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Read single value of specified measurement


value = readDAQListData(xcpch,measurementName)
value = readDAQListData(xcpch,measurementName,count)



value = readDAQListData(xcpch,measurementName) acquires a single value for a specified measurement, and stores it in the variable, value. If the measurement has no data, then the function returns an empty value.


value = readDAQListData(xcpch,measurementName,count) acquires a single value for a specified measurement for the specified count. If the measurement has no data, then the function returns an empty value.


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Create an XCP channel connected to a Vector CAN device on a virtual channel. Set up a DAQ measurement list and acquire data from a '100ms' events 'Triangle' measurement.

Create an object to parse an A2L file and connect that to an XCP channel.

a2lfile = xcp.A2L('XCPSIM.a2l')
xcpch = xcp.Channel(a2lfile, 'CAN', 'Vector', 'Virtual 1', 1);

Connect the channel to the slave.


Create a measurement list with the '100ms' event and 'PMW', 'PWMFiltered', and 'Triangle' measurements.

createMeasurementList(xcpch, 'DAQ', '100ms', {'PMW','PWMFiltered','Triangle'})

Start the measurement.


Acquire data for the 'Triangle' measurement for 5 counts.

value = readDAQListData(xcpch, 'Triangle', 5)
value =

   -50   -50   -50   -50   -50

Input Arguments

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XCP channel, specified as an XCP channel object created using xcpChannel. The XCP channel object can then communicate with the specified slave module defined by the A2L file.

Name of a single XCP measurement specified as a character vector or string. Make sure measurementName matches the corresponding measurement name defined in your A2L file.

Data Types: char | string

Number of samples to read, specified as a numeric value, for the specified measurement name. If number of samples in the measurement is less than the specified count, only the available number of samples are returned.

Output Arguments

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Value from the specified measurement, returned as a numeric array.

Introduced in R2013a

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