4 Description files for CANopen4.1 Standard EDS files50 Gateway XN-312-GW-CAN 06/16 MN050003-EN www.eaton.euUpdating the operating systemEaton may make new operating systems available in order to fix firmwareerrors in the CAN gateway and/or provide new functionalities, Download cen-ter → Page 11.In the case of XN-312-GW-CAN, the operating system needs to be updatedvia the diagnostic interface using XN300-Assist.For information on how to update the operating system, please refer to theonline help for XN300-Assist. Open the "Search" tab and enter "Update oper-ating system" into the search box.4.1 Standard EDS filesThere might be multiple versions of each EDS file for the CANopen gateway.The version number of the EDS file being used must match the version num-ber of the operating system loaded onto the gateway. This is the only way toensure that the range of functions in the EDS file and in the XN300 gatewaywill match.Within each version, the EDS file with the highest revision number must beselected, as this is the only file that will contain the description for all cur-rently availableXN300 system I/O slice modules.The first EDS file for the XN-312-GW-CAN CANopen gateway is named"XN-312-GW-CAN_V0102.eds".To download the standard EDS file, please visit our Download Center→ Page 11. To find it quickly, simply enter "XN300" or "EDS" as a searchterm.4.2 Project-specific EDS fileIn addition to the standard EDS file, you can also use XN300-Assist to gener-ate a project-specific EDS file. To do this, you can either generate a project-specific EDS file directly from the modular project view or read the XN300slice modules online. The selection of XN300 slice modules on the systembus will already be assigned to the XN-312-GW-CAN field bus module.If you load the project-specific EDS file into the PLC programming tool, youwill not need to add I/O slice modules to the configuration → Section“5.2.3.2 Configuring the XN-322 slice modules”, page 57.Use the option of using a project-specific EDS file in the following cases:• The CANopen configurator you are using has problems processing amodular EDS file.• You want to avoid selecting I/O slice modules by accident later on.Follow the steps below in order to generate a project-specific EDS file:▶ Start XN300-Assist.