The channel name indicates the name with which that channel will be displayed in the graphs and makes it easier to read. The input value 0V (coding = 0) indicates the value of the channel corresponding to the input equal to 0V, if analogue input, or to the coding 0 if Can Bus. Similarly for the 5V input (code 1023). If instead you choose the gain / offset display the values will be recalculated as gain and offset.