Siemens Sinumerik 840D sl Function Manual page 209

05.07
User and Password

In these fields, you enter the user name and password required for the FTP.
Extract from the machine configuration file:
User=
Password=
Mode

Mode specifies the transmission type. The following transmission modes are
available:
1: ASCII
2: Binary
Extract from machine configuration file:
Mode=2
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Motion Control Information System DNC (FBDN) - 04/10 Edition
DNC Plant/DNC Cell (FBDN1)
10 Configuration
FBDN1/10-201