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Standard File Formats

Access measurement data format (MDF), ASAM calibration data format (CDF), and binary logging format (BLF) files

Use the cdfx function to access an ASAM calibration data format CDFX-file.

Use the mdf function to access a measurement data format MDF-file, then read its data and save its attachments.

Use mdfDatastore to access a datastore of MDF-files.

Use blfread and blfwrite to import and export data from Vector binary logging format BLF-files.

Functions

expand all

cdfxAccess information contained in CDFX-file
instanceListParameter instances in the CDFX object
systemListECU systems in the CDFX object
getValueRetrieve instance value from CDFX object
setValueSet instance value in CDFX object
writeExport data of CDFX object to file
mdfAccess information contained in MDF file
channelListInformation on available MDF groups and channels
readRead channel data from MDF file
saveAttachmentSave attachment from MDF file
mdfVisualizeView channel data from MDF file
mdfDatastoreDatastore for collection of MDF files
readRead data in MDF datastore
readallRead all data in MDF datastore
previewSubset of data from MDF datastore
resetReset MDF datastore to initial state
hasdataDetermine if data is available to read from MDF datastore
partitionPartition MDF datastore
numpartitionsNumber of partitions for MDF datastore
blfinfoGet information about Vector BLF file
blfreadRead data from Vector BLF-file
blfwriteWrite data to Vector BLF-file

Related Information

Featured Examples

Access MDF Files

Access MDF Files

Open MDF files and access information about the file and its contents.

Open Script
Reading Data from MDF Files

Reading Data from MDF Files

Read channel data from an MDF file.

Open Script
Using MDF Files Via MDF Datastore

Using MDF Files Via MDF Datastore

Use the MDF Datastore feature of Vehicle Network Toolbox to quickly and efficiently process a data set spread across a collection of multiple MDF files. This workflow is also valuable when there is too much data to fit into available memory.

Open Script
Data Analytics Application with Many MDF Files

Data Analytics Application with Many MDF Files

Investigate vehicle battery power during discharge mode across various drive cycles. The data for this analysis are contained in a set of vehicle log files in MDF format. For this example, we need to build up a mechanism that can "detect" when the vehicle battery is in a given mode. What we are really doing is building a detector to determine when a signal of interest (battery power in this case) meets specific criteria. When the criteria is met, we will call that an "event". Each event will be subsequently "qualified" by imposing time bounds. That is to say an event is "qualified" if it persists for at least 5 seconds (such a qualification step can help limit noise and remove transients). The thresholds shown in this example are illustrative only.

Open Live Script
Mapping MDF Channels to Simulink Model Input Ports

Mapping MDF Channels to Simulink Model Input Ports

Programmatically map MDF channels and consume their data via input ports of a Simulink model. It performs the gathering of input port names of a Simulink model and correlates them to the contents of a given MDF file. A linkage between them is then created which consumes channel data sourced from the MDF file when the model runs.

Open Live Script
Working With ASAM CDFX Files in MATLAB

Working With ASAM CDFX Files in MATLAB

Import a calibration data file into MATLAB, examine and modify its contents, and export the changes back to a file on disk.

Open Live Script
Using ASAM CDFX Data With Simulink

Using ASAM CDFX Data With Simulink

Use calibration data from a CDF file as inputs to a Simulink model.

Open Live Script
Using ASAM CDFX Data With Simulink Data Dictionary

Using ASAM CDFX Data With Simulink Data Dictionary

Store calibration data from an ASAM CDFX file in a data dictionary and use these values as parameters to a Simulink model.

Open Live Script
Vehicle Network Toolbox Documentation
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