IFM Electronic AC402S - Safe Cross Communication

SmartPLC SafeLine AC4S with fieldbus interfaces
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8.6 Safe cross communication
Content
Note on the size of the exchange objects ..............................................................................................87
Set up fail-safe network variables ..........................................................................................................88
Use fail-safe network variables in the application ..................................................................................89
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► Familiarise yourself with the following CODESYS functions!
 Fail-safe network variables
→ Online help > Add-Ons > CODESYS Safety > CODESYS Safety NetVars
The SmartSPS SafeLine AC4S device family supports the Safety NetVars CODESYS function
(fail-safe network variables). Safety NetVars ensure transmission and reception of safe data between
2 fail-safe PLCs in a CODESYS project.
Safety NetVars work according to the transmitter-receiver principle. It is necessary to create a
transmitter-receiver pair for each requested transmission direction. A transmitter can have several
receivers.