Chapter 3 PLC System Configuration & Settings After goes into On-line mode, the display may change based on the actual configuration. And the indicators of the CPU PLC are “Run” and “Error” separately on the top and the bottom. Unconfigured module detected The detected module is different from the configuration Module is in a warning state (WARING) Module is in error state (ERROR) Module status is normal Communication Setting This feature only supports standalone version to build the connection to the target device. Click “Communication Setting” on HWCONFIG tool bar under the Communication tab to open the Communication setting page. 3-31