HEIDENHAIN TNC 335 Technical Manual - Manual (Page 548)

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TNC 360 4 Data transfer with BCC 8-41
Peripheral unit
<ACK>
.
.
.
<ACK>
<SOH> <H> <E> <ETB> BCC <DC1>
Transmission path TNC
<ACK>
<EOT>
<ACK>
.
.
.
<STX> 1st line PGM1 <ETB> BCC <DC1>
<STX> 3rd line PGM1 <ETB> BCC <DC1>
<STX> 2nd line PGM1 <ETB> BCC <DC1>
<STX> 4th line PGM1 <ETB> BCC <DC1>
<STX> Last line of last PGM <ETB>
<STX> 1st line PGM3 <ETB> BCC <DC1>
<STX> 3rd line PGM2 <ETB> BCC <DC1>
<ETX>
<ACK>
BCC <DC1>
"Read in program Yes/No"
<ACK> Yes
"Read in program Yes/No"
<ACK>
<SOH> <H> <E> <ETB> BCC <DC1>
<ACK>
<SOH> <H> <E> <ETB> BCC <DC1>
.
.
.
.
.
.
The number of blocks transmitted before the TNC stops to await acknowledgment will depend on
the transfer rate set. At a low data transfer rate, the TNC will stop after the first block.