Tag Type | .Net Type | Value Range |
Digital | System.Int32 | 0 through 1 |
Integer | System.Int32 | 2,147,483,648 through 2,147,483,647 |
Long | System.Int64 | 2,147,483,648 through 2,147,483,647 |
Double | System.Double | -1.79769313486231570E+308 through -4.94065645841246544E-324 for negative values; 4.94065645841246544E-324 through 1.79769313486231570E+308 for positive values |
Decimal | System.Decimal | 0 through +/-79,228,162,514,264,337,593,543,950,335 with no decimal point; 0 through +/-7.9228162514264337593543950335 with 28 places to the right of the decimal; smallest nonzero number is +/-0.000 |
Text | System.String | 0 to approximately 2 billion Unicode characters |
Timer | System.Int32 | Same range of the Integer, but with Built-in Parameters to create timers |
DateTime | System.DateTimeOffset | from 12:00:00 midnight, January 1, 0001 to 11:59:59 P.M., December 31, 9999 |
TimeSpan | TimeSpan | Data Interval, in Days, Hours, Minutes, Seconds and Milliseconds, where each of those properties can hold a Double value |
Guid | Guid | Standard GUID unique identifier |
DataTable | System.Data.DataTable | Holds a in-memory DataTable |
Image | System.Byte[] | Can hold an Image file contents or any binary contents. Maximum size of the contents is the long value |
Caution: The Decimal type was created in .NET to allow calculation with more precision than the double, 24 four digits against 14, what is necessary when dealing with high numbers and no rounding allowed, such as Money calculation and some very large and precise engineering metrics, however the math operations on a Decimal can be 40 times slower then the Double. So, use the Decimal type only in the context that the Double precision is not enough.