Siemens SINUMERIK 840D sl Programming Manual page 241

CHANDATA statement
In the part program, the CHANDATA instruction may only be set for that channel in which the
NC program is executed; i.e. the instruction can be used to protect NC programs so that
they are not executed in the wrong channel.
Program processing is aborted if an error occurs.
Note
INI files in job lists do not contain any CHANDATA instructions.
Save initialization program (COMPLETE, INITIAL)
The files of the working memory can be saved on an external PC and then read in again
from there.
● The files are saved with COMPLETE.
● INITIAL is used to create an INI file (_N_INITIAL_INI) over all areas.
Read-in initialization program
NOTICE
If the file is read-in with the name "INITIAL_INI", then all data that are not supplied in the file
are initialized using standard data. Only machine data are an exception. This means that
setting data, tool data, ZO, GUD values, ... are supplied with standard data (normally
"ZERO").
For example, the file COMPLETE_TEA_INI is suitable for reading-in individual machine data.
The control only expects machine data in this file. This is the reason that the other data
areas remain unaffected in this case.
Loading initialization programs
The INI programs can also be selected and called as part programs if they only use data of
one channel. This means that it is also possible to initialize program controlled data.
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
CAUTION
2.2 Working memory (CHANDATA, COMPLETE, INITIAL)
File and program management
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