Wastle Posted February 27, 2019 Report Share Posted February 27, 2019 I Have 4 weighing systems, identical hardware and software, one of which has a weight display issue. The reading whether empty or loaded fluctuates. I have measured the input to the IO LC1 card and it is steady to within a 0.1mV. What am I missing? the system has been calibrated, but doesn't improve it. The other 3 system work fine. Quote Link to comment Share on other sites More sharing options...
MVP 2023 kratmel Posted February 27, 2019 MVP 2023 Report Share Posted February 27, 2019 Usually I have problems with weight cells only.They failed due to mechanical damage or shock load on the weight device.Did you test the replacement of a module with bad behavior into a good module from a system that works fine? Is it possible that there is a source of electromagnetic interference near the device? Quote Link to comment Share on other sites More sharing options...
MVP 2023 Ausman Posted February 27, 2019 MVP 2023 Report Share Posted February 27, 2019 +1 to Kratmels suggestions. Also, I know someone who had a weird issue and the cell was connected incorrectly, back to front I recall. Was miles away in the bush, and he picked up the error looking at photos sent to him. Don't know the full ins and outs, though, just that it was a wrong connection. cheers, Olfa Quote Link to comment Share on other sites More sharing options...
Wastle Posted February 28, 2019 Author Report Share Posted February 28, 2019 There are sources of electromagnetic fields, but it doesn't bother the other systems. I have already changed the module. Out of interest(newbie here) I am assuming the calibration settings are stored in the CPU which is located in the HMI. Quote Link to comment Share on other sites More sharing options...
MVP 2023 Ausman Posted March 1, 2019 MVP 2023 Report Share Posted March 1, 2019 18 hours ago, Wastle said: I have already changed the module. Changed for new, or tried one of the others known good? Ensure that all the plugs, cables and sockets connecting the expansion modules are fully in place and in good condition. Do continuity checks on all the connections from source to destination. cheers, Aus Quote Link to comment Share on other sites More sharing options...
Gabriel Franco Posted March 6, 2019 Report Share Posted March 6, 2019 On 2/28/2019 at 5:03 AM, Wastle said: There are sources of electromagnetic fields, but it doesn't bother the other systems. I have already changed the module. Out of interest(newbie here) I am assuming the calibration settings are stored in the CPU which is located in the HMI. Calibration data keeps on IO-LCx module. 1 Quote Link to comment Share on other sites More sharing options...
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