BECKHOFF EL6900-FB - Manual (Page 78)

Function blocks
76 Function blocks for TwinSAFE logic terminals
3.14 The CONNECTION SHUTDOWN function block
3.14.1 Functional description
FB CONNECTION SHUTDOWN is used to deactivate TwinSAFE connection. If the block input becomes
active, the connection is closed, a shutdown command is sent to the FSoE partner, and feedback is sent
to the output. The connection is closed and the output is set if the communication partner receives a
shutdown command.
The output is only reset when the connection to the FSoE partner is in DATA state again.
The FSoE master will attempt to re-establish the connection and the FSoE slave will respond to the
connection again when the block input is no longer active.
This block is required for modular safety concepts required involving machine components installed on a
temporary basis. This functionality is also required for machines involving tool changes.
Figure 3-35: CONNECTION SHUTDOWN function block
Note
KL6904
The Connection Shutdown block is not available in the KL6904.