IFM Electronic CR0451 - Processing of the Program Pous; Can_Enable

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ifm System Manual ecomatmobile BasicDisplay (CR0451) V01
CAN in the PDM360 CAN-FBs on layer 2 (RAW-CAN)
CAN_ENABLE
7492
Unit type = function block (FB)
Contained in the library: ifm_RawCAN_NT_Vxxyyzz.LIB
Available for the following devices:
- BasicController: CR040n
- BasicDisplay: CR0451
- PDM360NG: CR108n
Symbol in CoDeSys:
CAN_ENABLE
ENABLE
RESULT
CHANNEL
BAUDRATE
Description
7494
With CAN_ENABLE the CAN hardware is initialised. Without this call no other calls are possible in
RAW-CAN or they return an error.
In order to change the baud rate the following procedure is required:
► Maintain the function block on ENABLE=FALSE for the duration of one cycle.
> All protocols are reset.
> Re-initialisation of the CAN interface and the CAN protocols running on it. Any information
available for cyclical transmission is lost as well and must be newly created.
> At renewed ENABLE=TRUE, the new baud rate is adopted.
Parameters of the inputs
7495
Parameter Data type Description
ENABLE BOOL
FALSETRUE (edge):
interface is initialised
TRUE: interface is aktive
FALSE: this function is not executed
CHANNEL BYTE CAN interface (1...n) depending on the device
BAUDRATE WORD Baud rate [kBit/s]
Permissible values = 20, 50, 100, 125, 250, 500, 800, 1 000
preset = 250