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Functions of the IM 151/CPU
5-13
ET 200S Interface Module IM 151/CPU
A5E00058783-01
5.6
Blocks
This section provides an overview of the blocks that run in the CPU component of
the IM 151/CPU.
The operating system of the CPU is designed for event-driven processing of the
user program. The following tables show which organization blocks (OBs) the
operating system automatically invokes in response to which events.
More Information
You will find a detailed description of the blocks and the start events listed below in
the
System and Standard Functions Reference Manual. There is an overview of all
the
STEP 7 documentation in the ET 200S Distributed I/O System manual.
Overview of All the Blocks
Table 5-8
Overview of the Blocks
Block
Number
Area
Maximum Size
Remarks
OB
13
–
8 KB
All the possible OBs are listed below this
table.
FC
128
0 – 127
–
FB
128
0 – 127
–
DB
127
1 – 127
0 is reserved
SFC
48
–
–
You will find a list of all the SFCs of the CPU
component in Appendix C.1.
SFB
7
–
–
You will find a list of all the SFBs of the CPU
component in Appendix C.2.
Summary of Contents for SIMATIC IM 151/CPU
Page 6: ...Important Information vi ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 14: ...Contents xiv ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 42: ...ET 200S in the PROFIBUS Network 3 12 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 68: ...Commissioning and Diagnostics 4 26 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 98: ...Technical Specifications 6 8 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 108: ...Cycle and Response Times 7 10 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 190: ...Execution Times of the SFCs and SFBs C 4 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...
Page 196: ...Migration of the IM 151 CPU D 6 ET 200S Interface Module IM 151 CPU A5E00058783 01 ...