Properties

This item is uses to configure StreamFunction (SF) to spool. Default value is false ()

The Spool Config Item item type has the following properties:

NameDescriptionIDFlags
ItemHandle

The handle of the item - this is the unique ID for the item. This property is often hidden.

10001ExpertPage
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.

3ReadOnly
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.

5ReadOnly
SpoolFunctionAttribute

The function number. Any value below -1 is not valid.

10750Persisted
SpoolStream

The stream number (Default=-1). Spooling allows equipment to queue messages intended for the host. This happens during times of communication failure, and then delivers these messages when communication is restored. Spooling is limited to primary messages of user-selected streams.

Primary Message - an MSMS Data Message With an odd number function. Also, the first message of an data transaction.

10700Persisted
Time

The date and time when this item was last updated.

4ReadOnly
Type

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

1ReadOnly
Value

The current value of the item.

2NormalPage

See also

Basic Item Properties

Predefined Item Properties

OPC DA Properties