Topcon OPUS A6G2 - Visual CAN Mapping

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OPUS Projektor Manual

CAN

The name of predefined variables e.g. @AlarmShow is not valid in DBC-Format. (the @

sign is a delimiter) so the prefix __AT__ is used instead (e.g. __AT__AlarmShow)

The Scale and Offset2 of variable mappings is used for setting Scale and Offset. (Offset1

will be exported as a user-defined attribute that won't be used in Vector)

The property values Min and Max of the mapped variable will be set as Min and Max. NOTE:

If the variable mapping does not use the whole length of the variable, the Min and Max value

is set appropriate to the mapped length. For constants the Const value is used for Min and

Max

Unit is currently not supported and will be always set to EMPTY_STRING

The owner will be always set to Vector__XXX (default owner)

FAQ

What about multiplexer messages?

The DBC format supports multiplexer messages, and our program supports them, as well.

For multiplexer messages to be recognized as that, messages that use the same CAN ID

(which is otherwise forbidden in Vector) need to have a identifiable multiplexer byte, i.e. a

constant in the same position in the mapping. Otherwise messages with the same CAN ID

cannot be exported.

If there are several constants in different positions, it cannot be detected which should be

used for the multiplexer byte, so the export will not work, as well.

5.6

Visual CAN Mapping

Visual CAN Mapping (VCM) is a graphical view for mapping objects. With Visual CAN

Mapping there is an easy and comfortable way to create or adjust mapped variables.

Via drag and drop it is easy to add/move or remove variables in the table. So it is possible to

update the mapping object very fast.

Overview

The Visual CAN Mapping view is divided in 3 views.

1. VCM Table: Here you can see all mapped variable and it is possible to add / move or

remove them by drag and drop.

2. VCM Toolbar: In the toolbar you can "Add", "Move Up", "Move Down" and "Delete"

variables. Within there is the possibility of a full search after variables and which will be

shown at the Variable Tree. In addition you can drag variables from Variable Tree to the

VCM Table.

3. VCM Configure Mapping Table: If variable is selected at the VCM Table, the

properties of the mapping will be shown here. The table is similar to the table at the tab

"Configure Mapping"