5 l_cangetstatus - querying the driver status, 5 l_cangetstatus − querying the driver status, System bus (can) for lenze plc devices – Lenze DDS System bus CAN for PLC User Manual
Page 148: Lenzecandrv.lib function library
10.5
L_CanGetStatus − querying the driver status
System bus (CAN) for Lenze PLC devices
LenzeCanDrv.lib function library
10−6
L
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);