Table of contents
1 Security information......................................................................................................................................7
2 Preface .........................................................................................................................................................9
2.1 Documentation guide for ET 200SP HA.................................................................................12
2.2 2D matrix code (QR code / EAN code) ..................................................................................14
3 System overview ........................................................................................................................................15
3.1 What is the SIMATIC ET 200SP HA distributed I/O system? ................................................15
3.2 Basic components of the IO device........................................................................................17
3.3 Accessories for the IO device ................................................................................................21
4 Plant planning.............................................................................................................................................23
4.1 Topology ................................................................................................................................23
4.2 Basics.....................................................................................................................................25
4.3 Special conditions for safe use of the ET 200SP HA .............................................................26
4.4 Potential relationships in the IO device ..................................................................................27
4.5 Hardware configuration ..........................................................................................................28
4.6 Selecting the carrier module ..................................................................................................30
4.7 Configurations of the slots of I/O modules .............................................................................32
4.7.1 Selecting a terminal block for I/O modules.............................................................................32
4.7.2 Forming potential groups .......................................................................................................34
4.7.2.1 Forming potential groups by arranging terminal blocks .........................................................34
4.7.2.2 Configuration examples for potential groups..........................................................................37
4.7.2.3 Terminal block with potential distributor (L+ potential)...........................................................39
4.7.2.4 Terminal block with potential distributor (M potential) ............................................................41
4.8 Redundancy and changes during operation ..........................................................................43
4.8.1 Connection of the IO device via system redundancy .............................................................44
4.8.2 Connection of the IO device via media redundancy...............................................................47
4.8.3 IO redundancy........................................................................................................................49
4.9 Time synchronization and time stamping...............................................................................52
4.9.1 Overview - Time synchronization and time stamping with ET 200SP HA..............................52
4.9.2 Plant-wide time synchronization and time stamping with a precision of 1 ms........................52
4.9.3 Time synchronization and time stamping with a single CPU .................................................55
4.9.4 Time synchronization and time stamping with redundant CPU..............................................56
5 Installation ..................................................................................................................................................59
5.1 Overview ................................................................................................................................59
5.2 Minimum clearances in the control cabinet ............................................................................60
5.3 Installing the rail .....................................................................................................................61
ET 200SP HA Distributed I/O system
System Manual, 08/2019, A5E39261167-AD 3
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