Freewheeling Tasks; Debugging An Iec Program; Figure 75: Freewheeling Task - WAGO 750-8207 Manual

240 Run-time System CODESYS 2.3
... 31. These tasks all receive the same computing time from the operating
system ("Completely Fair Scheduler" procedure).
8.4.2

Freewheeling Tasks

So-called freewheeling tasks are not processed in cycles. Their processing
depends solely on the current capacity of the system. The input field "Priority
(0 ... 31)" is provided for freewheeling tasks without a function. These tasks are
handled as tasks with priority 21 ... 31.

Figure 75: Freewheeling Task

PLC-PRG as Freewheeling Task without Task Configuration
If you do not perform any task configuration, the program PLC_PRG is carried
out with the lowest priority at an interval of 10 ms. The runtime of "freewheeling
tasks" is not monitored by a CODESYS watchdog.
8.4.3

Debugging an IEC Program

If the IEC program is debugged with breakpoints, the behavior on actuation of the
mode selector switch is defined as follows:
Provided that a task is not located on a breakpoint, RUN and STOP from the user
interface (IDE) and from the mode selector switch (BAS) always have an effect
on all tasks (case 1 and case 2).
Manual
Draft version 1.2.1 from 2017-09-13, valid from FW Version 02.06.20(09)
WAGO-I/O-SYSTEM 750
750-8207 PFC200 CS 2ETH RS 3G