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Communication between two s7 400 PLCs in deifferent projects

6/14/2018 8:58 AM	Rate (0)
Nalti Advanced Member Joined: 1/31/2013 Last visit: 2/27/2025 Posts: 34 Rating: (0)	Hello all, I have to communicate(send only a bit from one to another) between two s7 400 PLC in different projects, physically reachable by each other via ethernet but not configured in netpro. Thank you in advance.

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6/14/2018 9:14 AM	Rate (1)
mopS04 Platinum Expert Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating: (1056)	hi naldi, I recommend you this manual: CPU-CPU Communication with SIMATIC Controllers inside it you will find such tables, which shows you the posibilities to comunicate between two CPUs(page 101): you will also find a description of the particular communication-possibilities. hope this helps, regards,
	FCK WAR! Be nice!
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6/14/2018 9:36 AM	Rate (0)
bg2492 Diamond Member Joined: 5/16/2014 Last visit: 9/12/2022 Posts: 7298 Rating: (2186)	Hello naldi, if you have the PLCs in different projects, you can create a not specified connection with "IE General" to the PLC in the other project. Best Regards Georg Berghof
	PS: If this post did really help you, you may use the Rate-button
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6/14/2018 1:03 PM	Rate (0)
Nalti Advanced Member Joined: 1/31/2013 Last visit: 2/27/2025 Posts: 34 Rating: (0)	thank you !

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