Comments on: High-power PoE strengthens Industrial Ethernet as the leading network http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/ Mon, 30 Aug 2010 03:17:03 -0700 http://wordpress.org/?v=2.8.6 hourly 1 By: Mad Dog http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/comment-page-1/#comment-10 Mad Dog Fri, 23 Oct 2009 20:17:02 +0000 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/#comment-10 never heard of such a thing never heard of such a thing

]]> By: sadasivam s http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/comment-page-1/#comment-11 sadasivam s Fri, 23 Oct 2009 17:02:12 +0000 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/#comment-11 An interface establishes a connection or boundary between the software and hardware. Say, if you want to access information about RAM an interface would provide the programming required to get the information displayed. Protocol provides a method to acquire the communication. When talking RS232/Rs485 you are identifying converters which manipulate modulation. For the quality of connectivity over distances you are indeed on the right track. RS232 coupled with Modbus will give you an overall better quality because the transmittion is sent over as plain form (text). Modbus is peer-to-peer but can perform over point-to-point and multidrop networks. An interface establishes a connection or boundary between the software and hardware. Say, if you want to access information about RAM an interface would provide the programming required to get the information displayed.

Protocol provides a method to acquire the communication. When talking RS232/Rs485 you are identifying converters which manipulate modulation.

For the quality of connectivity over distances you are indeed on the right track. RS232 coupled with Modbus will give you an overall better quality because the transmittion is sent over as plain form (text). Modbus is peer-to-peer but can perform over point-to-point and multidrop networks.

]]> By: }}}~~~~> http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/comment-page-1/#comment-7 }}}~~~~> Fri, 23 Oct 2009 03:02:57 +0000 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/#comment-7 Modbus allows for communication between many devices connected to the same network, Not just computers, but different devices Take a look at the wiki for exaples and more detailed info http://en.wikipedia.org/wiki/Modbus Modbus allows for communication between many devices connected to the same network, Not just computers, but different devices

Take a look at the wiki for exaples and more detailed info
http://en.wikipedia.org/wiki/Modbus

]]> By: samir281071 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/comment-page-1/#comment-9 samir281071 Thu, 22 Oct 2009 20:41:38 +0000 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/#comment-9 a "Modbus Splitter" allows two or more Modbus Masters to communicate with a network of one or more Modbus Slaves: Thus "Splitting" the network and allowing multiple Masters to communicate with a single network of Modbus Slaves. a "Modbus Splitter" allows two or more Modbus Masters to communicate with a network of one or more Modbus Slaves: Thus "Splitting" the network and allowing multiple Masters to communicate with a single network of Modbus Slaves.

]]> By: rolando m http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/comment-page-1/#comment-12 rolando m Thu, 22 Oct 2009 12:10:08 +0000 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/#comment-12 Modbus is the protocol developed by Modicon to talk with a RTU (Remote Terminal Unit) Your question does not make sense....... Modbus is the protocol developed by Modicon to talk with a
RTU (Remote Terminal Unit)
Your question does not make sense…….

]]> By: kisame http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/comment-page-1/#comment-6 kisame Thu, 22 Oct 2009 10:24:17 +0000 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/#comment-6 The hardware and wires are the same, Ethernet commonly uses Cat 5E wire and RJ-45 8 conductor connectors. They are the ones that look like an overgrown modular phone plug. Modbus is a communications protocol, and would not be the same protocol as what your home or office network is using to communicate between computers and printers even though it is Ethernet hardware and wiring. Modbus would commonly be used between a PLC and other devices such as an engine, turbine or generator controller (Many such devices exist) to gather data and take it back to a central HMI (Human-Machine Interface) or alarm annunciator. Some such devices can be controlled using Modbus as well. The hardware and wires are the same, Ethernet commonly uses Cat 5E wire and RJ-45 8 conductor connectors. They are the ones that look like an overgrown modular phone plug.

Modbus is a communications protocol, and would not be the same protocol as what your home or office network is using to communicate between computers and printers even though it is Ethernet hardware and wiring.

Modbus would commonly be used between a PLC and other devices such as an engine, turbine or generator controller (Many such devices exist) to gather data and take it back to a central HMI (Human-Machine Interface) or alarm annunciator. Some such devices can be controlled using Modbus as well.

]]> By: 2 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/comment-page-1/#comment-8 2 Thu, 22 Oct 2009 04:14:40 +0000 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/#comment-8 By: sh_sunsea http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/comment-page-1/#comment-5 sh_sunsea Tue, 20 Oct 2009 20:42:21 +0000 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/#comment-5 Slavery is outlawed in most countries. You'd better watch what you say. Slavery is outlawed in most countries. You'd better watch what you say.

]]> By: sh_sunsea http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/comment-page-1/#comment-4 sh_sunsea Tue, 20 Oct 2009 20:00:37 +0000 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/#comment-4 Modbus is a popular (and cheap/easy) protocol that all Schneider/Modicon PLCs speak. It is cheap because it is in the public domain and everyone has written drivers using that. Twidosoft and Twidosute (free downloads) botj contain Modbus drivers that can be configured, verified, and run with the Modicon PLCs. Modbus is a popular (and cheap/easy) protocol that all Schneider/Modicon PLCs speak. It is cheap because it is in the public domain and everyone has written drivers using that. Twidosoft and Twidosute (free downloads) botj contain Modbus drivers that can be configured, verified, and run with the Modicon PLCs.

]]> By: d3sus http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/comment-page-1/#comment-3 d3sus Tue, 20 Oct 2009 13:59:47 +0000 http://www.nmodbus.com/2009/10/high-power-poe-strengthens-industrial-ethernet-as-the-leading-network/#comment-3 Man great work,its relly admirable,I was wondering if i can get this project to have an idea on how to work with citect scada,iam a beginner i hope ill get better like you sumday :) ,Best of luck for the future,You have a fan of your work. Man great work,its relly admirable,I was wondering if i can get this project to have an idea on how to work with citect scada,iam a beginner i hope ill get better like you sumday :) ,Best of luck for the future,You have a fan of your work.

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