This applies to Perception only.
To enable logging for PIP, you will need to apply the setting in the Server Setting page in Enterprise Manager. To enable PIP logging place, select the PIP log files setting and click Save and Exit.
If this is set, and logging isn't disabled, then a pip.log file will be created in your logs directory giving detailed information about PIP calls. This log file is very useful in troubleshooting, and we strongly recommend you make this setting while developing your PIP application. You can turn it off once your application is proven.