Possible values for the accesslevel attribute of variable nodes. More...

Macros
#define	UA_ACCESSLEVEL_NONE 0x0
	The Variable value cannot be accessed and has no event history. More...

#define	UA_ACCESSLEVEL_CURRENTREAD 0x1
	The current value of the Variable may be read. More...

#define	UA_ACCESSLEVEL_CURRENTWRITE 0x2
	The current value of the Variable may be written. More...

#define	UA_ACCESSLEVEL_CURRENTREADWRITE 0x3
	The current value of the Variable may be read and written. More...

#define	UA_ACCESSLEVEL_HISTORYREAD 0x4
	The history for the Variable may be read. More...

#define	UA_ACCESSLEVEL_HISTORYWRITE 0x8
	The history for the Variable may be updated. More...

#define	UA_ACCESSLEVEL_HISTORYREADWRITE 0xC
	The history value of the Variable may be read and updated. More...

#define	UA_ACCESSLEVEL_SEMANTICCHANGE 0x10
	The variable generates SemanticChangeEvents.

#define	UA_ACCESSLEVEL_STATUSWRITE 0x20
	The variable value StatusCode is writable.

#define	UA_ACCESSLEVEL_TIMESTAMPWRITE 0x40
	The variable value SourceTimestamp is writable.

Detailed Description

Possible values for the accesslevel attribute of variable nodes.

Multiple accesslevels can be combined using the bitwise OR operator.

Macro Definition Documentation

#define UA_ACCESSLEVEL_CURRENTREAD 0x1

The current value of the Variable may be read.

#define UA_ACCESSLEVEL_CURRENTREADWRITE 0x3

The current value of the Variable may be read and written.

#define UA_ACCESSLEVEL_CURRENTWRITE 0x2

The current value of the Variable may be written.

#define UA_ACCESSLEVEL_HISTORYREAD 0x4

The history for the Variable may be read.

#define UA_ACCESSLEVEL_HISTORYREADWRITE 0xC

The history value of the Variable may be read and updated.

#define UA_ACCESSLEVEL_HISTORYWRITE 0x8

The history for the Variable may be updated.

#define UA_ACCESSLEVEL_NONE 0x0

The Variable value cannot be accessed and has no event history.