Jump to content
OMRON Forums

CPU ADC input for encoder conversion table


yfleong
 Share

Recommended Posts

I'm using Pmac2A/PC104 with OPT12. 12bits ADC input, I wish to use this input as the motor feedback device.

 

I did follow the instruction set the following

CPU Analog Inputs

I903 = 1746 ;Set ADC clock frequency at 4.9152 MHz

WX:$C014, $1FFFFF ;Clock strobe set for bipolar inputs

M105->X:$0710,12,12,S ;ADCIN_1 on JMACH1 connector pin 45

M205->X:$0711,12,12,S ;ADCIN_2 on JMACH1 connector pin 46

 

During set-up encoder conversion table, there are only "Acc28 A/D register (no rollover)" in conversion type. Source Address "$C005 PMAC2(ADC1A)"

But, I found that the value at position not tally to the value M105. The origin position feedback is 16 bits data, how to configure it to 12 bits?

 

Link to comment
Share on other sites

  • Replies 5
  • Created
  • Last Reply

Top Posters In This Topic

  • 2 weeks later...
Guest
This topic is now closed to further replies.
 Share


×
×
  • Create New...