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'Siemens PLC protocol'
1998\11\19@133609 by enesys - Ing. en sistemas

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I need to foun information about the protocol used for the programer port in
the Siemens SIMATIC S5 PLC. I search and can«t found nothing. The only thing
i need is read and write datawords from the siemenes memory from a PC.

Somebody know some good for that?

Thanks a lot.

German Gentile

1998\11\19@134437 by WF AUTOMACAO

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Genesys - Ing. en sistemas wrote:
>
> I need to foun information about the protocol used for the programer port in
> the Siemens SIMATIC S5 PLC. I search and can«t found nothing. The only thing
> i need is read and write datawords from the siemenes memory from a PC.
>
> Somebody know some good for that?
>
> Thanks a lot.
>
> German Gentile

I think that is not a open protocol!

1998\11\19@134632 by Harrison Cooper

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I'm doing a project with a S95, but I am not sure if its the same.  I did
use a S5 some years ago, and might have the manual hiding someplace.  I'll
look and see if I can find any protocol data for downloading.


This might help as well, since I am using a TotalControl QuickPanel, and it
uses the programming port for interfacing

       RS232C,9600baud,8 data bits, even, 1 stop bit, no handshake

       also, it needs a current feedback loop in the cable (per
TotalControl specs on the interface cable)

       I've emailed them to ask if they have a document describing the
protocol since they do the interfacing

1998\11\19@213312 by Allan Hopkins

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Get a copy of the of CPU 943 or CPU944 plc manual. It has spec's on the
programming port.  You will need a current loop converter box, either from
siemens or another company like B & B elec.
Everything is done with datawords, the 944 can handle 32 bit. The others can
only handle 32 bit with special function blocks.

Allan

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