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.

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.

The date and time when this item was last updated.

The item canonical data type - the specific type of this item. Whether it's an integer, string, date, etc.

The current value of the item.