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S7-200 with and EM277 what cable to use?

5/28/2009 3:26 PM	Rate (0)
Anthony Perrone Regular Member Joined: 3/26/2009 Last visit: 4/24/2025 Posts: 14 Rating: (0)	Hi I have a panel with an S7-200 plc and a EM277 module to communicate profibus signals. I have another S7-200 that I figured I could use to test the signals over profibus. I am confused on what cable to use for the comms. I dont have much expericance with profibus.

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5/28/2009 3:41 PM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 1/16/2026 Posts: 9105 Rating: (1204)	Dear AP26, It should be profibus cable Twisted pair shielded, you can find more in this manual: http://support.automation.siemens.com/WW/view/en/35222591 Pay attention: S7-200 and EM277 can only act as Profibus slave. Best regards, Wizard

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5/28/2009 3:47 PM	Rate (0)
Darius Platinum Member Joined: 9/28/2005 Last visit: 12/9/2025 Posts: 2957 Rating: (243)	Hi, You should use standard profibus cable which is two wires and shield. Article number of Siemens made cable is 6XV1830-0EH10. You can search for it or ask Siemens local dealer. Also you need at least two profibus connectors which also can be Siemens (I think they are the best connectors for profibus) or other 3rd party manufacturer. I will not write article number here because there are dozen of profibus connectors available and they differ by shape and max bandwidth. So you will decida what is thew best for you.
	Best regards, Darius
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5/28/2009 5:57 PM	Rate (0)
Anthony Perrone Regular Member Joined: 3/26/2009 Last visit: 4/24/2025 Posts: 14 Rating: (0)	Thanks for help. I made a mistake its a S7-300 I have to test the profibus the 200 will be the slave

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5/28/2009 7:51 PM	Rate (0)
Darius Platinum Member Joined: 9/28/2005 Last visit: 12/9/2025 Posts: 2957 Rating: (243)	This does not change anything in cable or connectors selection.
	Best regards, Darius
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