Campbell Hausfeld SDM-CAN Manual Do Utilizador

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

Public Flag(8)                       'General Purpose Flags 
Dim TRef(1)                          'Declare Reference Temp variable 

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

BeginProg                            'Program begins here 

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

'__________________________ Temp Blocks __________________________ 

ModuleTemp(TRef(),1,5,100) 
TCSE(TBlk1(),TREP1,TRNG1,5,1,TTYPE1,TRef(1), 
TSETL1,TINT1,TMULT1,TOSET1) 

'__________________________ CAN Blocks __________________________ 

'When Flag 1 is high set SDM-CAN switches to transmit mode 

If Flag(1) Then 

'Load variable with value for switches 

Switches = 3 

'Send switch settings to SDM-CAN 

CanBus(Switches,ADDR1,TQUANT,TSEG1,TSEG2,0, 
DTYPE1,STBIT1,NBITS1,NVALS1,CMULT1,COSET1) 

'Set flag 1 low after sending switch settings 

Flag(1) = False 

EndIf 
 

'Transmit Data on to CAN network 

CanBus(TBlk1(),ADDR2,TQUANT,TSEG1,TSEG2,1, 
DTYPE2,STBIT2,NBITS2,NVALS2,CMULT2,COSET2) 

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

 

The default setting for the SDM-CAN internal software switches is 
0. The switches must be set by using the data type 32 parameter to 
enable data transmission. Also remember to check the jumper 
settings inside the SDM-CAN if enabling transmission, as the 
default setting is for transmission to be disabled in hardware. 

Although the CR5000 and CR9000 do not have the interrupt feature that is 
available on the CR10X, CR7 and CR23X it is possible to connect the I/O line 
from the SDM-CAN to a Digital I/O port. A program control instruction can then 
be used to trigger the retrieval of new CAN data from the SDM-CAN when the 
port is high. An example of this is shown below 

'Set scan rate 

Const PERIOD = 1                     'Scan interval number 
Const P_UNITS = 2                    'Scan interval units (Secs)