External representations of data in the various programmable controller programming languages shall consist of numeric literals, character strings, and time literals. (Note: see the standard for details)
2.2.1 Numeric literals
Numeric literal features and examples are shown in table 4.
NOTE - The "newline" character provides an implementation-independent means of defining the end of a line of data for both physical and file I/O; for printing, the effect is that of ending a line of data and resuming printing at the beginning of the next line.
2.2.3 Time literals
The need to provide external representations for two distinct types of time-related data is recognized: duration data for measuring or controlling the elapsed time of a control event, and time of day data (which may also include date information) for synchronizing the beginning or end of a control event to an absolute time reference.
2.2.3.1 Duration
Table 7 - Duration literal features
No.
Feature description
Examples
1a
Duration literals without underlines:
short prefix
