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S7-300 <---> S7-200 via MPI

5/2/2010 12:03 AM	Rate (0)
Tomy Master Platinum Member Joined: 5/4/2009 Last visit: 12/21/2025 Posts: 916 Rating: (40)	Dear Friends... I need to connect CPU313C-2DP with CPU224XP via MPI. Would you please show the way how. any links, program samples, wiring configurations and manuals I will be more than greatfull. Thank you in advance. Tomy the master.
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5/2/2010 12:04 AM	Rate (0)
Tomy Master Platinum Member Joined: 5/4/2009 Last visit: 12/21/2025 Posts: 916 Rating: (40)	Sorry... the CPU is CPU314C-2DP. Warm regards. tomy.
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5/2/2010 7:33 AM	Rate (1)
umencho Grandmaster-Expert Joined: 3/21/2006 Last visit: 10/16/2025 Posts: 10239 Rating: (1183)	Hello Tomy, look at http://support.automation.siemens.com/WW/view/en/23548936 Best regards, Hristo Mihalev

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This contribution was helpful to 1 thankful Users Tomy Master

5/2/2010 6:29 PM	Rate (0)
Tomy Master Platinum Member Joined: 5/4/2009 Last visit: 12/21/2025 Posts: 916 Rating: (40)	Thank you Mr. Hristo... The information that provided is so good, but I need one more information. Would you please show the configuration of the MPI cable. Warm regards. Tomy.
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5/2/2010 8:25 PM	Rate (0)
umencho Grandmaster-Expert Joined: 3/21/2006 Last visit: 10/16/2025 Posts: 10239 Rating: (1183)	Hello again, Connection can be done using the MPI cable, or alternatively with profibus cable and connectors, or even with your own home-made RS-485 cable (for a short, point-to-point run). About using SFC67 (X_GET) and SFC68 (X_PUT) look at the upper FAQ. The hint is you don't need to "set" something in netpro if will use both upper SFCs. he PLC requiring data from another PLC can simply run the X_GET. There is no programming on the other PLC. One of the parameters for X_Get VAR_ADDR which is the remote data address where you want to get data from. Just remember there has limitation of quantity of exchanging data and limitation in speed. best regards, Hristo Mihalev

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