OPCPIPE_ITEM Struct Reference

Public Attributes
WMK_OPCPIPE_HANDLE	IdNetwork
	handle of other side of connection
WMK_OPCPIPE_HANDLE	IdApp
	handle of application
char *	Name
	topic or item
HANDLE_PAIR *	Handles
	in global topic fields the net handle array
W_UINT32	AvailHandles
	no of malloced elements
W_UINT32	UsedHandles
	no of used elements
W_UINT16	Flags
	special for was activated. Definitions above, values for OPCPIPE_ITEM::Flags and OPCPIPE_TOPIC::Flags and HANDLE_PAIR::Flags
W_UINT8	AccessRights
	values for PLC_OPCPIPE_BROWSEITEMDATA::Flags, bitcoded bitcoded
W_UINT8	DeleteTimer
	time counter for deleting items
W_UINT16	DataQuality
	actual quality, Quality values, conforming to OPC
W_UINT16	CreateError
	item create error, error values
W_UINT16	NetTyp
	data type, TYP_USE_xx from network
W_UINT16	NetTypFlags
	data type flags, TYP_FLAGS_xx from network
W_UINT16	AppTyp
	data type, TYP_USE_xx from application
W_UINT16	AppTypFlags
	data type flags, TYP_FLAGS_xx from application
WMK_OPCPIPE_HANDLE	RequestHandle
	for resending some requests (client: sync read handle; server: value change ack handle)
DATAVALUE	Data
	last data value; empty if bad quality
W_UINT32	ReadCount
	number of reads
W_UINT32	WriteCount
	number of writes
opcpipe_timeval	ReadTime
	last read time
void *	ApplicationData
	application use only
void *	NetworkData
	network (pipe/da/ua) layer use only
W_UINT32	CurrentReadInterval
	in units of 1ms; 0 is "use default"
double	DeadbandValue
	deadband value; 0 is "no deadband"
W_UINT16	NameLen
	strlen of name, used for optimisation while searching
W_UINT16	SearchTreeFlags
	flags for search tree
W_UINT32	SearchTreeLeft
	left child in search tree; 0 if child is leaf; also used as "next" pointer for freelist
W_UINT32	SearchTreeRight
	right child in search tree; 0 if child is leaf
W_UINT32	SearchTreeParent
	parent in search tree; 0 if this is the root
ACCESS_VALUES	Reserved

Detailed Description

Item structure.