Table 10-4: Flow Control Of The Serial Interface; Table 10-5: Transmission Modes Of The Serial Interface - Siemens Sinumerik 840D sl Function Manual

DNC Plant/DNC Cell (FBDN1)
10 Configuration

Flow control
Flow control specifies the handshake setting. The following parameters can be
defined:

Table 10-4: Flow control of the serial interface

DTRDSR (DTR/DSR)
RTSCTS (RTS/CTS)
XONXOFF (XON/XOFF)
NONE
Extract from machine configuration file:
FlowCtrl = RTSCTS

XON/XOFF control characters
If controllers are configured with a different code type, deviations may occur
with the XON/XOFF control characters. If flow control is controlled with
XON/XOFF, the control characters for XON/XOFF must be defined in
accordance with the controller.
Extract from machine configuration file:
;
XONChar=17
;XOFFChar=19
Note
If the XON / XOFF control characters in the machine configuration file are
commented out, the internal presettings apply (XON=0x11, XOFF=0x13).

Transmission mode
The transmission mode specifies the type of transmission. The following
transmission modes are available:

Table 10-5: Transmission modes of the serial interface

0
1
Note
In "binary" transmission mode, the transmission file is transmitted 1:1 and is not
formatted beforehand.
Extract from machine configuration file:
Binary = 0
FBDN1/10-174
Hardware handshake
Hardware handshake
Software handshake
No handshake
ASCII
Binary
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Motion Control Information System DNC (FBDN) - 04/10 Edition
05.07