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WAGO-I/O-SYSTEM 750
Programming the PFC using WAGO-I/O-PRO 147
750-880, 750-880/025-000 ETHERNET Programmable Fieldbus Controller
Manual
Version 1.0.1
CoDeSys tasks with the command "tsk".
If in a PLC program, operating system functions are used; e.g., for the handling of
"sockets" or the "file system," these execution times are not taken into
consideration covered by the command "tsk".
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CTU counter:
The CTU counter operates in a value range of 0 to 32767.
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Network load:
The ETHERNET Programmable Fieldbus Controller has one CPU responsible
both for running the PLC program and for handling network traffic.
Ethernet communication demands that every telegram received is processed,
regardless of whether it is intended for the ETHERNET Programmable Fieldbus
Controller or not.
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A significant reduction of the network load can be achieved by configuring the
bandwidth limit of the integrated switch module or by using external "switches"
instead of "hubs".
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However, broadcast telegrams can either only be checked by the sender or with
configurable switches that have broadcast limiting. A network protocol
analyzer/monitor such as
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Do not use bandwidth limits to increase the operational safety!
The bandwidth limit that can be configured in the WBM under the "Ethernet" link
is not suitable for increasing the operating reliability of the "WebVisu", as in this
case telegrams are ignored or rejected.
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Additional Information
The definition of hard benchmark data is not possible (due to the reasons
mentioned above). For planning support, please use the application notes
published online for relevant projects featuring the capability of Web
visualization. This information is located at
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