Changes

'''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.

'''FMB''' devices have pulse counter capability out of the box from firmware 03.28.07.Rev.03 and later.

'''Use case:'''

'''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.

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?'''

'''Specification:'''

 

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

 

        <th style="width: 10%; text-align:center; vertical-align:middle;">Model</th>

        <th style="width: 10%; text-align:center; vertical-align:middle;">DIN1 Max frequency, Hz

 

        <th style="width: 10%; text-align:center; vertical-align:middle;">DIN2 Max frequency, Hz

 

</th><th>Input Voltage threshold (DIN1)</th><th>Input Voltage threshold (DIN2)</th></tr>

High level:

 

        <td style="width: 10%; text-align:center; vertical-align:middle;">

[[FMB920]]

 

        <td style="width: 10%; text-align:center; vertical-align:middle;">2000</td>

 

<td style="width: 10%; text-align:center; vertical-align:middle;">-</td>

{| class="wikitable"

        <td style="width: 10%; text-align:center; vertical-align:middle;">7.5V</td>

<td style="width: 10%; text-align:center; vertical-align:middle;">-</td>

!DIN1

        <td style="width: 10%; text-align:center; vertical-align:middle;">[[FMB110]]

Max frequency, Hz

!DIN2

Max frequency, Hz

!Input Voltage threshold (DIN1)

!Input Voltage threshold (DIN2)

|-

|[[FMB920]]

|2000

|<nowiki>-</nowiki>

|7.5V

|<nowiki>-</nowiki>

|-

|[[FMB110]]

 

[[FMB120]]

[[FMB120]]

[[FMB204]]

[[FMB204]]

[[FMM125]]

[[FMM125]]

[[FMC125]]

[[FMC125]]

</td>

|<nowiki>-</nowiki>

        <td style="width: 10%; text-align:center; vertical-align:middle;">50</td>

         <td style="width: 10%; text-align:center; vertical-align:middle;">-</td>

<td style="width: 10%; text-align:center; vertical-align:middle;">7.5V</td>

<td style="width: 10%; text-align:center; vertical-align:middle;">-</td>

<table class="nd-othertables_2" style="width: 30%;">

<td></td><td></td></tr></table>

<tr>

 

         <th style="width: 10%; text-align:center; vertical-align:middle;">Input</th>

        <th style="width: 10%; text-align:center; vertical-align:middle;">Max frequency (Hz)</th>

        <th style="width: 10%; text-align:center; vertical-align:middle;">Min Voltage threshold (V)</th>

    </tr>

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|]]

        <td style="width: 10%; text-align:center; vertical-align:middle;">DIN1</td>

        <td style="width: 10%; text-align:center; vertical-align:middle;">7.5</td>

        <td style="width: 10%; text-align:center; vertical-align:middle;">DIN2</td>

        <td style="width: 10%; text-align:center; vertical-align:middle;">2.5</td>

        <td style="width: 10%; text-align:center; vertical-align:middle;">2.5</td>

        <td style="width: 10%; text-align:center; vertical-align:middle;">AIN3</td>

        <td style="width: 10%; text-align:center; vertical-align:middle;">2.5</td>

        <td style="width: 10%; text-align:center; vertical-align:middle;">2.5</td>