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RACELOGIC Support Centre

04 - ADC Connection to VBOX

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Configuration of ADC03 and its individual channels can be done through the connected VBOX using VBOX Tools Software.
 

When a module is connected to a VBOX, it will be automatically recognised and a tab for the module will appear in VBOX setup section of the VBOX Tools Software.

Connection of ADC03 to VBOX 3i

Using the 5 way LEMO to 5 Way LEMO cable (RLCAB005, RLCAB005-C or RLCAB006) connect the VCI bus of the VBOX to socket 2 on ADC03.
 

Power the VBOX using either the mains adaptor or a fully charged battery pack. Connect the SER port (RS232) of the VBOX to a PC using an RLCAB001 or USB connection. 
 

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Once ADC03 is connected to VBOX Tools, the configuration of its individual channels can be done through the VBOX Setup window.
 

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The bandwidth status bar shows the available logging bandwidth. When the status bar is full, all of the bandwidth is used. If more logging channels are added beyond this, there is a risk data will be lost. 
 

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Clicking on a channel button opens up a channel set up allowing the user to set the channel name, the units of measurement, the scale and the offset. Once a channel is configured, the settings are stored within the associated module. Also displayed in the channel set up is a real-time view of the data on that channel. The data shown is the scaled and offset value so if for example an ADC03 input channel is connected to a pressure sensor and scale and offset are calibrated for PSI then the live data value will show a reading in PSI.
 

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Name allows the user to enter a meaningful channel name that corresponds to the input. For example ‘Pressure_1’ if the channel is connected to a pressure sensor.

Units is a description of the measurement units. Type the name of the measurement units (eg;PSI) in this box.

Scale contains the value by which the input data is multiplied.

Offset defines the offset of the multiplied data. Because the offset is applied after scaling (y=mx+c) the offset value must be entered corresponding to the SI units.

Using scale and offset it is possible to calibrate an SI unit output for most linear output sensors. This follows the rule y=mx+cwhere y=the output value, x is the input value, m is the multiplier (Scale) and c is the constant (offset).

Click here to use our scale and offset calculator.

As the ADC03 is a voltage input module, a scale of 1.00 and offset of 0.00 will return a value in volts.

Live Data is a real-time representation of the input signal for the current channel. This value is constantly updated while the channel set up window is displayed and can be used as a reference to ensure correct channel operation. The value displayed is the value after scale and offset is applied. Again, in the case of ADC03, scale=1 offset=0 will show a live data value in volts corresponding to the relevant input pins on the ADC03. When a change is made to either the scale or offset values, click “Apply” to update the module settings. This will cause the Live Data to be show with the new scale and offset taken into account.

Viewing Live Serial Data

In addition to the data that is logged by the VBOX, there is a serial data stream that is transmitted to the PC. This serial data stream can be configured to include data from any connected input module. Once a channel has been ticked to be sent over serial (within VBOX Setup), then it is selectable to view within VBOX Tools, as a live view window.
 

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