HEIDENHAIN MANUALplus 620 Technical Manual page 1780

Software
handshaking
Defining the file
system
1780
Control of data transfer is achieved by control characters transmitted via the
data line.
In MP_flowControl, you define whether the control stops transfer from an
external device with control character <DC3>. Transfer is then resumed with
character <DC1>. (XON/XOFF method)
If transfer is stopped with the control character <DC3>, up to three more
characters can be stored; any further incoming characters are lost. Software
handshaking is normally recommended when interfaces are connected to an
external device.
MP_flowControl
Handshaking: Type of data-flow checking
Available from NCK software version: 597 110-01.
Format: Selection menu
Selection: NONE
No data-flow checking; handshaking not active
RTS_CTS
Hardware handshaking; transfer is stopped with RTS active
XON_XOFF
Software handshaking; transfer is stopped with DC3 (XOFF)
active
Default: RTS_CTS
Access: LEVEL2
Reaction: NOTHING
In MP_fileSystem, define the file system for data transmission over the serial
interface. This machine parameter is not mandatory. Remove the parameter
from the configuration if you do not need a special file system.
Select one of two different file systems from the selection menu.
MP_fileSystem
Define the file system for file operation via the serial interface
Available from NCK software version: 597 110-01.
Format: Selection menu
Selection: EXT
Minimum file system for external devices. Corresponds to the
EXT1 and EXT2 modes of earlier TNC controls. Use these
settings if you are using printers, punches, or non-HEIDENHAIN
data transfer software.
FE1
Use this setting for communication with the external
HEIDENHAIN FE 401 B or FE 401 floppy disk unit as of
software 230 626-03, or for communication with the
"TNCserver" PC software from HEIDENHAIN.
Default: EXT
Access: LEVEL2
Reaction: NOTHING
HEIDENHAIN Technical Manual MANUALplus 620