Lsv/2 Protocol - HEIDENHAIN TNC 415 Technical Manual

3.3 LSV/2 Protocol

The LSV/2 protocol is a data transfer protocol for the two-way transfer of commands and data
according to DIN 66019.
The commands and data are transferred in so-called telegrams, i.e. the data is split up into blocks
(telegrams) and transmitted.
The following functions are possible:
Data transfer
File management (delete, copy and rename files)
Write screen to a file (screen dump)
Remote operation of the control functions, i.e. the control screen appears on the screen of the
computer and all TNC functions can be executed from the external computer.
Real DNC operation, i.e. starting and stopping the machine from the PC.
Diagnosis of TNC error messages and key operations for service purposes (the last 100 events
are stored in the TNC).
The LSV/2 protocol always runs in the background (independently of the interface set-up; standard
baud
rate 9600) and is started externally by a PC. A higher baud rate can be set in the interface set-up at
the control.
HEIDENHAIN offer two software packages:
- TNC REMOTE: Software for TNC remote control. Can be run on an AT compatible PC with MS-
DOS. All the above functions are available with this software.
- LSV/2 TOOL BOX: Software tools in C programming language for creating the transfer telegrams
(library, executable files for telegrams, source codes, INCLUDE files for LSV/2,
MAKE files).
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