Siemens SINUMERIK 840D sl Programming Manual page 555

Addressing in the NC/EES notation
Addressing files of the passive file system
Files of the passive file system are generally addressed in the NC notation (directory and file
names begin with the domain identifier "_N_", "_" is the separator for the file identifier) without
specifying the drive name. An addressing in EES notation (without domain identification "_N_",
separator for the directory/file extension is ".") is, however, also permitted.
Example:
● NC notation: "/_N_SPF_DIR/_N_SUB1_SPF"
● EES notation: "/SPF.DIR/SUB1.SPF"
Note
The addressing schemes for files of the passive file system in EES notation are converted
internally into NC notation in accordance with the following rules:
● Directory and file names are extended with the domain identification "_N_".
● If the fourth-last character in the directory or file name is a period ("."), it will be converted into
an underscore ("_").
The passive file system can also be explicitly addressed using the predefined drive names "//
NC:".
Example:
● NC notation: "//NC:/_N_SPF_DIR/_N_SUB1_SPF"
● EES notation: "//NC:/SPF.DIR/SUB1.SPF"
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Work preparation
3.4 File and Program Management
555