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ALM-BR4-4.3 Manual

 

 

10 

 

  Copyrights ECOTRONS LLC                        www.ecotrons.com 

 

How to Communicate to ALM GUI 

 

The 3-pin connector in the picture above is only used for flashing the S19 file. And that is 
RS232 bus. 

 

The  ModBUS  or  RS485  communication  must  be  through  the  regular  port  “A”  and  “B” 
showed in second picture above. 

These two are different communication interfaces. The correct process is: 

1) Flash the S19 file via the 3-pin connector on the board using EcoFlash software. 

2) Connect the ALM-GUI-

RS485 software tool to Port “A” and “B”, via RS485-USB 

converter. 

We  have  not  combined  the  2  communication  interfaces  in  one  software  because  the 
flashing  process  requires  the  bootloader  to  be  activated,  which  is  not  compatible  with 
RS485 / ModBUS. 

Содержание ALM-BR4-4.3

Страница 1: ...BR4 4 3 Accurate Lambda Meter ALM BR4 4 3 Mini Board Version V1 0 COPYRIGHTS ECOTRONS LLC ALL RIGHTS RESERVED www ecotrons com Note If you are not sure about any specific details please contact us at...

Страница 2: ...ht way or it s left in the free air Make sure the environment is dry and it s not close to the inflammable materials The ALM Board is correctly connected to DC power supply 12V battery GND H and GND R...

Страница 3: ...sion 3 3 1 Appearance picture 3 3 2 Dimensions Unit mm 4 Oxygen Sensor Protection 5 ALM Board Operating Instructions 6 5 1 Pin Assignment 6 5 2 Communication Protocol for RS485 Bus 7 How to Communicat...

Страница 4: ...op mode accurately around 780o C degrees ALM Board communicates using RS485 ALM Board is designed to fit into the OEM s controller case with a very small footprint It has its own LSU 4 9 ADV sensor co...

Страница 5: ...05 1 70 Air Fuel Ratio Fuel dependent see lambda range and accuracy Range of O2 21 21 Heater Control Built in PID control with CJ125 Current Typical 1A Peak 3 5A Heater return H Separate wire from Gro...

Страница 6: ...ALM BR4 4 3 Manual 3 Copyrights ECOTRONS LLC www ecotrons com Appearance and Dimension 3 1 Appearance picture...

Страница 7: ...ALM BR4 4 3 Manual 4 Copyrights ECOTRONS LLC www ecotrons com 3 2 Dimensions Unit mm...

Страница 8: ...vehicle you can just un plug the LSF and plug in the wideband LSU sensor into the same hole Bosch LSU and LSF have the same size of the thread More User Notes LSU sensors are not designed to work wit...

Страница 9: ...ALM BR4 4 3 Manual 6 Copyrights ECOTRONS LLC www ecotrons com ALM Board Operating Instructions 5 1 Pin Assignment...

Страница 10: ...0V 0V Connector C A RS 485 Communication B RS 485 Communication GND Ground Reference ground 0V 0V 5 2 Communication Protocol for RS485 Bus RS485 communication is based on Modbus protocol Ecotrons Modb...

Страница 11: ...messages PLC to ALM Request Description Data byte ADR 50 CMD 03 Start Addr Hi 20 Start Addr Lo 00 No Bytes Hi 00 No Bytes Lo 04 CRC CHK Lo 42 CRC CHK Hi 48 2 Registers for received data responding mes...

Страница 12: ...h 8 bit xx LSU Temperature LSU Temperature High 8 bit 256 LSU Temperature High 8 bit 0 023438 Deg K 840 to 1303 LSU Temperature Low 8 bit xx LSU Faults High 8 bit xx LSU Sensor faults LSU Faults High...

Страница 13: ...ort A and B showed in second picture above These two are different communication interfaces The correct process is 1 Flash the S19 file via the 3 pin connector on the board using EcoFlash software 2 C...

Страница 14: ...rt 2 is connected to the 3 pin connector of the ALM board Note The MAX 232 adapter and USB RS232 converter are optional and they are not included in the standard ALM Board kits Users can connect the A...

Страница 15: ...nection between ALM borad and RS485 ModBUS must be disconnected Otherwise S19 cannot be flashed 6 2 ALM GUI for Modbus Default Configuration Port Num Please look it up in your computer Baud Rate 19200...

Страница 16: ...U yellow wire VM short to GND 1 Check the harness for short to ground 2 Change the LSU E5 LSU black wire UN short to power 1 Check the harness for short to power 2 Change the LSU E6 LSU black wire UN...

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