Restriction of 250 bytes of config data for a forward open connection

The config data of the forward open request is restricted to 250 by the NXD database definition (table CONFIG_DATA). CIP specification defines a max value of 512 bytes ofconfig data. Inside the EDS file 408 bytes of config data is defined, which results in a corrupt database.

Solution: We will change the maximum size of config data in the database definition to 512 bytes.