The following table lists the MAX Technologies' modules and devices supporting CAN bus interface and the associated MX Foundation constant values. These MX Foundation constants are used by mxfDeviceModuleAllGet() to identify the CAN bus interface available on a device.

Module model name	Module MXF constant
CAN bus	MXF_MODULE_CANBUS
FlexMAX SMP	MXF_MODULE_FLEXSMP

The following table lists, for each device that supports CAN, the number of buses, module index position for mxfDeviceModuleGet() and channel position for mxfModuleChannelGet().

Device/Module Type	CAN buses	CAN Module Index	Note
FlexMulti 664 FlexMulti 429	2	12	Channel 0 is bidirectional port for CAN 0, Channel 1 is bidirectional port for CAN 1.
FlexMulti with C2 option	2	12	Channel 0 is bidirectional port for CAN 0, Channel 1 is bidirectional port for CAN 1.
FMX-SMP-12	2	Depends on slot position of the chassis	Channel 20 is bidirectional port for CAN 0, Channel 21 is bidirectional port for CAN 1.
FMX-SMP-16	2	Depends on slot position of the chassis	Channel 28 is bidirectional port for CAN 0, Channel 29 is bidirectional port for CAN 1.