8 – 26 HEIDENHAIN Technical Manual TNC 426, TNC 430
Output marked files Marked files are output in the same protocol as for outputting the selected
files. After each file, the control characters <EXT><EOT> are sent to the
peripheral device.
Read-in selected file To read in a file from an external memory, the TNC sends a header with the
file name.
TNC to peripheral Peripheral to TNC
<SOH><K>Name<E><ETB>BCC
<DC1>
<ACK>
<STX>“1st line”<ETB>BCC<DC1>
<ACK> ...
... <STX>“last line”<ETB>BCC <DC1>
<ACK> <ETX>
<EOT>