Difference between revisions of "Impulse counter"

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'''FMB''' devices have pulse counter capability out of the box from firmware 03.28.07.Rev.03 and later.
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'''FMB''' devices have pulse counter capability out of the box from firmware [[FMB firmware errata#03.25.05.Rev.00|03.25.05.Rev.00]] and later.
  
 
'''Use case:'''
 
'''Use case:'''
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Pulse counter functionality enables the FMB devices to count digital impulses going to DIN1/DIN2. This means that 2 digital inputs of the FMB devices can now be used for precise fuel flow meter data reading. Impulse based fuel usage monitoring is much more accurate than a different type of fuel metering sensors and it makes the FMB devices a perfect solution for high fuel usage machines like cranes, construction vehicles, mining machines, agriculture equipment.
 
Pulse counter functionality enables the FMB devices to count digital impulses going to DIN1/DIN2. This means that 2 digital inputs of the FMB devices can now be used for precise fuel flow meter data reading. Impulse based fuel usage monitoring is much more accurate than a different type of fuel metering sensors and it makes the FMB devices a perfect solution for high fuel usage machines like cranes, construction vehicles, mining machines, agriculture equipment.
  
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'''Specification:'''
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'''How does it work?'''
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<table class="nd-othertables_2" style="width: 30%;">
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<tr>
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When pulse counter I/O is enabled, then Pulse Counter DIN1/DIN2 will count every DIN1/DIN2 state change to HIGH and send the counted number with the next record. Pulse counter value is reset after sending the record.[[File:Pulse_counter.gif|center|]]Specification
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        <th style="width: 10%; text-align:center; vertical-align:middle;">Model</th>
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        <th style="width: 10%; text-align:center; vertical-align:middle;">DIN1 Max frequency, Hz
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Maximum supported frequency is 50Hz.
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</th>
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        <th style="width: 10%; text-align:center; vertical-align:middle;">DIN2 Max frequency, Hz
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Maximum value 2147483647.
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</th><th>Input Voltage threshold (DIN1)</th><th>Input Voltage threshold (DIN2)</th></tr>
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        <tr>
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High level:
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        <td style="width: 10%; text-align:center; vertical-align:middle;">
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[[FMB920]]
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Input Voltage threshold (DIN1) 7.5V
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</td>
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        <td style="width: 10%; text-align:center; vertical-align:middle;">2000</td>
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Input Voltage threshold (DIN2) 2.5V
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<td style="width: 10%; text-align:center; vertical-align:middle;">-</td>
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        <td style="width: 10%; text-align:center; vertical-align:middle;">7.5V</td>
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{| class="wikitable"
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<td style="width: 10%; text-align:center; vertical-align:middle;">-</td>
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|+
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        <tr>
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!
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        <td style="width: 10%; text-align:center; vertical-align:middle;">[[FMB110]]
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!DIN1
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Max frequency, Hz
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!DIN2 
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Max frequency, Hz
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!Input Voltage threshold (DIN1)
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!Input Voltage threshold (DIN2)
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|-
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|[[FMB920]]
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|2000
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|<nowiki>-</nowiki>
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|7.5V
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|<nowiki>-</nowiki>
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|-
 +
|[[FMB110]]
 +
 
 
[[FMB120]]
 
[[FMB120]]
  
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[[FMB204]]
 
[[FMB204]]
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</td>
 
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        <td style="width: 10%; text-align:center; vertical-align:middle;">50</td>
 
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        <td style="width: 10%; text-align:center; vertical-align:middle;">2000</td>
 
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        <td style="width: 10%; text-align:center; vertical-align:middle;">7.5V</td>
 
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<td style="width: 10%; text-align:center; vertical-align:middle;">2.5V</td>
 
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<td>
 
−
 
  
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</td><td>
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|50
 +
|2000
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|7.5V
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|2.5V
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|-
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|[[FMB125]]
  
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</td></tr>
 
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        <tr>
 
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        <td style="width: 10%; text-align:center; vertical-align:middle;">[[FMB125]]
 
 
[[FMM125]]
 
[[FMM125]]
  
 
[[FMC125]]
 
[[FMC125]]
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</td>
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|50
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        <td style="width: 10%; text-align:center; vertical-align:middle;">50</td>
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|<nowiki>-</nowiki>
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        <td style="width: 10%; text-align:center; vertical-align:middle;">-</td>
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|7.5V
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<td style="width: 10%; text-align:center; vertical-align:middle;">7.5V</td>
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| -
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<td style="width: 10%; text-align:center; vertical-align:middle;">-</td>
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|}
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<td></td><td></td></tr></table>
 
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'''How does it work?'''
 
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When pulse counter I/O is enabled, then Pulse Counter DIN1/DIN2 will count every DIN1/DIN2 state change to HIGH and send the counted number with the next record. Pulse counter value is reset after sending the record.[[File:Pulse_counter.gif|center|]]
 

Revision as of 13:50, 27 October 2022

FMB devices have pulse counter capability out of the box from firmware 03.25.05.Rev.00 and later.

Use case:

Pulse counter functionality enables the FMB devices to count digital impulses going to DIN1/DIN2. This means that 2 digital inputs of the FMB devices can now be used for precise fuel flow meter data reading. Impulse based fuel usage monitoring is much more accurate than a different type of fuel metering sensors and it makes the FMB devices a perfect solution for high fuel usage machines like cranes, construction vehicles, mining machines, agriculture equipment.

How does it work?

When pulse counter I/O is enabled, then Pulse Counter DIN1/DIN2 will count every DIN1/DIN2 state change to HIGH and send the counted number with the next record. Pulse counter value is reset after sending the record.

Pulse counter.gif

Specification

Maximum supported frequency is 50Hz.

Maximum value 2147483647.

High level:

Input Voltage threshold (DIN1) 7.5V

Input Voltage threshold (DIN2) 2.5V

DIN1

Max frequency, Hz

DIN2

Max frequency, Hz

Input Voltage threshold (DIN1) Input Voltage threshold (DIN2)
FMB920 2000 - 7.5V -
FMB110

FMB120

FMB122

FMB130

FMB140

FMB202

FMB204

50 2000 7.5V 2.5V
FMB125

FMM125

FMC125

50 - 7.5V -
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