2/24/2021 3:03 PM | |
Joined: 9/27/2006 Last visit: 7/29/2024 Posts: 12272 Rating:
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Hello fatihbarutcu; Have a look at this quote from member M!dhun, taken from this discussion: "Yes, it is possible to communicate one Server with Two clients by different ports (eg. Port 502 & Port 503)." - Multiple clients connecting simultaneously to Modbus Server on Port 502 M!dhum also points to this article from Siemens Support: - Which ports are released for Modbus/TCP communication and how many Modbus clients can communicate with a SIMATIC S7 PN-CPU as Modbus server? https://support.industry.siemens.com/cs/de/en/view/34010717 Hope this helps, Daniel Chartier |
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2 thankful Users |
2/24/2021 9:46 PM | |
Joined: 10/30/2020 Last visit: 6/9/2022 Posts: 9 Rating:
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Thank you for help. I studied the subject you mentioned. I did as described. But i got error again. I attach the relevant photos. I created a single server. I created two blocks using the same server db. One of the blocks is id: 1 and port 502, the other is id: 2 and port 503. (I also tried to do it with same id's but nothing changed.) Now, One of the clients works fine. It doesn't matter which is port 502 or port 503. Whatever port I connect to first, it works. BUT, When I connect the second client to the other idle port, it gives an error. While connected to the other port. what is the problem. Please Help :( AttachmentCilt1.pdf (85 Downloads) |
Last edited by: fatihbarutcu at: 02/24/2021 21:53:41 |
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2/25/2021 9:41 AM | |
Joined: 10/30/2020 Last visit: 6/9/2022 Posts: 9 Rating:
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thanks for your great help |
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