RobotStudio event

What equipment to build conveyor tracking

Options
Hello , I have a robot IRC 120. NowI want to build a conveyor tracking, 
There are require i think:
1.Option multi task and conveyor tracking
2. Encoder
3. Sync switch
4. Encoder unit DSQC 377A 
5. Conveyor

But I don't know is it enough to do ?
Please help  me , thank