Read Item Properties
Item type for reading scalar, vector and matrix values from the database.
The Read item item type has the following properties:
| Name | Description | ID | Flags |
|---|---|---|---|
| InitValueEnabled | Whether this item has an initial value on start up of Apis Hive. If enabled, this allows for the setting of a value so the initial value isn't blank or null on each restart. | Persisted | |
| Item type | A field indicating what type of item this is. This is always set to "Read item" for Read Items. | ReadOnly | |
| Name | The name of this item. This is independent of the name of the item from SQL server (see the SrcItemID property). | Persisted | |
| Quality | Item quality. This indicates the current quality of the signal from SQL Server. The quality may be "Good" meaning the field is being read correctly, "Bad:Connect error" meaning that there's a problem with the database location or security properties on the module, or "Bad:Config error" meaning there's another problem with the connection to the database, or the field is not found in the database results. | 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 |
| SrcItemID | The item ID in the source. This is the item ID this item uses to fetch data from the source. | 5030 | Persisted |
| 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 | ReadOnly |
| Valuetype | Item canonical datatype. The type of value this field contains. For example, string, int, datetime, etc. | 10031 | Persisted, Enumerated |