It is to generate analog input event by comparing the current value with the last queued up value or if it exceeds the pre-defined dead band value. There are two modes.
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Fixed mode: An event will be generated when there is a difference between the current value and the event value queued up exceeds the dead band value configured.
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Integral mode: An event will be generated when there is a difference between the current value and value that is queued up which is integrated over time and if that absolute value exceeds the dead band value.
Deadband based events generated can be reported to master using three variations.
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16-bit –analog input current value is reported to master as signed 16-bit integer. Range is from -32768 to +32767.
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32-bit – analog input current value is reported to master as signed 32-bit integer. Range is from -2147483648 to +2147483647.
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Single precision floating point – analog input current value is reported to master as 32-bit floating (data type REAL). Range is from -3.4*10^38 to +3.4*10^38.