CAPLfunctionVTSSetLoadMode

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CAPL Functions » VT System » SetLoadMode

SetLoadMode

Valid for: CANoe DE • CANoe:lite DE

Note: The function can only be called on system variable namespaces of channels belonging to the VT System module VT1004 or VT1104.

Method Syntax

long SysVarNamespace.SetLoadMode (eVTSLoadMode Mode);

Description

Switches the internal load to a specific mode.

Parameters

• Mode: Values see eVTSLoadMode

Return Values

• 0: Successful call
• -1: Call error
• -2: The namespace on which the command was called does not exist, is not a valid VT System namespace or does not support this command.
• -3: The specified mode is not valid.
• -4: The function wasn’t called in the context of the main method of a test module. So it is not possible to wait until the setting will be taken over from the VT system. Otherwise the call was successful but it is not sure if the settings have been taken over already when the call returns.

Example

The following example demonstrates the usage of the internal load of a VT1004 channel. In this example the channel is called LowBeamLeft. The internal load is configured for resistance-control-mode with a resistance of 120 Ohm. So the electronic load functions as a constant resistor against the input.

The second part of the example shows how to use the current control mode. Here the electronic load is regulated so that a constant current flows between the two ECU lines.

CAPL

InternalLoad_ResistanceControl ()
{
  // Set the resistor of the internal load to 120Ohm
  @sysvar::VTS::LowBeamLeft::IntLoadResistor = 120;

  // Set internal load mode to resistance control
  sysvar::VTS::LowBeamLeft.SetLoadMode(eVTSLoadModeResistanceControl);

  // Connect ECU with internal load
  @sysvar::VTS::LowBeamLeft::RelayIntLoadA = 1;
  @sysvar::VTS::LowBeamLeft::RelayIntLoadB = 1;
}

InternalLoad_CurrentControl ()
{
  // Set the current of the internal load to 1A
  @sysvar::VTS::LowBeamLeft::IntLoadCurrent = 1;

  // Set internal load mode to current control
  sysvar::VTS::LowBeamLeft.SetLoadMode(eVTSLoadModeResistanceControl);

  // Connect ECU with internal load
  @sysvar::VTS::LowBeamLeft::RelayIntLoadA = 1;
  @sysvar::VTS::LowBeamLeft::RelayIntLoadB = 1;
}

.NET (C#)

public void InternalLoad_ResistanceControl()
{
    // Get VTS interface and VT1004 channel
    IVTSystem vts = VTSystem.Instance;
    IVT1004Channel lowBeamLeft = vts.GetChannel("LowBeamLeft") as IVT1004Channel;

    // Set the resistor of the internal load to 120Ohm
    lowBeamLeft.IntLoadResistor.Value = 120.0;

    // Set internal load mode to resistance control
    lowBeamLeft.LoadMode.Value = LoadMode.ResistanceControl;

    // Connect ECU with internal load
    lowBeamLeft.RelayIntLoadA.Value = true;
    lowBeamLeft.RelayIntLoadB.Value = true;
}

public void InternalLoad_CurrentControl()
{
    // Get VTS interface and VT1004 channel
    IVTSystem vts = VTSystem.Instance;
    IVT1004Channel lowBeamLeft = vts.GetChannel("LowBeamLeft") as IVT1004Channel;

    // Set the current of the internal load to 1A
    lowBeamLeft.IntLoadCurrent.Value = 1.0;

    // Set internal load mode to current control
    lowBeamLeft.LoadMode.Value = LoadMode.CurrentControl;

    // Connect ECU with internal load
    lowBeamLeft.RelayIntLoadA.Value = true;
    lowBeamLeft.RelayIntLoadB.Value = true;
}

VT System Control

Select LowBeamLeft

• Configure resistance mode
  • Set Sidebar | Internal Load | Set Resistance to 120.0
  • Set Sidebar | Internal Load | Load Mode to Resistance
  • Set Schematic | RelayIntLoadA, RelayIntLoadB to closed
• Configure current mode
  • Set Sidebar | Internal Load | Set Current to 1.0
  • Set Sidebar | Internal Load | Load Mode to Current
  • Set Schematic | RelayIntLoadA, RelayIntLoadB to closed

vtsSetLoadMode