How to prevent data losses because of cable cuts? Ring redundancy
The advantage of ring redundancy per PDU is that a cable cut will not affect the other PDUs on the bus. This could
happen in a normal daisy chained serial bus topology.
However, Schleifenbauer has made their bus redundant. A single cable cut will not affect the readout or control of
the PDUs; it will try to get access through the alternative route on the ring. A cable cut is detected by our firmware
and an error message will be submitted to the database. This error becomes visible in the “ring” icon (that is open
or closed), which can be found on the right side of the “Device list”. The disadvantage of a serial bus topology is
therefore covered in the Schleifenbauer system.
See Part I “How to connect a databus” on the PDU
Page 53 of 58
V262_User manual
Schleifenbauer PDU
