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Table of contents

Preface .........................................................................................................................................................3

1 Product overview ........................................................................................................................................13

1.1 What Are Distributed I/O Devices ..........................................................................................13

1.2 What is PROFIBUS DP?........................................................................................................13

1.3 ET 200PA SMART Distributed I/O device..............................................................................14

2 Assignment planning ..................................................................................................................................17

2.1 Configuration variants ............................................................................................................17

2.2 Configuring the mechanical structure.....................................................................................17

2.2.1 Horizontal or vertical configuration.........................................................................................17

2.2.2 Clearance Measurements ......................................................................................................18

2.2.3 Arrangement of the modules for the function "Change During Operation" and / or

"Redundancy" ........................................................................................................................20

2.3 Configuring the electrical structure.........................................................................................22

2.3.1 General rules and regulations for operating an ET 200PA SMART.......................................22

2.3.2 Operation of the ET 200PA SMART with process I/O on a grounded supply ........................24

2.3.3 Configuration of the ET 200PA SMART with ungrounded reference potential ......................27

2.3.4 Configuration of the ET 200PA SMART with isolated modules .............................................29

2.3.5 Configuration of the ET 200PA SMART with non-isolated modules ......................................30

3 Installation ..................................................................................................................................................31

3.1 Overview ...............................................................................................................................31

3.2 Installation ..............................................................................................................................31

3.2.1 Mounting Sequence ...............................................................................................................31

3.2.2 Installing the DIN rail ..............................................................................................................32

3.2.3 Installing active bus modules and modules............................................................................35

3.2.4 After installation......................................................................................................................38

3.3 Setting the PROFIBUS address.............................................................................................39

4 Connecting .................................................................................................................................................41

4.1 Overview ................................................................................................................................41

4.2 Connecting PROFIBUS DP....................................................................................................41

4.2.1 Connecting the Bus Connector ..............................................................................................41

4.3 Wiring the power supply and modules ...................................................................................42

4.3.1 Wiring rules ............................................................................................................................42

4.3.2 Wiring the power supply and IM 650......................................................................................43

4.3.3 Wiring front connectors of the signal modules .......................................................................45

4.3.4 Connecting shielded cables via a shield connecting element ................................................49

5 Commissioning ...........................................................................................................................................53

5.1 PROFIBUS DP.......................................................................................................................53

ET 200PA SMART

Operating Instructions, 06/2019, A5E34192013-AB 7