Parameterization and Commissioning
BC5250
45
Version: 2.0.0
4.2.8
K-bus
Note
Bus Terminal and end terminal required
To operate a Bus Terminal Controller of the BC or BX series, at least one Bus Terminal
with process image and the end terminal must be connected to the K-bus.
BX Settings tab
Fig. 41: BX Settings tab
Check Terminals during Start-up
When a boot project is created, the current Bus Terminal configuration is stored. The connected Bus
Terminals are checked when the Bus Terminal Controller restarts. If this option is selected, the Bus Terminal
Controller does not enter into data exchange. The PLC project will not be started.
Auto K-Bus Reset
Once a K-bus error has been rectified, the Bus Terminal Controller automatically resumes the data
exchange.
CAUTION
Once a K-Bus error has been rectified, the outputs become active again im-
mediately!
Ensure that the outputs are reactivated immediately and that analog outputs retain their
programmed value, if this is not dealt with in your PLC project.
Clear Outputs on Breakpoint
If breakpoints are set in PLC Control, the K-Bus is no longer processed, i.e. the outputs are set to a safe
state (zero).
K-Bus Sync Mode
Writing and reading of the Bus Terminals can take place synchronously with task 1 or the fieldbus.
