s7-400 function modules and communicaton difference

muds

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• Sep 20, 2014

• #1

hi all,,!

i want to know that what is difference between function module and communication processor..
i just want to use simple i/0 modules and cpu s7-400 , n interface to my computer n nothing else,

thnks in adavance.

 

KalleOlsen

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• Sep 20, 2014

• #2

Since you just want to use 'simple' I/O, you don't need to worry about functon- and communication modules or -processors.

Kalle

 

muds

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• Sep 22, 2014

• #3

u mean i didnt need IM and communication modules? just use PS,cpu i/o modules,,,? and can i connect my PC to cpu for proramming without these modules?
thanks

 

JesperMP

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• Sep 22, 2014

• #4

muds said:

u mean i didnt need IM and communication modules? just use PS,cpu i/o modules,,,?

Click to expand...

For a single rack, you just need the backplane rack, PSU, CPU and I/O modules.

muds said:

and can i connect my PC to cpu for proramming without these modules?

Click to expand...

You can program the CPU by its onboard ports. Btw, chose a CPU with onboard PN port.

 

muds

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• Sep 22, 2014

• #5

thanks JESPER.its clear now.