Codesys V3 Priorities; Table 178: Codesys V3 Priorities - WAGO 750-8215 Manual

224 e!RUNTIME Runtime Environment
8.2

CODESYS V3 Priorities

A list of priorities implemented for the controller is provided below as
supplementary information to the CODESYS 3 documentation.

Table 178: CODESYS V3 Priorities

Scheduler
Preemptive
scheduling
-
Real-time
range
Fair
scheduling
-
None real-
time range
Manual
Version 1.2.0, valid from FW Version 03.02.02(14)
Linux
Task
Priority
Local bus or
-95 ... -86
fieldbus - HIGH
Mode selector
-85
switch monitoring
CODESYS
-83
watchdog
Cyclic and event-
-55 ... -53 1 ... 3
controlled IEC task
Local bus or
-52 ... -43
fieldbus - MID
Cyclic and event-
-42 ... -32 4 ... 14
controlled IEC task
Local bus or
-13 ... -4
fieldbus – LOW
CODESYS
communication
Back-
ground
Cyclic, event-
(20)
controlled and
freewheeling IEC
task
WAGO-I/O-SYSTEM 750
750-8215 PFC200; G2; 4ETH CAN USB
®
IEC
Remark
Priority
Local bus (-88)
Task registers changes
to the mode selector
switch and changes
the state of the PLC
application. (start, stop,
reset warm/cold)
Execution of the
watchdog functions
For real-time tasks
which must not be
influenced in execution
by external interfaces
(e.g., fieldbus).
CAN (-52 ... -51)
PROFIBUS (-49
... -45)
Modbus
(-43)
For real-time tasks
which must not
influence fieldbus
communication during
execution.
Communication with
the CODESYS
development
environment
Incl. standard priority of
15
the visualization task
®
slave/master