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S7-300 cpu314 PLC

11/8/2009 8:47 AM	Rate (0)
johneedw Posts: 2 Rating: (0)	Dear, i've a new siemens s7-300 cpu 314(empty) and i've a similarold plcwith a software . i want to copy the software from the old plc to the new one. i dont have a complete idea about interfacing witha desktop pcto execute this operation. of course, i've step7-lit v3.0 incl sp2 but i dont know the proper cable to do copying of software! can i use a direct DB9-DB9 serial cable with a proper pin assignment?.. or i must use such cable with MPI adapter?...help me plc
johneedw Posts: 2 Rating: (0)
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11/8/2009 11:07 AM	Rate (0)
IBN-Service Posts: 8946 Rating: (1000)	johneedw can i use a direct DB9-DB9 serial cable with a proper pin assignment?.. or i must use such cable with MPI adapter?...help me plc NO! You need a MPI-Adapter! Perhaps, you also must change the hardware configuration if the new CPU is different from the old one!
IBN-Service Posts: 8946 Rating: (1000)
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11/8/2009 11:41 AM	Rate (0)
johneedw Posts: 2 Rating: (0)	thanx 4 reply.. but when i run step7 lite, it ask me to choose either PC adapter/profibus or PC adapter/MPI.. please what is the difference between profibus and MPI interface? also..i need the circuit diagram for the mpi adapter because i cannt get it ! waiting ...
johneedw Posts: 2 Rating: (0)
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11/8/2009 2:19 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (1000)	johneedw thanx 4 reply.. but when i run step7 lite, it ask me to choose either PC adapter/profibus or PC adapter/MPI.. please what is the difference between profibus and MPI interface? also..i need the circuit diagram for the mpi adapter because i cannt get it ! waiting ... If you have no DP, than you need MPI. The standard CPU314 does not support Profibus. But MPI will be supported by any CPU. You can buy an adapter easily by siemens. Or also at the shop where you got the Step7lite..
IBN-Service Posts: 8946 Rating: (1000)
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11/8/2009 7:29 PM	Rate (0)
Ayman Elotaify Platinum Expert Joined: 5/28/2008 Last visit: 8/31/2025 Posts: 4522 Rating: (843)	Dear johneedw SIMATIC S7, PC ADAPTER USB F. CONNECTION OF S7-200/300/400 C7; WITH USB-CABLE (5M) CAN BE USED UNDER WIN 2000/XP part number: 6ES7972-0CB20-0XA0 you can contact Siemens office in your place. regards,
	Ayman Elotaify
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