Bosch C 70 - CAN Bus Communication

12 | CAN Bus
62/112 Data Logger C 70 Manual Bosch Motorsport
12 CAN Bus
The C 70 has four fully configurable CAN buses. Two of these are available as an upgrade.
– Baudrate (250 kbaud , 500 kbaud, 1 Mbaud)
– 11 Bit or 29 Bit identifiers
– Input configuration: Read messages from CAN bus and convert to C 70 measure-
ment/display variables. CAN bus supports row counter configuration.
– Output configuration: Write RaceCon measurement variables to CAN messages, out-
put frequency and row counter are configurable, CAN gateway functionality (transfer
from one bus to another).
12.1 CAN bus trivia
CAN message
– 11 Bit (standard) or 29 Bit (extended) identifier
– Up to 8 bytes of data payload
CAN bus
– Needs termination resistors (60 Ohm) in wiring harness
– All devices connected to the bus, must use identical data rate
– Configuration of bus data rate in the ‘CAN messages overview’ menu. To access the
menu, double-click on one of the CAN bus items of the project tree (1 MBaud, 500
kBaud, 250 kBaud).
CAN item drop-down menu
Click with the right mouse button on the desired CAN bus to open the CAN bus drop-
down menu.