See also: I/O Transactions in the Xentara user manual; Tasks in the Xentara user manual

The memory area element is responsible for managing the read/write operations of its corresponding data points.

Accessing Memory Area Elements

See also: Accessing Xentara Elements in the Xentara user manual

Memory area elements have the following members:

Attributes

key	The memory area’s primary key.
name	The memory area’s name. The name is the last component of the primary key.
UUID	The unique UUID of the memory area.
type	The memory area’s element type. For cifX memory areas, this is always “cifX memory area”.
category	The memory area’s category. For cifX memory areas, this is always “transaction”.
quality	The quality of the current input memory image. This attribute is not available if there is no readable data points located in the memory area.
error	The last input memory image read error. This attribute is not available if there is no readable data points located in the memory area.
updateTime	The last time the input memory image was updated. This attribute is not available if there is no readable data points located in the memory area.
writeError	The last output memory image write error. This attribute is not available if there is no writable data points located in the memory area.
writeTime	The last time the output memory image was written. This attribute is not available if there is no writable data points located in the memory area.

Memory area elements provide the following tasks that should be scheduled to perform the desired operations.

Tasks

read	Updates the memory area input image.
write	Writes the memory area output image.

Memory Area Name Format

Since the memory area elements are generated automatically as the children of channels, their names (i.e. the last component of their primary keys) are assigned based on a predefined format. Each name consists of the string "Memory Area" followed by the memory area number, separated by a space. For example, the memory area element with the memory area number 0 would be named as "Memory Area 0".