Properties
A Trace Data Collection item's main purpose is to be used for logging. For that purpose the capability Trace Collection will be used
The Trace Data Collection item type has the following properties:
| Name | Description | ID | Flags |
|---|---|---|---|
| DSPER | Data sample period [ms]. | 10030 | Persisted |
| ItemHandle | The handle of the item - this is the unique ID for the item. This property is often hidden. | 10001 | ExpertPage |
| 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 |
| REPGSZ | Report group size (read only). | 10060 | Persisted, Hidden |
| 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 |
| TOTSMP | The total number of samples (read only). | 10050 | Persisted, Hidden |
| TRID | The trace ID is auto-generated by the module (read only). | 10040 | Persisted |
| 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 |
| ValueAsDate | Can be enabled if the SECS variable is a SECS time (ASCII 12 or 16 ) should be interpreted as DateTime (Default: false). | 10003 | Persisted |
| VID | Variable ID. It must be larger or equal to 0 to be valid. | 10010 | Persisted |