Summary of the OPC Classic HDA collector Features
The OPC Classic HDA collector is a 64-bit compatible collector and it does not support 32-bit operating systems. The following table outlines the features of the OPC Classic HDA collector.
| Feature | Capability |
|---|---|
| Browse Source for Tags | Yes (on an OPC Classic HDA server that supports browsing) |
| Browse Source for Tag Attributes | Yes |
| Polled Collection | No |
| Minimum Poll Interval | NA |
| Unsolicited Collection | Yes If you are using an OPC Classic HDA collector with unsolicited data collection and have collector compression disabled, all new values should produce an exception. When the OPC Classic HDA collector is doing unsolicited collection, the deadband percentage is determined by the collector deadband percent. You can only configure the collector deadband percent by enabling compression. |
| Timestamp Resolution | 1ms |
| Accept Device Timestamps | Yes |
| Floating Point Data | Yes |
| Integer Data | Yes |
| String Data | Yes |
| Binary Data | Yes |
| Python Expression Tags | No |
Note: You must set the Time Assigned by field to Source if you have unsolicited tags getting data from an OPC Classic HDA
collector.