Lenze DDS System bus CAN for PLC Manual do Utilizador descarregar pdf (Página 146)

10.3 L_CanInit − initialising the CAN driver

System bus (CAN) for Lenze PLC devices

LenzeCanDrv.lib function library

10−4

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);

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Lenze DDS System bus CAN for PLC Manual do Utilizador Página 146