TIME/LTIME

The time data type TIME is handled internally like a UDINT (32-bit). This leads to a resolution in milliseconds.

The time data type LTIME is internally handled like a ULINT (64-bit). You can use this data type as a time base for high-resolution timers with a resolution in nanoseconds.

Data type

Lower limit

Upper limit

Storage space

Resolution

TIME

0

4294967295
(49d17h2m47s295ms)

32-bit

Milliseconds

LTIME

0

213503d23h34m33s709ms551us615ns

64-bit

Nanoseconds

The time declaration can contain the time units that are valid for TIME or LTIME constants.

Sample:

VAR
    tTime  : TIME  := T#1d2h30m40s500ms
    tLTime : LTIME := LTIME#100d2h30m40s500ms600us700ns
END_VAR

See also: