Logger
A logger object records data and stores it in a database.
This section includes
- Data loggers, including adding, duplicating, editing, deleting, deadband configuration, read operation codes, and timestamps.
- Event loggers, including adding, editing, deleting, and recording event properties.
- Audit logging of runtime operations.
- Displaying logged data in tables.
FactoryTalk Optix
offers two types of loggers:
- Data logger. Samples values of one or more variables at regular time intervals or on demand. The deadband properties for a data logger allow you to sample variables with respect to the previous sampled value of the variable. You configure the logger to store operation codes in the database when the controller is read.
- Event logger. Records the properties of one or more event types generated by either:
- A specific node and/or its child nodes
- Any node in the project
Data logger and event logger data appears in tables.
For an events audit log, you can record the operations that users perform at runtime. Use this data to perform quality checks or to certify applications. An event logger can record operations that include:
- Write on variables
- Edit node attributes
- Create and delete nodes
- Execute methods
- Login and logout
database
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