Table of contents
Preface.........................................................................................................................................................3
1
Safety notes..................................................................................................................................................7
2
Documentation guide....................................................................................................................................9
3
Product overview........................................................................................................................................11
3.1
3.2
Components...........................................................................................................................13
3.3
Connectable I/O modules.......................................................................................................19
4
Connecting.................................................................................................................................................21
4.1
Safety regulations..................................................................................................................21
4.2
Wiring rules............................................................................................................................22
4.3
Connecting components........................................................................................................24
4.3.1
4.3.1.1
4.3.2
4.3.3
4.4
Labeling terminal modules.....................................................................................................34
5
5.1
5.2
5.3
S7-300 digital modules...........................................................................................................41
5.4
S7-300 analog modules.........................................................................................................45
5.5
5.6
5.7
5.8
5.9
Connecting cable...................................................................................................................56
6
Technical specifications..............................................................................................................................59
6.1
Standards and approvals.......................................................................................................59
6.2
6.3
6.4
6.5
System cabling for S7-300
Manual, 09/2018, 70327045899
5