RSLinx Classic for Rockwell Automation Networks and Devices is a comprehensive factory communication solution, providing Allen Bradley programmable controller access to a wide variety of Rockwell Software and Allen-Bradley applications. We use tablet for SCADA display. In the robot simulation phase, we should observe when the blocks in the ladder diagrams in the PLC software are triggered. This allows the software to be corrected if there are any problems or inaccuracies in the PLC software. It allows us to see the communication network of PLC and SCADA.