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Step 7 program backup




There are general guidelines for connecting, downloading and uploading from an S7-300 or S7-400 PLC.


In this course we will be looking at how to carryout program backup and download onS7 300 or S7 400 plc.



There are three major types of programming cables.



1 The CP5512 card in a PCMCIA slot.


2 The PC Adapter using a serial or USB connection.


3  Ethernet cable.




The CP5512 card and the PC Adapter can communicate on either an MPI or PROFIBUS port. Note that PROFIBUS is labeled as DP on the Siemens connection ports.

These cables can piggyback on existing connectors. Be aware that the PC Adapter draws its power to work from the connection port so check the power LED for proper operation.


The CP5512 card draws its power from the computer.

For Ethernet T C P slash IP   uses a standard Ethernet cable from the computer to a CPU with an Ethernet port.  or a network switch that is already attached to the PLC network.









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