Properties
A Performance Counter describes a measurable property of a machine, remote or local, such as CPU load.
The Performance Counter item type has the following properties:
| Name | Description | ID | Flags |
|---|---|---|---|
| Performance Counter Category | The category that the Performance Counter belongs in. | 10001 | Persisted |
| Performance Counter Instance | Instance name for the Performance Counter, when it is necessary to distinguish between them. Left blank for single-instance counters. | 10002 | Persisted |
| Performance Counter Name | The name given to the Performance Counter within its category. | 10003 | Persisted |
| Performance Counter Sample Exposure | The aspect of the Performance Counter to expose. Default means to expose the appropriate value depending on the counter type. RawValue exposes the CounterSample.RawValue Int64 Property of the counter. Calculated exposes the 4 byte floating point value resulting from the CounterSample.Calculate Method of the counter. | 10004 | Persisted |
| Description | A description of what this item does. This is free text, so you can write anything you like here. | 101 | Persisted |
| Inputs | The item handle (unique identifier) of the inputs. | 5510 | Persisted, ApisLocalItem, 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 |
| 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 | ReadOnly |