Rockwell Automation 1756-HIST2G Historian ME 2.1 - Manual (Page 221)

A • F ACTORY T ALK H ISTORIAN ME R ULE E DITOR
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unit strings are case-preserving and case-insensitive. The system trims leading
and trailing blank spaces during input.
A single quote (‘) in a string must be preceded by a double quote (“). Similarly, a
double quote in a string must be preceded by a single quote. Long strings can be
used for more readable engineering units.

Display Digits
Controls the format of numeric values on screens and in reports. A zero or
positive number indicates the number of digits to display to the right of the
decimal point. A negative number indicates the number of significant digits to
display. In this case, the absolute value of Display digits is the number of
significant digits.
The following table shows how a value of 23.45 would appear on the screen for
different values of Display digits:
5. Specify the following attributes for tags you want archived under the Archive tab.
Display Digits
Value Displayed Value
3 23.450
2 23.45
1 23.5
0 23.
-1 2E+001