HEIDENHAIN TNC 620 User Manual page 590

17
MOD Functions
17.10 Setting up data interfaces
Set handshake
(flowControl no. 106706)
By handshaking, two devices control data transfer between them.
A distinction is made between software handshaking and hardware
handshaking.
No data flow checking (NONE): Handshaking is not active
Hardware handshaking (RTS_CTS): Transmission stop is active
through RTS
Software handshaking (XON_XOFF): Transmission stop is active
through DC3 (XOFF)
File system for file operation
(fileSystem no. 106707)
In fileSystem you define the file system for the serial interface.
This machine parameter is not required if you don't need a special
file system.
EXT: Minimum file system for printers or non-HEIDENHAIN
transmission software. Corresponds to the EXT1 and EXT2
modes of earlier TNC controls.
FE1: Communication with the TNCserver PC software or an
external floppy disk unit.
Block check character
(bccAvoidCtrlChar no. 106708)
With Block Check Character (optional) no control character, you
determine whether the checksum can correspond to a control
character.
TRUE: The checksum does not correspond to a control character
FALSE: The checksum can correspond to a control character
Condition of RTS line
(rtsLow no. 106709)
With Condition of RTS line (optional) you determine whether the
"low" level is active in idle state.
TRUE: Level is "low" in idle state
FALSE: Level is not "low" in idle state
590
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015