MoTeC ESDL3 - Manual (Page 14)

10 Installation
Communications
Communications are used to send and receive data from one device to
another. There are two communication protocols: RS232 and CAN. Generally
older devices use RS232 and newer devices use CAN.
CAN (Controller Area Network) Communications
This protocol enables communication between all devices connected to the
same bus. The CAN bus allows for communicating at high speeds. The Dash
Logger has two independent CAN communications ports that can be
connected to other devices with a compatible CAN port. The bus speed for
each interface can be set independently.
Typical devices communicating over CAN:
o
'Hundred series' ECU: M400, M600, M800, M880
o
Shift Light Module: SLM
o
Lambda meters: LTC, PLM
o
Expanders and input modules: E888
o
Displays: SDL
o
Beacon receiver: BR2
These devices communicate at 1 Mbit/sec, so any other devices connected
on the CAN bus must also communicate at 1 Mbit/sec. If a device
communicates at another speed, it should be wired to the other CAN bus, and
the speed of that CAN bus must be set to match the speed of the device.
RS232 Serial Communications
This is a one to one protocol, communicating from one device to one other
device. Typical devices communicating over RS232:
o
M4, M48 ECUs
o
Radio telemetry device
o
Gobal positioning system: GPS
Note:
The Dash Logger can only communicate with devices for which it has
the appropriate communications protocol defined.