Functions

The scope of functions provided by the Freelance

system corresponds to the basic supply defined in

IEC 611 1- , in addition to numerous other high

performance, industry-proven functions and function

blocks. They are accommodated in a function block

library and can be supplemented by user-specific

function blocks. While designing the station and

during configuration, the processing capacity and

speed of the process station can be easily adapted

to the demands of the automation task. Program

execution in the process station is based on a task

oriented, real-time multitasking operating system,

leading to a flexible strategy for processing programs.

Different modes are available for task execution:

• Cyclical processing with cycle times from 5 ms upwards

• Fastest-possible processing (PLC mode)

Along with the user tasks, system tasks – in which

functions can also be processed – are automatically

made available. These tasks are executed once in

case of the following events:

– RUN

– STOP

– COLD START

– WARM START (voltage restored)

– REDUNDANCY TOGGLE- ERROR

Up to eight cyclic user tasks and one PLC mode task

can be configured in a process station.