 -0.05
Scaling Check this option if you want the value of the data item to be displayed in a scaled manner.
The following is the scaling formula:
DisplayedValue = SampledValue * Gain + Offset
Note: The Gain and Offset are 32-bit floating point numbers. They have at most 6 significant
digits. The rounding and truncation errors may happen.
Gain Available when the Scaling option is checked. Specifies the Gain used in the scaling formula.
Offset Available when the Scaling option is checked. Specifies the Offset used in the scaling
formula.