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Method Name: methodAutoTune

Method ID: 0x4021

Method Label: Autotune

Method Help: Run PID Autotune will automatically find best dynamic parameters for responsive valve positioning. Always isolate the valve from the process. The valve will move full open and full closed. The valve will continuously change position for about 5 minutes. To SVi1000 device, this operation need the device should be set PID selector to slot 0/ATO or slot 8/ATC


  • {
  • char nbr;
  • char status[3];
  • char prevMode;
  • long ids[3];
  • float fMin;
  • float fMax;
  • int nAgress;
  • int result;
  • send_trans(170,216,status);
  • send_trans(170,210,status);
  • if (_ivar_value(16461) != 0)
  • {
  • if (_ivar_value(16409) == 1)
  • {
  • ACKNOWLEDGE(literal_string(708));
  • }
  • else
  • {
  • ACKNOWLEDGE(literal_string(709));
  • }
  • process_abort();
  • }
  • send(249,status);
  • if (status[0] != 0)
  • {
  • display_response_status(249,status[0]);
  • DELAY(3,literal_string(697));
  • process_abort();
  • ;
  • }


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