Siemens SINUMERIK 840D sl Configuration Manual page 49

Under the "Master copies" folder there are four subfolders with different contents. You can
copy the contents of these subfolders in their entirety or you can copy the individual objects
as needed.
● Using the Ctrl or shift key, you can select several objects of the same type and then copy
them.
● If you copy a master copies folder in its entirety (e.g. "840D sl PLC BP"), the folder
structure is imported, i.e. new groups (subfolders) are created (Page 69) in your
"Program blocks" folder.
Table 3- 1 Use and content of the master copies of the PLC basic program
Folder Purpose
840D sl PLC This master copy is intended
Basic Program to create a completely new
project.
840D sl PLC This master copy is used to
Basic Program upgrade blocks after the
(upgrade) firmware version of an NCU
is updated, i.e. if you have
carried out a device re-
placement (Page 25) or a
migration.
SINUMERIK STEP 7 Toolbox V14 SP1
Configuration Manual, 05/2017
3.1 General information about the PLC program
Contents
The master copy contains all the blocks that you require for the maximum
configuration (31 axes, 10 channels).
Use of axis/channel DB
If your machine is using fewer axes or channels, you can either copy only
the required blocks or you can delete the blocks that are not required in
the project tree after copying.
If you have blocks in your project that are not required, this increases,
for example, the time required for the loading or export of the PLC sym-
bols.
Use of ALMSG_DB [DB2]
This master copy contains ALMSG_DB [DB2] in the variant Ex-
tendAlMsg=False.
The used DB2 variant must match in the startup for parameterization of
the RUN_UP [FB1] in OB100 [OB100] (parameter ExtendAlMsg).
This master copy contains all the know-how-protected blocks that you
require for the maximum configuration (31 axes, 10 channels).
Blocks to be changed by the user are not included (no organization
blocks and not FC12 [FC12], Diagnose [FB29], DB4 [DB4], DB5 [DB5]).
Use of axis/channel DB
If your machine is using fewer axes or channels, you can either copy only
the required blocks or you can delete the blocks that are not required in
the project tree after copying.
If you have blocks in your project that are not required, this increases,
for example, the time required for the loading or export of the PLC sym-
bols.
Use of ALMSG_DB [DB2]
This master copy contains ALMSG_DB [DB2] in the variant Ex-
tendAlMsg=False.
The used DB2 variant must match in the startup for parameterization of
the RUN_UP [FB1] in OB100 [OB100] (parameter ExtendAlMsg).
Programming the PLC
49