Siemens SINUMERIK 840D sl Configuration Manual page 64

Programming the PLC
4.1 General information about the PLC program
Table 4-5 Data blocks (DBs)
Address
DB2
DB4
DB5
DB7
DB8
DB10
DB11
DB15
DB16
DB18
DB19
DB21...DB30
DB31...DB61
DB71
DB72
DB73
DB77
DB1000
DB1001
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Icon
ALMSG_DB
DB4
DB5
gp_par
DB8
NC
Mode group
DB15
PI
SPL
MMC
Chan1...Chan10
Axis1...Axis31
TMLoadIF
TMSpindleIF
TMRevIF
DB77
CtrlE
SentronPac
Description
Interface between user program and AL_MSG [FC10], contains bit
arrays for blocking and stop signals as well as fault and status mes‐
sages.
Comment: If you use the DB2 variant "ExtendAlMsg = True", you
must copy it from the separate master copies folder
"ALMSG_DB_ExtendAlMsg". The other folders contain the variant
"ExtendAlMsg = False".
Block contains configuration data for tool management and the pa‐
rameterization of the alarms for the bit fields in the ALMSG_DB
[DB2] as fault or status message for the DB2 variant "ExtendAlMsg
= False".
Interface between user program and AL_MSG [FC10], contains the
parameterization of the alarms for the bit fields in the ALMSG_DB
[DB2] as fault or status message for the DB2 variant "ExtendAlMsg
= True".
Instance DB from RUN_UP [FB1]. Contains parameters for config‐
uring operating components and other parameters of the basic pro‐
gram.
DB only for internal use in the basic program.
Interface between user program and NC, contains signals from/to
the NC, PLC and operating software.
Interface between user program and mode groups, contains signals
from/to the NC, PLC and operating software.
General communication
Interface for PI_SERV2 [FB7], contains definitions for all available PI
services.
Safety Integrated data (SPL)
Interface for PI_SERV2 [FB7], contains definitions for all available PI
services.
Interface between user program and channel, contains signals from/
to channel 1...10.
Interface between user program and axis/spindle, contains signals
from/to axis/spindle 1...31.
Interface between user program and tool management, contains
signals from/to Load/Unload magazine
Interface between user program and tool management, contains
signals for spindle as change position.
Interface between user program and tool management, contains
signals for turret.
MCP/BHG (SDB210)
Interface between user program and operating software, contains
energy saving profiles for Ctrl-Energy.
Interface between user program and operating software, contains
signals for SENTRON PAC energy monitoring devices.
Configuration Manual, 12/2018, A5E46279635B AA
SINUMERIK STEP 7 Toolbox V15.1