HEIDENHAIN TNC 306 Technical Manual - Manual (Page 451)

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TNC 406/TNC 306 4 Data transfer with BCC 3/97
4.1.5 Reading in all programs
In this case the TNC sends a header without a program name, and the peripheral unit sends the first
file. The TNC then immediately outputs a header again without a program name, and the next
program is sent and so on.
Peripheral unit
<ACK>
.
.
.
<ETX>
<SOH> <H> <E> <ETB>
Transmission path TNC
<ACK>
<EOT>
<ACK>
.
.
.
<STX> 1st line PGM1 <ETB> BCC <DC1>
<STX> Last line of last file <ETB>
<SOH> <H> <E> <ETB>
<SOH> <H> <E> <ETB>
<ACK>
.
.
.
<STX> Last line PGM1 <ETB> BCC <DC1>
<ACK>
.
.
.
BCC <DC1>
BCC <DC1>
BCC <DC1>
BCC <DC1>