
Distributed I/O system
6System Manual, 08/2019, A5E31861578-AG
Preface ................................................................................................................................................... 3
1 System overview..................................................................................................................................... 8
1.1 What is the SIMATIC ET 200AL distributed I/O system? ........................................................ 8
1.2 Components........................................................................................................................... 11
2 Documentation guide ............................................................................................................................ 12
3 Application planning.............................................................................................................................. 14
3.1 Hardware configuration.......................................................................................................... 14
3.2 Configuration variants with ET-Connection ........................................................................... 15
3.2.1 ET 200AL with ET-Connection............................................................................................... 15
3.2.2 Hybrid configuration ET 200AL/ET 200SP with ET-Connection............................................ 17
4 Mounting............................................................................................................................................... 20
4.1 Basics..................................................................................................................................... 20
4.2 Mounting modules.................................................................................................................. 21
5 Connecting ........................................................................................................................................... 25
5.1 Rules and regulations for operation ....................................................................................... 25
5.2 Operation of the ET 200AL on grounded/non-grounded infeed ............................................ 27
5.3 Electrical configuration of the ET 200AL................................................................................ 30
5.4 Connecting ET 200AL to functional earth .............................................................................. 33
5.4.1 Mounting ET 200AL modules on conductive substrate ......................................................... 33
5.4.2 Mounting ET 200AL modules on non-conductive substrate .................................................. 34
5.5 Connecting cables for ET 200AL ........................................................................................... 36
5.6 Wiring ..................................................................................................................................... 37
5.7 ET 200AL marking ................................................................................................................. 41
5.7.1 Factory markings.................................................................................................................... 41
5.7.2 Optional markings .................................................................................................................. 42
5.7.3 Mounting identification labels................................................................................................. 42
6 Configuring ........................................................................................................................................... 44
7 Configuration control (option handling) .................................................................................................. 48
7.1 Configuration control.............................................................................................................. 48
7.2 Configuring............................................................................................................................. 51
7.3 Creating the control data record ............................................................................................ 53
7.3.1 Introduction ............................................................................................................................ 53
7.3.2 Control data record for the ET 200AL distributed I/O system................................................ 55
7.3.3 Feedback data record at the ET200AL distributed I/O system.............................................. 57
7.3.4 Example of a configuration control......................................................................................... 59