Specifications

16 Softing
16-10
The second and third dialogue-field allows to choose the baudrate of CAN-port
1. If the baudrate within the popup menu is not set to "user defined" the entries
in the "user-defined" dialogue-field have no meaning. If it is set to "user
defined" a wide range of baudrates can be set by setting Prescaler, Width,
Tseg1, Tseg2 to appropriate values. Contact the CAN-AC2 manual for detailed
information how to set "user defined" baudrates.
With the fourth and fifth dialogue-field the baudrate for CAN-port 2 can be set.
The last 4 dialogue-entries are used to define the Identifiers of all
CAN-messages sent or received within the current SIMULINK-model. There is
one dialogue-field for send- and receive-identifiers for CAN-port 1 and 2. Each
entry can contain a row vector with a maximal number of 200 identifiers. Each
identifier can be in the range of -2032..(2^29-1). Because CAN-specification
2.0B allows to send and receive messages with standard (11bit) and extended
identifiers (29bit) concurrently the following identifier numbering method has
been implemented:
•Positive numbers specify extended identifiers and can therefore be in the
range from 0..2^29-1
•Negative numbers specify standard identifiers. Because the number zero is
reserved for the extended identifier 0 the standard identifier 0 has the
number -1 and the standard identifier 1 the number -2 and so on. Therefore
the standard identifier range 0 to 2031 is mapped to the range
-1..-2032.