RIO Deltas

Configuring RIO Deltas

Use the RIO Deltas page to configure RIO Deltas settings.

Purpose

Delta is an adjustable threshold that allows the user to determine, on a per-sensor basis, what change in value is required before the sensor is updated. All Excel 10 controllers have a guaranteed periodic update time of 55 seconds, which requires that all sensors report any change every update period. The delta for each sensor is used to reduce LonWorks Bus traffic by reducing the amount of updates on a sensor that are constantly or quickly changing. View or modify Deltas (change thresholds) for sensors.

Mode

Off-line or On-line

Procedure

1. Click the Deltas_pane button on the left pane to open the RIO's Deltas Configuration page.
2. Enter information into available fields.
3. Click Commit to save the settings or Reset to revert to the last saved settings.
4. If sensors are being used for display only, then they can have a larger value for the delta and rely on the guaranteed periodic update to update the sensor every 55 seconds regardless on the amount of change.
5. If the sensor is bound to another Excel 10 controller, configure a smaller delta so that the control algorithm does not see large changes in value.
6. The default value of 0 sends an update every 2 seconds.
7. Click Back to display the RIO's Input Confguration page.

Fields

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