Communication of plc to pc Begin by executing the All Programs - Rockwell Software - RSLinx - RSLinx Classic utility. If the RSLinx software is executing, the icon should be present in the system tray. The RsLinx software must be running to communicate with the PLCs on the network. With the PLC running, opening this software should show the state of the PLC in a window The Allen Bradley RsLinx Ethernet devices driver is not plug and play like the Ethernet/IP driver. You must configure the IP Addresses you wish RsLinx to look for devices on. 1. From your menu at the top of RsLinx go to Communications - Configure Drivers… 2. "Available Drive Type†select “Ethernet Devices†and click “Add New.†The default name for the device is “AB_ETH-1.†If you wish to change it you may do so now and click “OK 3. Now you will see the “Station Mapping dialog come up. 4. Enter the IP Address of your device and click “OK†4. From you menu at the top of RsLinx go to Communications -RsWho. Look at the pane to the left, find your “ABETH-1†driver, and select it. In a few moments you should now see your device in the right pane. The communication parameters have already been setup for communication between the PC and the PLC. This was done within RSLinx by first selecting a driver (Communications-Configure Driver). This was done by selecting the EtherNet/IP Driver as the driver type and then selecting the driver name as AB_ETHIP-1 (the default). The IP addresses for the four PLC trainers in the lab are given in Table 1. Note these IP addresses are dynamically assigned and may possibly change. The specific IP address assigned to a PLC on the network can be checked on the PLC itself. On the MicroLogix 1100 PLC, press the front panel ESC button and then press the down arrow key until the Advance Set function is selected. Press OK and press the down arrow key until the ENET Cfg function is selected. Press OK to show the current IP address for the PLC. Press ESC until the I/O Status function is selected. Press OK to return to the I/O Status screen
