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10.5 L_CanGetStatus − querying the driver status

System bus (CAN) for Lenze PLC devices

LenzeCanDrv.lib function library

10−6

PLC−Systembus EN 2.0

10.5 L_CanGetStatus − querying the driver status

Function

DWORD L_CanGetStatus (wDrvNr)

By means of this function the status of the CAN driver can be determined.

L_CanGetStatus

wDrvNr

Transfer parameters

Identifier Data type Possible settings Information

wDrvNr Word 10 System bus

Return value

Data type Bit Value Meaning Priority

Double Word 0, 1

0 CAN driver is Operational. −

1 CAN driver is not available or not initialised.

· In this case the bits 16 ... 31 are all set to "1" and therefore are invalid.

2 CAN driver is Pre−operational.

3 CAN driver is stopped.

Double Word

2...15 Reserved for future supplements (bits are set to "0").

16...31 Version of the CAN driver

Format: main version/subversion (e. g. 0103hex = version 1.03)

Example

Calling the function in ST:

g_dwCanDrvState:=L_Can_GetStatus(10);

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Lenze DDS System bus CAN for PLC Manual do Utilizador Página 148