Function Description

The function block UA_Disconnect is used to close a transport connection of an OPC UA session.

Representation in FBD

Parameter Description

Input parameters:

Name

Type

Comment

EXECUTE

BOOL

On rising edge connection is terminated.

CONNECTIONHDL

DWORD

Connection handle of connection to be closed.

TIMEOUT

TIME

Maximum time to close the connection.

Output parameters:

Name

Type

Comment

DONE

BOOL

FB has completed its task.

BUSY

BOOL

The FB is not finished and new output values are to be expected.

ERROR

BOOL

Signals that an error has occurred within the FB.

ERRORID

DWORD

Error code.

Runtime Error

Refer to the Appendix for a list of OPC UA detected error codes.