i4connected Knowledgebase 5.6

The Deadband feature

Abstract

This article describes how the Deadband feature controls the health of i4connected signals, during the process of transferring data.

This article describes how the Deadband feature operates within the i4connected system.

The Deadband is a band of input values which define a specific signal variation that will be ignored by the signal measurements.

The Deadband feature is defined in the Edit Signal / Add panel.

Deaband_setting.jpg

The Deadband settings

By inserting a Signal Deadband the user defines the minimum signal variation point that will be accepted as an update value. Any values that are beneath the defined Deadband will be ignored by the Signal measurements.

For example, when setting the Deadband to 0.5 and having a previous value of 10, a subsequent value of 10.4 or 10.5 will be ignored, but a value of 10.6 will be accepted. The same applies for decreasing signal values, hence, if the Deadband is set to 0.5 and the previous value is 10, a subsequent value of 9.6 or 9.5 will be ignored, but a value of 9.4 will be accepted.

Applying a Deadband setting to a signal will basically decide how low the difference between values should be, to be considered as signal updates or unnecesary noise.

Further on, the user can also insert a Time Deadband expressed in minutes, seconds and / or milliseconds.

The Time Deadband can come in hand when having a Signal that usually receives a high amount of updates. In order to avoid overloading the system, the user can insert a specific Time Deadband that will dictate a minimum interval of time to wait before storing the new values and considering them as updates. All the values that are updated during this interval will be ignored and considered as unnecessary noise.