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Preface ...................................................................................................................................................... 3
1
Application and properties ......................................................................................................................... 7
1.1
Connecting the S7-1200 to PROFIBUS.........................................................................................7
1.2
Communications services of the CM .............................................................................................7
1.3
Performance data ..........................................................................................................................8
1.4
Requirements for operation ...........................................................................................................9
1.5
Configuration examples for PROFIBUS ......................................................................................10
2
Displays and connectors.......................................................................................................................... 11
2.1
Opening the covers of the housing ..............................................................................................11
2.2
LEDs ............................................................................................................................................12
2.3
Electrical connections ..................................................................................................................15
3
Installing, connecting up and commissioning ........................................................................................... 17
3.1
Warning overvoltage protection ...................................................................................................19
3.2
Installing and commissioning the CM 1243-5 ..............................................................................19
3.3
Pin assignment of the socket for the external power supply .......................................................22
3.4
Pinout of the D-sub socket...........................................................................................................23
4
Configuration and programming .............................................................................................................. 25
4.1
Configuration................................................................................................................................25
4.2
Programming................................................................................................................................26
5
Operating the module .............................................................................................................................. 27
5.1
Note on operation ........................................................................................................................27
5.2
Diagnostics...................................................................................................................................27
5.3
Downloading firmware .................................................................................................................28
5.4
Module replacement ....................................................................................................................28
6
Technical specifications........................................................................................................................... 29
A
Dimension drawings ................................................................................................................................ 31
B
Approvals................................................................................................................................................. 33
C
References .............................................................................................................................................. 39
D
Training, Service & Support ..................................................................................................................... 41
Glossary .................................................................................................................................................. 43
Index........................................................................................................................................................ 47
CM 1243-5
Operating Instructions, 04/2011, C79000-G8976-C246-01
5
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