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Problem

Pneumatic controller not responding to commands

Please perform all of the checks below if any connection issues occur while using a GDS Pneumatic controller connected to GDSLab V2.

  • Check that the com port settings are correct (see below)

                          Baud: 4800  Parity: O  Data bits: 8  Stop bits: 2

  • Check that the Com port number is correct (see helpsheet 169 for details)
  • If a spare Com port is available then try to connect the controller using this Com port
  • Ensure that the English version of windows is installed, other version will not work with the pneumatic controller
  • Ensure the cables are securely connected to the back of the pneumatic controller (including both the power cable and the RS232 cable)
  • Ensure that when targeting a pressure that there is sufficient input pressure applied to the controller to allow the targeted pressure to be met
  • Ensure that the correct full scale output (10000mV) and sensitivity (see calibration certificate) are entered into the object display



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