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Template:FTX8XX/9XX Input/output (I/O) (view source)

Revision as of 18:41, 22 May 2024

1,255 bytes removed ,  22 May
→‎Avg Const
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Record is generated when input value changes and the absolute change becomes equal to or higher than the limit value.
 
Record is generated when input value changes and the absolute change becomes equal to or higher than the limit value.
 
[[Image:Fmb120_on_delta_change.png|x150px|none]]
 
[[Image:Fmb120_on_delta_change.png|x150px|none]]
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==Avg Const==
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If ''Avg Const'' value is 10, new value must be present for 1 second to register the change to a new value. Internal sampling is done every 40 ms, so 25 samples are taken per second. To configure 5 seconds of averaging multiply 10 by 5 yielding 50 as ''Avg Const'' value. The same logic works if the device is in [[{{{model|FMB1YX}}}_Sleep_modes#Deep_Sleep_mode|Deep Sleep mode]].<br />Averaging follows RC exponential curve, see image below:
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[[Image:Fmb120_avg_const.png|300px|none]]
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For Boolean values of 5τ, values is used, that means value change is taken when new values is averaged to more than 99.3%.
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[[File:Alert.png|x30px|]]'''''NOTE: Average Constant is not used as an activation timer or delay timer. But it is used as a filter.'''
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''
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Event is generated at different times due to variations in voltage. Average constant is designed to filter jumps instead of event generation time.
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For example: generation is set to happen at  14500mV, and actual voltage is set to 15000mV, that record will be generated earlier than 10s with avg const set to 100. This is because avg const is calculating time it takes for device to get to actual voltage (in this case 15000 mV), while device will be generating records when it hits 14500mV.
 
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