Siemens SINUMERIK 840D sl Configuration Manual

4.1.6 Assignment overview
From the following block number assignment overview, you can find out whether a specific
block number (or block address) can be used for the PLC user program, or whether it is
assigned or reserved by Siemens or the PLC basic program.
Table 4-7 Assignment of FB numbers
FB number Availability Occupied by
0 Reserved Siemens
1 Occupied Siemens (PLC basic program)
2...14 Reserved Siemens
15 Occupied Siemens (PLC basic program)
16...29 Reserved Siemens
30...999 Freely available (user
program)
-
1000...1009 Reserved Siemens
1010...1019 Reserved or available Exclusively available for F blocks of Safety Integra‐
ted plus (F-PLC)
1020...1023 Reserved Siemens
1024...7999 Freely available (user
program)
-
Table 4-8 Assignment of FC numbers
FC number Availability Occupied by
0...1 Reserved Siemens
2...3 Occupied Siemens (PLC basic program)
4 Reserved Siemens
5 Occupied Siemens (PLC basic program)
6...29 Reserved Siemens
30...999 Freely available (user
program)
-
1000...1023 Reserved Siemens
1024...7999 Freely available (user
program)
-
Table 4-9 Assignment of DB numbers
DB number Availability Occupied by
1 Reserved Siemens
2...11 Occupied Siemens (PLC basic program)
12 Occupied Siemens (computer link and
transport system interface)
13...14 Reserved Siemens (PLC basic program)
15...16 Occupied Siemens (PLC basic program)
Programming the PLC
4.1 General information about the PLC program
SINUMERIK STEP 7 Toolbox V15.1
66 Configuration Manual, 12/2018, A5E46279635B AA

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based