Recent content by birdsong

  1. B

    plc modbus rtu timeout oscillascope

    I am getting a timeout message on both an IDEC and productivity1000 plc when trying to read from a dfrobot rs485 temperature and humidity sensor. I can see the response but the PLC cant seem to recognise the response. Has any one got some suggestions for me to try? Yellow is A+ to 0vdc, blue is...
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