Author Topic: Fx2424 ADC display in Online Monitoring  (Read 6405 times)

cch1955

  • Full Member
  • Posts: 198
  • Automated Machine Systems Designer
    • View Profile
Fx2424 ADC display in Online Monitoring
« on: June 22, 2016, 02:44:13 PM »
I discovered when starting to debug a new program that the ADC display window in Online Monitoring
does not show a value unless that ADC line is read in the program periodically.

I assumed this was raw data for the ADC line and was always shown if there was voltage between 0-5 VDC
even if not called by the program - not so!

The statement in the manual on page 5-4 is not clear that monitor in includes the raw ADC display Online Monitoring monitor values .

I suggest changing the monitor program to display NA instead of 0 in the analog monitor windows for analog line that are "Not Active" (no basic statements referencing that analog line currently) it would aid in debugging.

support

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 3170
    • View Profile
    • Internet Programmable PLCs
Re:Fx2424 ADC display in Online Monitoring
« Reply #1 on: June 23, 2016, 08:50:17 AM »
Thank you for your feedback and the suggestion!
Email: support@triplc.com
Tel: 1-877-TRI-PLCS

garysdickinson

  • Hero Member
  • Posts: 502
  • Old PLC Coder
    • View Profile
Re:Fx2424 ADC display in Online Monitoring
« Reply #2 on: June 23, 2016, 12:36:25 PM »
When run in simulation the ADC windows are blank until the user enters a simulated adc reading.

Blank may be as good an indicator as N/A for on-line monitoring to indicate that an ADC conversion has yet to be made.  I agree with Chris that a value of "0" is misleading.

Gary D*ickinson