Comments for Modbus http://www.nmodbus.com Sat, 05 Dec 2009 07:10:59 -0800 http://wordpress.org/?v=2.8.6 hourly 1 Comment on JetNet 5010G by }}}~~~~> http://www.nmodbus.com/2009/12/jetnet-5010g/comment-page-1/#comment-63 }}}~~~~> Sat, 05 Dec 2009 07:10:59 +0000 http://www.nmodbus.com/2009/12/jetnet-5010g/#comment-63 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

]]> Comment on JetNet 5010G by samir281071 http://www.nmodbus.com/2009/12/jetnet-5010g/comment-page-1/#comment-65 samir281071 Fri, 04 Dec 2009 16:22:41 +0000 http://www.nmodbus.com/2009/12/jetnet-5010g/#comment-65 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.

]]> Comment on JetNet 5010G by sadasivam s http://www.nmodbus.com/2009/12/jetnet-5010g/comment-page-1/#comment-67 sadasivam s Fri, 04 Dec 2009 14:12:43 +0000 http://www.nmodbus.com/2009/12/jetnet-5010g/#comment-67 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.

]]> Comment on JetNet 5010G by rolando m http://www.nmodbus.com/2009/12/jetnet-5010g/comment-page-1/#comment-68 rolando m Fri, 04 Dec 2009 07:45:38 +0000 http://www.nmodbus.com/2009/12/jetnet-5010g/#comment-68 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…….

]]> Comment on JetNet 5010G by 2 http://www.nmodbus.com/2009/12/jetnet-5010g/comment-page-1/#comment-64 2 Thu, 03 Dec 2009 15:27:38 +0000 http://www.nmodbus.com/2009/12/jetnet-5010g/#comment-64 Comment on JetNet 5010G by kisame http://www.nmodbus.com/2009/12/jetnet-5010g/comment-page-1/#comment-62 kisame Thu, 03 Dec 2009 06:33:50 +0000 http://www.nmodbus.com/2009/12/jetnet-5010g/#comment-62 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.

]]> Comment on JetNet 5010G by Mad Dog http://www.nmodbus.com/2009/12/jetnet-5010g/comment-page-1/#comment-66 Mad Dog Tue, 01 Dec 2009 21:16:36 +0000 http://www.nmodbus.com/2009/12/jetnet-5010g/#comment-66 never heard of such a thing never heard of such a thing

]]> Comment on JetNet 5010G by sh_sunsea http://www.nmodbus.com/2009/12/jetnet-5010g/comment-page-1/#comment-61 sh_sunsea Tue, 01 Dec 2009 21:11:11 +0000 http://www.nmodbus.com/2009/12/jetnet-5010g/#comment-61 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.

]]> Comment on JetNet 5010G by sh_sunsea http://www.nmodbus.com/2009/12/jetnet-5010g/comment-page-1/#comment-60 sh_sunsea Tue, 01 Dec 2009 20:51:18 +0000 http://www.nmodbus.com/2009/12/jetnet-5010g/#comment-60 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.

]]> Comment on JetNet 5010G by IvanPicCory http://www.nmodbus.com/2009/12/jetnet-5010g/comment-page-1/#comment-58 IvanPicCory Tue, 01 Dec 2009 14:11:55 +0000 http://www.nmodbus.com/2009/12/jetnet-5010g/#comment-58 This is a great project. Will you be so kind to share the project files with me. I want to do some home automation, and this would be ideal. Thanks for posting your video. It is really good to see pic micro projects. I am new to pic micro's and already admire their power. Thanks Ivan This is a great project. Will you be so kind to share the project files with me. I want to do some home automation, and this would be ideal.
Thanks for posting your video. It is really good to see pic micro projects.
I am new to pic micro’s and already admire their power.
Thanks
Ivan

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