VehicleScape DAQ: Channels Tab

The VehicleScape DAQ Channels Tab is where signals are selected to be logged. Note that the term "channel", as used in VehicleScape DAQ, is equivalent to the term "signal" used elsewhere in Vehicle Spy.

The Channels Tab is split into a left side and right side, as shown in Figure 1.

Channels List

Use the area on the left side of the screen to search for and select signals from a list (Figure 1:). The list is a compilation of signals from various sources, including the platform, ECU diagnostics, Messages Editor, MEP A2L file data items, and application signals.

The signal list can be filtered by entering text into the search field (Figure 1:) or by clicking the diagnostics button (Figure 1:) and selecting a diagnostic category in the network/ECU tree. Multiple items can be highlighted by Ctrl+clicking individual entries or Shift+clicking to highlight a group. Then use the Selected >> button to select a set of highlighted signals, or All >> to select all signals.

The Paste List button (Figure 1:) can speed up signal selection when working with a huge list of signals. First, copy to the clipboard a list of line-delimited signal names from any source, such as a column in a spreadsheet. Next, click the Paste List button and Vehicle Spy will attempt to select all signals that match the clipboard entries. Specific problem logs will indicate any signals for which Vehicle Spy could not find a match.

Polling Setup

Found in the upper right part of the screen (Figure 1:), polling setup rates apply only to ISO 14229 Identifier and Memory Data signals. The polling rates do not affect MEP A2L file data items because those items use their own MEP DAQ Delay times.

The Set Export Order button (Figure 1:) defines the ordering of signals in CSV and MAT signal export files. If GMLAN is enabled under OEM Specific Features, then items from GM CAL files can be loaded by clicking CAL File... (Figure 1:).

Selected Channels For Test

The main area on the right side of this tab (Figure 1:) displays the signals that have been selected to be logged. If the signal is a PID or MEP A2L file data item, its priority (how often it gets requested) can be changed to high, normal or low by double-clicking on it.

Use the Clear button at the bottom of this area (Figure 1:) to clear the entire list, or the Remove button to remove signals one at a time.

NOTE: There is no undo for the Clear or Remove buttons. Copying the selection to a text editor before clearing or removing may save re-entering previous deleted signals.

Right-clicking in the Selected Channels for Test area will bring up a right-click context menu with a number of helpful commands (Figure 2). These options are explained in Table 1; some are also available on the Online Tab.

Table 1: Selected Channels Right-Click Context Menu Commands and Options

Menu Selection

Description