Beckhoff TwinSAFE logic FB

System description
16 Function blocks for TwinSAFE logic components
Table 2-4: State information KL6904/EL6900
Value
State
Description
1
RUN
All function blocks and TwinSAFE connections assigned to the TwinSAFE
group operate properly, and all TwinSAFE connections assigned to the
TwinSAFE group are up and running
2
STOP
State after initialization
3
SAFE
All function blocks and TwinSAFE connections assigned to the TwinSAFE
group operate properly, and at least one of the TwinSAFE connections
assigned to the TwinSAFE group is not yet up and running
4
ERROR
At least one assigned function block or one assigned TwinSAFE connection
has reported an error
5
RESET
A positive edge (FALSE->TRUE) for acknowledgement of a function block
or a TwinSAFE connection error was detected on the ERR_ACK input. The
system is waiting for the negative edge of the ERR_ACK input
2.2.1.2 TwinSAFE function block list diagnostics
The state of TwinSAFE FBs is displayed on online summary. The current state data are read from the
EL6900/KL6904 via a manual refresh.
Figure 2-3: Function block list online values
If the checkboxes 'Map State' and 'Map Diag’ for the individual TwinSAFE FBs are set, the state and
diagnostic data for the FBs are copied into the cyclic process image and can be linked directly with PLC
variables. The description of the state and diagnostic values can be found under the respective FBs.