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When no I/O element is enabled, AVL packet comes with GNSS information only. After enabling I/O element(s) AVL packet contains current value(s) of enabled I/O element(s) along with GNSS information.<br/>If the device is connected to configurator all current I/O values are displayed in ''Current Value'' column.<br/>''Priority'' field allows enabling I/O elements and setting them a priority so they are added to the data packet, which is sent to the server. By default 10 I/O elements with low priority are enabled: ''Ignition'', ''Movement'', ''Data Mode'', ''GSM Signal'', ''Sleep Mode'', ''GNSS Status'', ''GNSS PDOP'', ''GNSS HDOP'', ''External Voltage'' and ''Speed''. ''Priority'' level (AVL packet priority) can be <span style=color:#F6A83E>Low</span>, <span style=color:#F6A83E>High</span> or <span style=color:#F6A83E>Panic</span>. All records made by {{{model|FMB640}}} are regular, and regular packets are sent as low priority records. When ''Low priority'' event is triggered, {{{model|FMB640}}} makes an additional record with an indication that the event was caused by an I/O element change (depending on ''Operand'' configuration). When ''High priority'' is selected, module makes an additional record with high priority flag and sends event packet immediately to the server using GPRS. ''Panic priority'' triggers same actions as ''High priority'', but if GPRS fails, it sends an AVL packet using SMS data if SMS data sending is enabled and the number is provided in ''SMS/Call Settings''.<br/>''High'' and ''Low'' levels define I/O value range. If I/O value enters or exits this range, {{{model|FMB640}}} generates an event. ''Operand'' parameter defines when to generate event: ''On Exit'', ''On Entrance'', ''On Both'', ''On Hysteresis'' or ''On Delta Change''.<br/>When ''Event Only'' is selected, I/O element status value will be appended only to eventual records, otherwise I/O element status value will appear in each AVL record.
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When no I/O element is enabled, AVL packet comes with GNSS information only. After enabling I/O element(s) AVL packet contains current value(s) of enabled I/O element(s) along with GNSS information.<br/>If the device is connected to configurator all current I/O values are displayed in ''Current Value'' column.<br/>''Priority'' field allows enabling I/O elements and setting them a priority so they are added to the data packet, which is sent to the server. By default 10 I/O elements with low priority are enabled: ''Ignition'', ''Movement'', ''Data Mode'', ''GSM Signal'', ''Sleep Mode'', ''GNSS Status'', ''GNSS PDOP'', ''GNSS HDOP'', ''External Voltage'' and ''Speed''. ''Priority'' level (AVL packet priority) can be <span style=color:#F6A83E>Low</span>, <span style=color:#F6A83E>High</span> or <span style=color:#F6A83E>Panic</span>. All records made by {{{model|FMC640}}} are regular, and regular packets are sent as low priority records. When ''Low priority'' event is triggered, {{{model|FMC640}}} makes an additional record with an indication that the event was caused by an I/O element change (depending on ''Operand'' configuration). When ''High priority'' is selected, module makes an additional record with high priority flag and sends event packet immediately to the server using GPRS. ''Panic priority'' triggers same actions as ''High priority'', but if GPRS fails, it sends an AVL packet using SMS data if SMS data sending is enabled and the number is provided in ''SMS/Call Settings''.<br/>''High'' and ''Low'' levels define I/O value range. If I/O value enters or exits this range, {{{model|FMC640}}} generates an event. ''Operand'' parameter defines when to generate event: ''On Exit'', ''On Entrance'', ''On Both'', ''On Hysteresis'' or ''On Delta Change''.<br/>When ''Event Only'' is selected, I/O element status value will be appended only to eventual records, otherwise I/O element status value will appear in each AVL record.
    
==Operands==
 
==Operands==
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[[Image:Fmb120_avg_const.png|300px|center]]
 
[[Image:Fmb120_avg_const.png|300px|center]]
 
For Boolean values of 5, values is used, that means value change is taken when new values is averaged to more than 99.3%.
 
For Boolean values of 5, 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.