System channels

System channels are sourced from the data processor unit.

ClosedGeneric parameters

  • Connection: A unique hardware identifier created by the system.
  • Reading: Current value of the channel. Show the readings by selecting the desired channels and clicking Live update. Not in edit dialog.
  • Units: The reading unit description shows in this column.
  • Name: The channel name must be unique and contain valid characters (invalid characters are single and double quotes, '\', '@', '#', '&', '<' and '>'). Invalid channel names are 'true' and 'false' (case sensitive).
  • Description: Enter an optional detailed description of the channel.
  • Collect: Select the Collect checkbox to write the channel data to the SIE data file during a test run.
  • Chart type: Set the default chart type for the channel. Not in edit dialog.
  • Decimals: Set the default decimal places for channel displays.
  • Sample rate: Set the desired channel sample rate. If the sample rate changes, all dependent computed channels and DataModes™ are changed automatically.
  • Measurand: Enter an optional measurement type.
  • Data type: The format of the channel data output (read only).

ClosedSpecific parameters

  • Input mode: This defaults to the CX23-R module, which is the source of the system channels.
  • Expiration time: Specify the time period in seconds that can elapse without data before data is considered stale and the output is set to the invalid value. The value may be any real number greater than zero.
  • Invalid value: Specify the value to be set when the expiration time has elapsed without any data. The value may be any real number.

ClosedScaling parameters

  • Scaling mode: Set the channel scaling mode.
    • Defined slope intercept: Specify the Slope and Intercept of the scaling line.
    • Defined zero span: Specify the Electrical zero of the sensor scaling line. Enter both the Electrical span and the Physical span.
    • Defined two point: Specify the Electrical 1, Physical 1, Electrical 2 and Physical 2 points to define the scaling line.
    • Experimental two point: Use the Experimental two point scaling option to define the two point parameters based on experimental measurements.
  • Electrical units: Electrical units of channel input.
  • Units: Physical units of measurement for the channel.
  • Electrical 1: Specify for Defined two point scaling mode. Automatically set after Experimental two point scaling.
  • Physical 1: Specify for Defined two point scaling mode. Automatically set after Experimental two point scaling.
  • Electrical 2: Specify for Defined two point scaling mode. Automatically set after Experimental two point scaling.
  • Physical 2: Specify for Defined two point scaling mode. Automatically set after Experimental two point scaling.
  • Electrical zero: Specify for Defined zero span scaling mode.
  • Electrical span: Specify for Defined zero span scaling mode.
  • Physical span: Specify for Defined zero span scaling mode.
  • Slope: Specify for Defined slope intercept scaling mode.
  • Intercept: Specify for Defined slope intercept scaling mode.
  • Prerun zero mode: Set to Interactive only to allow channel zeroing.
  • Prerun zero offset: Automatically set after zeroing a channel.
  • Prerun zero target: Specify before zeroing a channel.
  • Range min and max: Specify the expected extreme values of the channel. Values may be set as positive or negative numbers.
  • Warning and Alarm min and max: Specify the desired values for warning and alarm thresholds.