WAGO -I/O-SYSTEM 750 Technical Description, Installation And Configuration page 65

Parameter
Behavior in case of
a PROFINET I/O
fault
Reaction to an
internal bus fault
WAGO-I/O-SYSTEM 750
PROFINET IO
Setting
Stop internal bus
transmission
Set output image to zero
Freeze output image
Switch Default value*)
PROFINET I/O stop data
exchange*)
Set input image to zero
Freeze input image
*) Default settings
PROFINET IO 750-340
I/O Device Configuration
Description
In the case of a malfunction of the
PROFINET IO communication, the
status of the connected output
periphery can be influenced in various
ways:
The process data exchange on the
internal bus is stopped, all outputs
drop out after a module specific
monitoring time of 100 ms
All outputs are immediately reset
All outputs maintain the last status
before the malfunction
All outputs switch the substitute value
configured when designing the
module
In the event of a malfunction of an
internal communication between
fieldbus controller and I/O modules,
such as, for example no end module,
Separates the cyclic connection to the
PROFINET IO controller.
The input information of the
respective periphery module is set to
zero
The input information of the
periphery module prevailing before
the fault is maintained
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