Properties
Reference to an element or attribute in the received XML document. The syntax for accessing element or attribute field in an XML node is by XPath
The XmlItem item type has the following properties:
| Name | Description | ID | Flags |
|---|---|---|---|
| ItemHandle | The handle of the item - this is the unique ID for the item. This property is often hidden. | 10002 | Persisted |
| ItemType | Decides which type (e.g. Double, String, Bool) the item is to be. (Bool=10, Double=20, String=30) | 10005 | Persisted, Enumerated |
| Quality | Item quality - this tells you whether an item currently has a good or bad quality. It might be bad, for example, because it isn't connected or is set to the wrong type. | 3 | ReadOnly |
| Rights | Item access rights - this property may be "read", or "read write". This means that the property may only be read from, or also can be written to. For OPC items, this written value will be passed on to the external items this item comes from. | 5 | ReadOnly |
| Time | The date and time when this item was last updated. | 4 | ReadOnly |
| Type | The item canonical data type - the specific type of this item. Whether it's an integer, string, date, etc. | 1 | ReadOnly |
| Value | The current value of the item. | 2 | NormalPage |
| XPath | The XPath syntax is used to access the element or attribute in the recevied XML document. | 10004 | Persisted |