Runtime event configuration
- Last UpdatedFeb 13, 2023
- 1 minute read
- PI System
- PI Interface for SNMP 1.7.0.37
- Interfaces
The ExDesc attribute configures a variety of runtime settings, two of which are included in every interface and are described below.
Note: Keywords shown below must be specified in upper case.
Performance points
For UniInt-based interfaces, the extended descriptor is checked for the string PERFORMANCE_POINT. If this character string is found, UniInt treats this point as a performance point.
TRIG or EVENT input points
For UniInt-based interfaces, the extended descriptor is checked for the strings TRIG or EVENT. If either character string is found, UniInt treats this point as an event driven input point.
|
Keyword |
Description |
Example |
|---|---|---|
|
PERFORMANCE_POINT |
When set, such point stores the amount of time, in seconds, that it takes an interface to complete a scan for a particular scan class. The lower the scan time, the better the performance. |
PERFORMANCE_POINT For details, refer to the PI Universal Interface (UniInt) User Guide. |
|
TRIG or EVENT |
For event-driven input points. Valid conditions:
|
/EVENT = sinusoid, … or /EVENT = sinusoid anychange, … |