How to manage errors with reader or writer component ?

Hello,

I am abeginner with FME.

I created a workplace test with a reader component PostgreSQL, a transformer component et a CSV Writer component.

All it's works.

I would like catch errors if there is un problem with de connexion to database or to write the csv file in a log file or send mail but there isn't a connection error like Talend to catch errors.

How can I catch errors with writer or reader component?

Thanks for your help