Lenze DDS System bus CAN for PLC - Manual (Page 146)

10.3 L_CanInit − initialising the CAN driver
System bus (CAN) for Lenze PLC devices
LenzeCanDrv.lib function library
10−4
L
PLC−Systembus EN 2.0
Response with regard to errors (Tx/Rx buffer)
The response in the case of errors in the Tx/Rx buffer can be configured via the codes C0608/C0609:
Code LCD Possible settings Information
Lenze Selection
C0608 over Tx−Queue 0 0 TRIP
1 Message
2 Warning
3 Off
4 FAIL QSP (not for Drive PLC!)
Configuration of the monitoring for
Tx buffer
C0609 over Rx−lsr 0 0 TRIP
4 Fail−QSP
Configuration of the monitoring for
Rx buffer
·
Not for Drive PLC!
Example
Calling the function in ST with decoding of the return value:
(* open CAN driver − returns g_dwReturnValue *)
g_dwReturnValue:= L_CanInit(10, 0);
g_bInitOK := NOT DWORD_TO_BOOL(g_dwReturnValue AND 16#0000_0001);
g_bDriverFail := DWORD_TO_BOOL(SHR(g_dwReturnValue,1) AND 16#0000_0001);
g_wVersion := DWORD_TO_WORD(SHR(g_dwReturnValue,16) AND 16#FFFF);