Campbell Hausfeld SDM-CAN Manual Do Utilizador

 

'\\\\\\\\\\\\\\\\\\ ALIASES & OTHER VARIABLES ////////////////// 

Alias CANBlk1(1) = Accel_Pedal    'Assign an alias name to CANBlk2(1)  

'\\\\\\\\\\\\\\\\\\\\\\\\\\\ PROGRAM /////////////////////////// 

BeginProg                           'Program begins here 

   'MainSequence 

   Scan(PERIOD,P_UNITS,0,0)         'Scan once every 1 Secs, non-burst 

'__________________________ CAN Blocks __________________________ 

'Retrieve Accelerator pedal position Data from CAN network  

CanBus(CANBlk1(),ADDRESS1,TQUANTA,TSEG1,TSEG2,217056000, 
DATATYPE1,STARTBIT1,NUMBITS1,NUMVALS1,0.4,0) 

    

   Next Scan                        'Loop up for the next scan 
EndProg                             'Program ends here

 

Due to current system constraints the ID parameter must be entered 
directly into the CanBus instruction. 

The following example shows how to encode the identifier field values into the 
format for the CR23X/CR10X ID parameter. 

The identifier field values for the CAN Data Frame are as follows: 

Priority  

3

10

Reserved  

0

10

Data Page 

0

10

PDU Format 

240

10

PDU Specific 

3

10

Source Address  0

10

These decimal values then need to be converted to binary and encoded into the 29 
bit identifier

. 

Priority  

011

2

Reserved  

0

2

Data Page 

0

2

PDU Format 

11110000

2

PDU Specific 

00000011

2

Source Address  00000000

2