I’m not very sure but could then the problem be solved just substituting the original PPR calculation:
PPR = (node.getResponseBuffer(0x05)/1000.0f);
For this one?:
PPR = ((node1.getResponseBuffer(0x05) + (node1.getResponseBuffer(0x06)*65532))/1000.0f);
Something like that would also have to be done with current and power (at least, if you’re expecting more than 65,5 amp and/or more than 65,5 kW)