Panasonic FP OPC Server, Руководство пользователя

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4 Namespaces
The root elements in the tree are the channel elements, which embody the means of
communication, i.e. the communication line.
Server side Client side
Each channel element can contain device elements , which represent the devices where
the data sources are located. On the next level, tag groups combine elements in a way that
makes sense for the particular application. The leafs of the tree are the tag elements . These
elements directly represent the data sources offered to the OPC client application.
On the right, the namespace representation within the OPC client can be seen.
Note
You cannot use elements named COMXXNXX or ETHERNXXNXX (e.g. COM1N64)
in accordance with the regulations of
MEWTOCOL OPC server compatibility
namespace MEWTOCOL OPC Server compatibility namespace.
4.3 System Status Namespace
The system status namespace provides the client application with general feedback about
the server.
For a detailed description of the read only tags, please refer to the online help under the
keyword "System Status Namespace".
Note
The following tags are read only.
ACGM0143V4EN 75