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AAdsu.1
Visitor II
February 4, 2020
Question

Device is not working with multiple MODBUS slave

  • February 4, 2020
  • 0 replies
  • 1165 views

Dear Sir/Madam,

Using ST490ABDR IC as RS485in the Weather Monitoring project. The device is not working with multiple MODBUS slave. I observed signal level on the Oscilloscope, it is dropped at the time of query. Please find attached Schematic and wave forms for your reference. Verify the the Schematic and Suggest changes.

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