Table of contents
Preface ...................................................................................................................................................... iii
1
2
Installation Order .................................................................................................................................... 2-1
3
S7-300 components................................................................................................................................ 3-1
3.1
3.2
4
Configuring ............................................................................................................................................. 4-1
4.1
Overview .................................................................................................................................... 4-1
4.2
4.3
Component dimensions ............................................................................................................. 4-4
4.4
Required clearances .................................................................................................................. 4-6
4.5
4.6
4.7
4.8
4.9
4.9.1
4.9.2
4.9.3
4.9.4
4.9.5
Grounding measures ............................................................................................................... 4-21
4.9.6
Overview: Grounding ............................................................................................................... 4-24
4.10
4.11
Planning subnets ..................................................................................................................... 4-28
4.11.1
Overview .................................................................................................................................. 4-28
4.11.2
4.11.2.1 Overview .................................................................................................................................. 4-30
4.11.3
4.11.3.1 Overview .................................................................................................................................. 4-45
4.11.3.2 PROFINET nodes .................................................................................................................... 4-45
S7-300, CPU 31xC and CPU 31x: Installation
Operating Instructions, Edition 08/2004, A5E00105492-05
vii