VPNState (FB)

FUNCTION_BLOCK VPNState EXTENDS AbbETrigAsync

Provide state and statisctics regarding VPN tunnel

InOut:

Scope

Name

Type

Initial

Comment

Inherited from

Input

Execute

BOOL

FALSE

A rising edge starts a single operation, the output Busy goes to TRUE. In the first cycle all other inputs are read and stored, afterwards they are ignored. A falling edge does not stop the operation. After Done = TRUE or Error = TRUE and Execute = FALSE all outputs will be reset. For executing another operation the Execute input needs to be retriggered by another rising edge!

AbbETrig3

Output

Done

BOOL

FALSE

Operation is completed without error (while outputs Busy and Error are FALSE). This output is TRUE for at least one cycle or until Execute is set to FALSE

AbbETrig3

Busy

BOOL

FALSE

Operation is running (while outputs Done and Error are FALSE)

AbbETrig3

Error

BOOL

FALSE

Operation is stopped with error (while outputs Busy and Done are FALSE). This output is TRUE for at least one cycle or until Execute is set to FALSE. The output ErrorID gives more details about the error.

AbbETrig3

ErrorID

ERROR_ID

ERROR_ID.NO_ERROR

Active

BOOL

Error code that describes the occured error

TX_Bytes

UDINT

TRUE if VPN is enabled

RX_Bytes

UDINT

Number of bytes transmitted via VPN