Sorry, the MicroChip Forum is very slow,I prefer to use overflow site to ask questions.

dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04    device 

 Sample Code   
              // configure comparator2  


    CMPCON2bits.CMPON = 1;   // enable comparator 
CMPCON2bits.INSEL = 1;   // select CMP2B input pin (RB0) 
CMPCON2bits.RANGE = 1;   // select high range, max DAC value = Avdd/2        
//CMPDACx: COMPARATOR DAC CONTROL REGISTER        
//CMREF<9:0>: Comparator Reference Voltage Select bits 
CMPDAC2 = CURR_HWLIM;    // DAC threshold 


  #define CURR_HWLIM 1023 // 1023 // 10.15 * 101A  

MicroChip Sample code setting CURR_HWLIM which 1023A to COMPDAC2 which expects voltage

I think that's mistake.