Functions
4.7 Response to errors
PN/BACnet LINK
44
Operating Instructions, 10/2017, A5E39895543-AA
PROFINET network error
If the PN/BACnet LINK loses the PROFINET connection, the PN/BACnet LINK performs the
following actions:
●
The PN/BACnet LINK sets the OUT_OF_SERVICE status bits of all server objects.
●
The PN/BACnet LINK allocates the system state in the device object with
NON_OPERATIONAL.
This happens, for example, if the S7 controller is switched off or the network connection on
the PROFINET side is interrupted.
Once the PROFINET connection is available again, the device behaves as after a reboot.
This means, among other things, that all subscriptions from other devices are lost on the
server. Data exchange only resumes again after a renewed logon call of the affected
devices.
Network error BACnet
If the PN/BACnet LINK loses the BACnet network connection, the PN/BACnet LINK runs
corresponding SIMATIC diagnostics.
Error in the control program
If the desired device functions (server, client) are not activated by the user program, the
associated functionalities are not available to the network interfaces.
For example, no data should be transferred between the PROFINET side and the BACnet
side.
Device fault
Device errors are indicated by the status LEDs. If necessary, corresponding diagnostic
messages are also issued. These can then be taken from the diagnostic buffer of the S7
controller either immediately or during the next start-up.
Note
An Ethernet switch is integrated in the PN/BACnet LINK. This switch is also operational in an
error state so that the PROFINET network continues to run.
Summary of Contents for SIMATIC PN/BACnet LINK
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