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nm_nid
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Join Date: Feb 2011
Posts: 15

Protocols and Layers

05/24/2011 5:11 AM

What is the protocols and on which layers do the following operate:

1. IEC - 103

2. IEC - 101

3. MODBUS

4. PROFIBUS
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nm_nid
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Join Date: Feb 2011
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#1

Re: Protocols and Layers

07/16/2011 8:57 AM

The layer means the layer of network architecture either in term of OSI or TCP/IP model..like application layer , transport layer etc. Which layer does it work on?
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Iris
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#2

Re: Protocols and Layers

07/17/2011 3:06 PM

Modbus:

http://jamod.sourceforge.net/kbase/protocol.html
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nm_nid
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#3
In reply to #2

Re: Protocols and Layers

07/19/2011 12:19 PM

thanks a tonne :-) but if its application layr protocol, thn what is MODBUS TCP. As TCP is a protocol of transport layer, IP is of network layer, it does have MODBUS IP???
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Iris
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#4

Re: Protocols and Layers

07/23/2011 5:21 PM

The diagram shows Modbus RTU, Plus and TCP:
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