# Checking the Application in TIA Portal

Check the application in TIA Portal as follows to make sure it writes data to the PLC A Programmable Logic Controller is a ruggedized computer that you can use for automating processes or even an entire production line. properly:

1. Place the vision system online. Trigger the vision system by setting the Trigger Enable bit, and verifying the Trigger Ready bit returns high. Then, set the Trigger bit, and verify that the Trigger Ack bit returns high.

2. The value of the In-Sight 3D EasyBuilder tool now shows up in the Inspection Results tag.

3. Make sure to click the Modify all selected values once and now icon each time the value is modified.