WAGO I/O System 750
Run-time System CODESYS V3 137
750-8210/040-000 PFC200; G2; 4ETH; XTR
Manual
Version 1.7.0, valid from FW Version 04.01.10(23)
9.2
CODESYS V3 Priorities
A list of priorities implemented for the controller is provided below as
supplementary information to the CODESYS V3 documentation.
Table 49: CODESYS V3 Priorities
Scheduler
Task
Linux
®
Priority
IEC
Priority
Remark
Preemptive
scheduling
-
Real-time
range
Local bus or
fieldbus - HIGH
-
95 … -86
Local bus (-88)
Mode selector
switch monitoring
-85
Task registers changes
to the mode selector
switch and changes
the state of the PLC
application. (start, stop,
reset warm/cold)
CODESYS
watchdog
-83
Execution of the
watchdog functions
Cyclic and event-
controlled IEC task
-
55 … -53 1 … 3
For real-time tasks
which must not be
influenced in execution
by external interfaces
(e.g., fieldbus).
Local bus or
fieldbus - MID
-
52 … -43
CAN (-
52 … -51)
PROFIBUS (-49
… -45)
Modbus
®
slave/master
(-43)
Cyclic and event-
controlled IEC task
-
42 … -32 4 … 14
For real-time tasks
which must not
influence fieldbus
communication during
execution.
Local bus or
fieldbus
– LOW
-
13 … -4
Fair
scheduling
-
None real-
time range
CODESYS
communication
Back-
ground
(20)
Communication with
the CODESYS
development
environment
Cyclic, event-
controlled and
freewheeling IEC
task
15
Incl. standard priority of
the visualization task
