Internet PLC Forum
General => Technical support => Topic started by: cch1955 on June 22, 2016, 02:44:13 PM
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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.
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Thank you for your feedback and the suggestion!
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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