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Entry  Tue Jul 9 18:19:50 2024, Shane, Update, CDS, ADC-DAC loopback testing and IOLAN installation iolanServerTerminal.jpegADC-DAC_Loopback_Testing.xlsxupdatedc1msc.jpeg
    Reply  Tue Jul 16 18:43:07 2024, Shane, Update, CDS, ADC-DAC loopback testing and IOLAN installation Follow-up_ADC-DAC_Loopback_Testing.xlsx
Message ID: 410     Entry time: Tue Jul 16 18:43:07 2024     In reply to: 399
Author: Shane 
Type: Update 
Category: CDS 
Subject: ADC-DAC loopback testing and IOLAN installation 
UPDATE: Follow up ADC-DAC loopback testing now complete, matching all the ADC channels to a single DAC channel, and then matching all the DAC channels to a single ADC channel (see attached xlsx file or access directly here). Also note c1msc model file has been updated to include the second set of 16 ADC channels. The newly added channels also have their own filter modules, but those are not needed for anything other than the loop-back testing and can now be deleted if we don't want to keep them.

Quote:
[Shane, Jon]

Finished ADC-DAC loopback testing today (see attached xlsx file or access directly here). All looks well with the first 8 channels, with the gain hovering just under 2. Also edited c1msc model in simulink to add channels 7-15 (the last 8 channels), and changed the rate back to 64K. See image 1 for the updated c1msc model. The last 8 channels are also looking good and show no problems, with slightly more scattering for the gain, but all values very close to 2.

We also installed the new eight-channel Perle IOLAN SDS8 terminal server today. Image attached.

NOTE: When we were installing it, we noticed an energized wire dangling from the 24V power supply. Has since been fixed and put back into place.

 

Attachment 1: Follow-up_ADC-DAC_Loopback_Testing.xlsx  11 kB
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