CJ2 CPU Unit Software User's Manual - CIP ETI

5 Understanding ProgrammingSetting Network SymbolsUse the following procedure to set network symbols.1 Right-click on the global variable table and select Insert Symbol.NoteNetwork symbols cannot be specified in the local symbol tables.2 The following New Symbol Dialog Box will be displayed.Select the Net, Variable Check Box, and then select the Publication, Input, or Output Option, andthen click the OK Button.Select the Net. VariableCheck Box, and then selecteither Publication, Input, orOutput Option.A maximum of 48 characters can be used for a network symbol name. The names are not case sensitive.Type of symbolNetwork symbolDescriptionSymbols accessiblefrom outside by usingtags.Network symbolcolumn in globalsymbol tablePublicationInputOutput Network Symbol Column in Global Symbol TableDescription• Symbols accessible form outside byusing CIP message communications.• Tag data links are not supported.• Symbols accessible from outside byusing CIP message communications ortag data links.• Symbols for data input (from other CPUUnit to local CPU Unit) when tag datalinks are used.• Symbols accessible from outside byusing CIP message communications ortag data links.• Symbols for data output (from localCPU Unit to other CPU Unit) when tagdata links are used.Make the setting in the Network Symbol Column in the Global Symbol Table.The symbol that has been set to Publish, Input, or Output will be the network symbol.5-50 CJ2 CPU Unit Software User’s Manual