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Same port to different IP addresses.

6/14/2010 3:56 PM	Rate (0)
Miguel Allende Posts: 35 Rating: (0)	Hi! I have to communicate with two computers via TCP. These computers are active in the communication and they try to open the same PLC port. The connections are: First computer PLC IP:218.0.14.101 218.0.14.50 Port:8737 3000 Second computer PLC IP:218.0.14.103 218.0.14.50 Port:8737 3000 When I try to make this configuration the NETPRO gives an error because you CAN NOT use the same port in TWO different connections. I can not change the remote PORT in the computers, so they always look for the PORT 3000. Any idea? I can solve it with another ethernet CP, because I can configure the same port. Apart from this idea I don't have more. Thanks.
Miguel Allende Posts: 35 Rating: (0)
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6/14/2010 4:14 PM	Rate (0)
Kaulquappe Posts: 3093 Rating: (324)	Dear Miguel, you can only use a port number twice with Simatic stations and TCP communication when you have got two CPs (and so two different IP addresses). Regards, Kaulquappe
Kaulquappe Posts: 3093 Rating: (324)
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6/14/2010 4:20 PM	Rate (0)
Miguel Allende Posts: 35 Rating: (0)	I supposed it. In other systems you can use the same port to different remote IPs. In NETPRO there is a possibility to make a TCP connection filling up the LOCAL IP and PORT number leaving in blanck the REMOTE IP and PORT. The card is waiting for a remote IP to open the channel. When the channel is established (with the 218.0.14.101 or 21.0.14.13 ip) it stops checking to open the channel with the other IP... Finally I suppose I have to buy a new card. Thanks for your quick answer.
Miguel Allende Posts: 35 Rating: (0)
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6/27/2014 8:28 PM	Rate (0)
Narrator1 Bronze Member Joined: 3/25/2013 Last visit: 3/21/2019 Posts: 176 Rating: (1)	New topic split intoCommunication with two printers with the same port and different IP addresses. With best regards, Narrator1

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