HEIDENHAIN MANUALPLUS 620 - 9.7.3 LSV2 transmission protocol

1788 HEIDENHAIN Technical Manual MANUALplus 620
Load selected file To download a file from an external storage device, the control transmits a
header with the corresponding file name.
9.7.3 LSV2 transmission protocol
The LSV2 protocol is a data transfer protocol for the two-way transfer of
commands and data.
The data is transferred in blocks—so-called telegrams—into which the data is
split up.
The following functions are possible:
 Data transfer
 File management, such as deleting, copying and renaming files
 Changing, creating and deleting paths
 Remote operation of the control functions. The control screen appears on
the computer monitor. All functions can be executed from the computer.
 Real DNC operation. Starting and stopping the machine from the PC
 Diagnosis of control error messages and keystrokes for service purposes.
The last 1000 events are stored in the control.
HEIDENHAIN offers two LSV2 software packages. Please contact
HEIDENHAIN for further information.
Control to peripheral device Peripheral device to control
<SOH><K>Name<E><ETB>BCC
<DC1>
<ACK>
<STX>"1st line"<ETB>BCC<DC1>
<ACK> ...
... <STX> "last line"<ETB>BCC <DC1>
<ACK> <ETX>
<EOT>