Basic Characteristics RAPID

clock Time measurement
Description
Example
Limitations
Characteristics
Clock is used for time measurement. A clock functions like a stopwatch used for timing.
Data of the type clock stores a time measurement in seconds and has a resolution of
0.01 seconds.
VAR clock clock1;
ClkReset clock1;
The clock, clock1, is declared and reset. Before using ClkReset, ClkStart, ClkStop and
ClkRead, you must declare a variable of data type clock in your program.
The maximum time that can be stored in a clock variable is approximately 49 days
(4,294,967 seconds). The instructions ClkStart, ClkStop and ClkRead report clock
overflows in the very unlikely event that one occurs.
A clock must be declared as a VAR variable type, not as a persistent variable type.
Clock is a non-value data type and cannot be used in value-oriented operations.
Related Information
Described in:
Summary of Time and Date Instructions RAPID Summary - System & Time
Non-value data type characteristics Basic Characteristics - Data Types
RAPID Reference Manual 7-clock-1