Chapter 3 PLC System Configuration & Settings (2) Before the hardware configuration enters the online mode, the system checks whether the hardware configuration stored in the CPU module is the same as the hardware configuration in the system configuration area. If the hardware configuration stored in the CPU module is different from the hardware configuration in the system configuration area, the system will ask users to download the hardware configuration again.
(3) After the hardware configuration enters the online mode, the statuses of the modules displayed in the indicators on the CPU module displayed in the system configuration area are the same as the actual system configuration area will vary with the actual statuses of the modules. The statuses of the LED statuses of the LED indicators on the CPU module. The LED indicators are the RUN LED indicator, the ERROR LED indicator, and the BUS FAULT LED indicator from top to bottom. An error occurs in the module. The module is normal. The module is in a warning status. The system configuration is different from the actual system configuration.
(An unknown module is installed in this slot.) The system configuration is different from the actual system configuration. (No module is installed in this slot.) The system configuration is different from the actual system configuration. (No expansion backplane is scanned.) For AH560 redundant system, if the Redundancy function is enabled and enters online mode , the status of Master and Standby controllers will be displayed in the system configuration area. 3-249