Data Types
The following data types are supported by Studio 5000® software. A data type is a definition of the size and layout of the memory allocated for the created tag. Data types define how many bits, bytes, or words of data a tag uses.
Data Types
|
Data Type |
Abbreviation |
Memory Bits |
Range |
|---|---|---|---|
|
Boolean |
BOOL |
1 |
0–1 |
|
Short Integer |
SINT |
8 |
−128 to 127 |
|
Integer |
INT |
16 |
−32,768 to 32,767 |
|
Double Integer |
DINT |
32 |
−2,147,483,648 to 2,147,483,647 |
|
Real Number |
REAL |
32 |
±3.402823E38 to ±1.1754944E-38 |
TeSys™ island supports unsigned data types. However, Studio 5000 software supports only signed data types. These data types use a bit to indicate that the software only handles signed integers. For this reason, the maximum positive value that can be displayed for 32-bit unsigned integers is 2,147,483,647. To enforce this, logic exists within AOIs (add-on instructions) to max out UDINT registers if the sign bit is used. For these TeSys island registers, a flag exists as an exposed parameter to indicate overflow. These flags are data type BOOL with the naming convention {TagName}_O.
Overflow Example
|
AvgIRMS |
DINT |
|
AvgIRMS_O |
DINT |