WAGO -I/O-SYSTEM 750 Manual page 140

140 Programming the PFC Using WAGO-I/O-PRO
Background task (IEC-Task priorities 11-31 that can be set in CODESYS)
All internal tasks have a priority higher than that for the IEC background tasks.
These tasks are therefore very well-suited for performing time-intensive and non-
critical time tasks, such as calling up functions in the SysLibFile.lib.
Maximum number of IEC tasks!
Note that the fieldbus controller supports a total of 30 tasks (task ID 0 ... 29), the
two tasks (task ID 0 ... 1) are used by the runtime system in the Firmware. It will
thus remain 28 tasks (task ID 2 ... 29) for your user program. The task ID of
exceeding tasks than has task ID of an invalid handle (0xFFFFFFFF).
Additional Information
For a detailed description of using the software, refer to the manual for the
"WAGO-I/O-PRO". This manual is located in the Internet under
http://www.wago.com.
Manual
1.5.0
750-882 Media Redundancy ETHERNET Controller
WAGO-I/O-SYSTEM 750