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Christain Cobb

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Aug 3, 2024, 8:59:17 PM8/3/24

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How to use Magneti Marelli Vision 5 Mapping Software for ECU calibration

Magneti Marelli Vision 5 is a display and calibration tool that provides a flexible control interface for electronic devices based on the Magneti Marelli Competition communication protocol[^1^]. It allows the access to a set of channels resulting from real time ECU calculations and the editing of the maps saved in .PTA files[^1^]. In this article, we will show you how to use Vision 5 to perform ECU mapping for a Ducati 749D motorcycle with an IAW 5AM.b1/HW610?2216-DT70 ECU[^2^].

Step 1: Connect the ECU to the PC

You will need a CAN interface to connect the ECU to the PC via a serial port or an Ethernet cable[^1^]. You can use any compatible interface that supports the Magneti Marelli proprietary protocol, such as the Vision Jnr[^3^]. You will also need a SRA CFG file for your specific ECU model, which contains the configuration of the channels and windows[^2^]. You can download it from the Magneti Marelli website or create it using DSETUP, a tool included in Vision 5[^1^].

Step 2: Open Vision 5 and load the configuration file

Once you have installed Vision 5 on your PC, you can open it and load the SRA CFG file for your ECU. You will see a screen layout with different windows that display various channels and parameters. You can customize the screen layout according to your preferences by adding or removing pages, windows and channels[^1^]. You can also save your layout as a .VSN file for future use.

Step 3: Read and write the ECU memory

Vision 5 can read and write the full contents of the ECU memory to and from .TAB files. You can use this feature to backup your original ECU data or to load a modified data file. To read or write the ECU memory, you need to select the appropriate option from the File menu and choose the file name and location. You will see a progress bar indicating the status of the operation[^1^].

Step 4: Edit the calibration maps

The calibration maps are stored in .PTA files, which are partial areas of memory that contain specific tables for different functions. You can browse and edit the calibration maps using Vision 5's graphic editor, which shows both numerical and graphical representations of the data. You can also use compare tools to highlight differences between two .PTA files or between a .PTA file and an ECU memory area[^1^]. To edit a calibration map, you need to select it from the Maps menu and choose whether you want to read it from the ECU or from a file. Then you can modify the values using your mouse or keyboard, or using a potentiometer desk if you have one connected to your PC. You can also start an automatic mapping procedure that adjusts the values based on feedback from sensors[^1^]. When you are done editing, you need to save your changes to a .PTA file or write them directly to the ECU.

Step 5: Monitor and test the ECU performance

Vision 5 allows you to monitor and test the ECU performance in real time using different windows and tools. You can use display windows to show instantaneous values of channels, oscilloscope windows to show graphical evolution of channels, potentiometer windows to control channels manually, diagnostics windows to check for errors or alarms, and external tools windows to link to other applications such as Excel[^1^]. You can also use Vision 5's Easy Scope function, which is a diagnostic tool that provides advanced features such as waveform analysis, trigger settings, cursors, measurements, zooming and saving[^3^]. To use Easy Scope, you need to select it from the Tools menu and choose which channels you want to monitor. Then you can adjust the settings and view the results on your screen.

Conclusion

Magneti Marelli Vision 5 is a powerful software that enables you to perform ECU mapping for