HEIDENHAIN TNC 306 Technical Manual - Manual (Page 449)

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TNC 406/TNC 306 4 Data transfer with BCC 3/97
4.1.2 Outputting a selected program
The following protocol is followed:
Peripheral unit
<ACK>
<ACK>
.
.
.
<ACK>
Transmission path TNC
<STX> 1st line of file <ETB> BCC <DC1>
<ETX> <EOT>
<STX> Last line of file <ETB> BCC <DC1>
.
.
.
<SOH> <N> Name <A> <ETB> BCC <DC1>
.
.
.
The program name may contain up to eight characters.
4.1.3 Outputting all programs
The files are output in order, as in Section 4.1.2 "Outputting a selected program". Control characters
<ETX><EOT> are sent to the peripheral device between files.