Eliminating Conflicts between ROT and PIUSV
I use the PIUSV+ as an uninterruptable power supply and the ROT as KNX bus interface. Unfortunately, both devices use the same i2c address 0x18. PIUSV+ transmits the status information via this address while ROT has the Onewire interface mapped to it. When writing about ROT I assume that the alternative PIGATOR Onewire module might have the same problem.
With both devices installed, status information of the PIUSV+ is faulty. So the deamon immediately starts the shutdown countdown after booting.
Both devices have their addresses hard-wired on the board. Well - not the best way of engineering. Two jumpers for address configuration would have solved the problem easily.
Look for the DS2482-100 Chip on the module. You will find Pins 7 (AD1) and 8 (AD0) connected to GROUND. Carefully lift Pin 8 from the board using a soldering iron. Then connect this Pin to VCC (Pin 1).
Now, the Onewire interface is on address 0x19 and the PIUSV+ works correctly. I have not yet configured Onewire on my Pi. I am planning to test it and give an explanation here, how to set up the new address correctly.