4 Connect Power supply to Safety Controller. As shown in the figure on the right, connect Built-in EtherNet/IP ports Safety Controller (PORT1 and PORT2A) to Personal computer and Port 2 Personal computer of Robot Controller with LAN cables, respectively. LAN cable Robot Controller *For details on power supply connection for Safety Controller, refer to Section 5 Installation and Wiring of the NX-series Safety Control Unit/ Communication Control Unit User's Manual (Cat. No. Z395). Power supply LAN cable 13