IFM Electronic CR0451 - Page 94

94
ifm System Manual ecomatmobile BasicDisplay (CR0451) V01
CAN in the PDM360 CAN-FBs on layer 2 (RAW-CAN)
CAN_TX_ENH
7558
= CAN TX enhanced
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_TX_ENH
ENABLE
RESULT
CHANNEL
ID
Extended
DataLengthCode
DATA
Description
7559
Additional setting options are offered through CAN_TX_ENH (for: enhanced). Here, all CAN specific
characteristics can be set individually, e.g.:
 Is it an 11 or a 29 bit identifier?
 The additional inputs can be preset so that CAN_TX (→ page 92
) is not required.
> If an instance of this FB is called several times during a cycle, the data is also sent several times.
Parameters of the inputs
7634
Parameter Data type Description
ENABLE BOOL TRUE: unit is executed
FALSE: unit is not executed
> POU inputs and outputs are not active
CHANNEL BYTE CAN interface (1...n) depending on the device
ID DWORD number of the data object identifier:
normal frame: 0...2 047 (2
11
)
extended frame: 0...536 870 912 (2
29
)
Extended
(optional use of the parameter)
BOOL TRUE: extended frame
FALSE: normal frame
(preset for ID < 2 048)
DATALENGTHCODE BYTE number of the data bytes to be sent (0...8)
DATA ARRAY [0...7] OF BYTE data to be sent (1...8 bytes)