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Date and Time
The example shows how to use the date and time functions of the SysTime and Util libraries.
Product description
The project contains examples on the following topics:
- Reading timer tick values since system startup
- Read UTC time
- Convert UTC time to local time
- Local time and time zone operations
More information
In the visualization placeholders e.g. "%t[ddd MMM dd.MM.yyyy HH:mm:ss]" are used to display the current system time.
The displayed format can be modified with placeholders shown below.
See also the CoDeSys Online Help under
https://content.helpme-codesys.com/en/CODESYS%20Visualization/_visu_placeholder_with_formatting_sequence_in_a_string.html
| Placeholder | Date and time formats |
|---|---|
| ddd | Name of weekday, abbreviated, e.g. "Wed" |
| dddd | Name of weekday, e.g. "Wednesday" |
| ddddd | Weekday as decimal number (0-6, Sunday is 0) |
| MMM | Name of month, abbreviated, e.g. "Feb" |
| MMMM | Name of month, e.g. "February" |
| d | Day of month as number (1-31), e.g. "8" |
| dd | Day of month as number (01-31), e.g. "08" |
| M | Month as number (1-12), e.g. "4" |
| MM | Month as number (01-12), e.g. "04" |
| jjj | Day of the year as number (001-366), e.g. "067" |
| y | Year without specification of century (0-99), e.g."9" |
| yy | Year without specification of century (00-99), e.g. "09" |
| yyy | Year with specification of century, e.g. "2009" |
| HH | Hour, 24-hours format (01-24), e.g. "16" |
| hh | Hour, 12-hours format (01-12), e.g. "4" for 16 o'clock |
| m | Minutes (0-59), without preceded zero, e.g. "6" |
| mm | Minutes (00-59), with preceded zero, e.g. "06" |
| s | Seconds (0-59), without preceded zero, e.g. "6" |
| ss | Seconds (00-59), with preceded zero, e.g. "06" |
| ms | Milliseconds (0-999), without preceded zero, e.g. "322" |
| t | "A/P" identifier for 12-hours format: "A" for hours < 12, "P" for hours > 12; e.g. "A" for 9 o'clock in the morning |
| tt | "AM/PM" identifier for 12-hours format: "AM" for hours < 12, "PM" for hours > 12, e.g. "AM" for 9 o'clock in the morning |
| ' ' | Text strings containing one of the placeholders listed above must be put in single quotation marks; all other text within the format string can be used without quotation marks. e.g. 'update' because of "d" and "t" |
System requirements and restrictions
| System requirements and restrictions | Info |
|---|---|
| Programming System | CODESYS Development System Version 3.5.14.0 or higher |
| Runtime System | CODESYS Control Version 3.5.14.0 |
| Required Accessories | - |