Aspen Touch Solutions ATM-123R Series Specifikace Strana 273

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User Variables 5-11
5-11
Dimensions Drop-down List
When a Real, Enumeration or Text data type is specified, the
Dimensions drop-down list is available on the User Variables
property view. Data dimensions available from the drop-down
list include:
Scalar
• Vector (array)
• Matrix
Cube (3 dimensions)
5.5.1 Real Data Type
Units Drop-down List
The Units drop-down list is available only when Real is selected
as the Data Type.
From this drop-down list you can select one of the existing
variable types built into HYSYS in order to determine units and
valid numeric range for the new variable. For example, selecting
Temperature results in a User Variable displaying units of
temperature that accepts input in Celsius, Kelvin, Rankin or
Fahrenheit. That same variable would also automatically
disallow out of range input such as a negative Kelvin value or a
Celsius value less than -273.15.
Figure 5.10
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