HEIDENHAIN TNC 335 Technical Manual - Manual (Page 538)

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TNC 360 3 Standard Data Transmission Protocol 8-31
3.1.2 Outputting a selected program
The TNC outputs all of the program lines in order. The peripheral unit can stop transmission with
character <DC3> and start it again with character <DC1>.
Peripheral unit Transmission path
<DC1>
<DC3>
<NUL> <NUL> <NUL>. . .
1st line of file <CR> <LF>
TNC
.
.
.
.
.
.
Last line of file <CR> <LF>
.
.
.
6th line of file <CR> <LF>
5th line of file <CR> <LF>
3.1.3 Outputting all programs
The procedure is similar to the protocol described in Section 3.1.2 "Outputting a selected program".
The TNC arranges all the programs in order and transmits them. No control character is sent
between the individual files.
3.1.4 Reading in selected program
If a file is read in from a peripheral unit (e.g. a PC), the corresponding name must be indicated in the
TNC and the TNC be started first, i.e. the TNC outputs the character <DC1>. Transmission of the file
concerned is then initiated at the peripheral unit.
When the entire file has been transferred, the TNC sends character <EOT>.