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CP 343-1 Lean Can't creat S7 Comunication?

8/11/2010 11:04 AM	Rate (0)
bits Posts: 2 Rating: (0)	Hi! Everybody,I have some question when use the Cp 343-1 Lean: My Soft is Step7 V5.4 with SP4 My Project have two 300 Station:S1 and S2.In S1,Every Station have one CP 343-1 lean.In S1,the CP's IP is 192.168.0.2,Subnet mask is 255.255.255.0.In S2 ,the CP's IP is 192.168.0.3,Subnet mask is 255.255.255.0. the CPU is 315-2 DP(2AH14-0AB0),the CP is CP 343-1 Lean(1CX10-0XE0). When I finish Configed the Hardware in the HW config,I enter the "Net pro" Program.In there,I Want to Creat anew Connectionbetween the two station.But in the "Insert a new Connection" window,when I choose the "S7 connection" ,there are an error:"276:27" the CP 343-1 Lean Can't Creat the S7 connection?
bits Posts: 2 Rating: (0)
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8/11/2010 11:22 AM	Rate (0)
umencho Diamond Expert Joined: 3/21/2006 Last visit: 3/14/2025 Posts: 10239 Rating: (1183)	Hello, The CP343-1 Lean only supports S7 communication as a server; that means that if you use a CP343-1 Lean in the S1 station, configure the S1 station as a server and the S2 station should be as a client for S7 communication. But in your case - you don't have hardware which is possible to be a client. Best regards, Hristo Mihalev

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8/11/2010 1:59 PM	Rate (0)
J_Bell Posts: 5822 Rating: (412)	Hello, I fully agree with UMENCHO but I would also like to add some alternatives. If you want to communicate between your three PLCs you may also use the AG_SEND / AG_RECV interface provided with the CP 343-1 Lean. To do so you may use one of the following protocols: TCP/IP Connection UDP/IP Connection ISO on TCP Connection. Personally I would strongly recommend the use of ISO on TCP Connections in your case because you have the advantage of being able to use dynamic data length to send and to receive. Best regards J_Bell
J_Bell Posts: 5822 Rating: (412)
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This contribution was helpful to 1 thankful Users umencho

8/13/2010 3:15 AM	Rate (0)
bits Posts: 2 Rating: (0)	Thanks!When Iuse the "TCP Connection" in my case,It's OK.But when I choose "S7 Connection" ,It's an error. When I replace CP 343-1 Lean by CP 343-1 IT in HW,the "S7 Connection" is OK.So I doubted the CP 343-1 Lean can't choose "S7 Connection".
bits Posts: 2 Rating: (0)
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8/13/2010 9:31 AM	Rate (0)
umencho Diamond Expert Joined: 3/21/2006 Last visit: 3/14/2025 Posts: 10239 Rating: (1183)	Hello, Exactly.CP 343-1 IT supports S7 communication (could be server and client) CP 343-1 Lean couldn't be client. Look at this FAQ How do you configure an S7 connection for data communication between an S7-200 and an S7-300 or S7-400 on the Industrial Ethernet? to understand the logic about client and server... Best regards, Hristo Mihalev
	Last edited by: UMENCHO at: 8/13/2010 9:33 AM
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