750-841 WAGO, 750-841 Datasheet - Page 93
750-841
Manufacturer Part Number
750-841
Description
CONTR.ETHERNET TCP/IP 10/100MBIT
Manufacturer
WAGO
Datasheet
1.750-841.pdf
(288 pages)
Specifications of 750-841
Rohs Compliant
YES
No. Of Digital Inputs
10
No. Of Digital Outputs
10
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3.1.8.3.2 Overview of the Most Important Task Priorities (descending priority)
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
• I/O Bus Task / Fieldbus Task ( Internal ):
• Normal Task ( IEC-Tasks 1-10 ):
• PLC Comm Task (Internal):
• Background Task ( IEC-Tasks 11-31 ):
More information
For detailed information on the programming tool WAGO-I/O-PRO CAA,
please refer to the WAGO-I/O-PRO CAA manual. An electronic copy of this
manual can be found on WAGO’s web site:
The I/O Bus task is an internal task, which updates the I/O module data
from the process image.
Fieldbus tasks are triggered by fieldbus events (communications); therefore,
they only use processing time when the fieldbus is active.
IEC tasks with these priorities can be interrupted by the I/O Bus and
Fieldbus tasks. Therefore, if the watchdog is used, before selecting the
sampling rate, consider the number of I/O modules in the node and the
communication activity via the fieldbus.
The PLC Comm Task is only active when you are logged in with CoDeSys.
This task manages the communication with the CoDeSys-Gateway.
All internal tasks have a higher priority than the IEC background tasks.
Therefore, IEC background tasks are used for time-consuming and time-
uncritical jobs (e.g., SysLibFile functions)
Fieldbus Controller 750-841
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Fieldbus Controller
• 85
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