Why should need S7 1500 if If ET200SP have all these features?

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Split from ET200SP vs 1200.

Hi JKV,

The 1500 CPU is much powerful than ET200SP series CPU .e.g.

If you look at the performance data of the CPU's and compare them, what do you find? Top end 1500 CPU's have multiple network interfaces + Profibus integrated. Also the amount of work memory is much greather than the low end. Also if you compare the bit-performance time between the CPU's, you will see that 1518 is 60 times faster processing time, that 1511 CPU. All of AT200SP CPU's are low end 1500 CPU's.

1510-1PN (ET200SP)

1511-1PN

1511C-1PN

1512-1PN (ET200SP)

1512C-1PN

1513-1PN

1515-2PN

1516-3PN/DP

1517-3PN/DP

1518-4PN/DP

Then there are Technology CPU's also. These CPU's allow a regather number of connections, than regular CPU's and much more, that regular CPU's can't offer.

1511T-1PN

1515T-2PN

1516T-3PN/DP

1517T-3PN/DP

And after these there are Multifunctional platform CPU's that can be programmed with C/C++.

Redundant CPU's and High-availability CPU's that were already mentioned.