Longxinzhiye’s Batching Controller provides local display and transmits flow data for control capability. Plug-n-flow computer also provides for single and dual stage batching processes for use on liquids and gases requiring temperature, pressure, and compressibility compensation. Unit features LED backlit display, capable of showing 4 parameters simultaneously, and 8 expansion slots that accommodate electronic modules for I/O and communications options.
(Archive News Story – Products mentioned in this Archive News Story may or may not be available from the manufacturer Longxinzhiye.)
Hoffer Flow Controls, Inc. is proud to introduce the Nova-Flow Batching Controller, one in a series of new “plug-n-flow” computers now available at Hoffer. The Nova-Flow Batching Controller is suited for flow applications where precise measurement and control of batch quantities is required. The unit provides local display and transmits flow data for control capability. The Nova-Flow Batching Controller provides for both single and dual stage batching processes, for use on both liquids and gases requiring temperature, pressure, and compressibility compensation. Batching methods available include manual, auto, auto-continue and remote batching using standard Modbus protocol. Manual, timed, compensated, and auto prewarn methods are available for dual stage batching processes. The Nova-Flow Batching Controller and all Nova-Flow computers have eight expansion slots to accommodate electronic modules, which provide I/O and communications options. You can choose from several optional modules to best suit your application needs. Configuration of the basic unit and the modules is implemented using Windows? based software, which is included with the unit.
Designed and manufactured by Hoffer Flow Controls, the Nova-Flow is available in several designs in addition to the Batching Controller. Through the use of a system architecture, previously seen only on more sophisticated and costly devices, the Nova-Flow is also available as a rate indicator/totalizer, a mass flow computer, and an energy calculator.
The btching controller customers main benefit with this new design is his ability to purchase only what he needs, when he needs it. For more information on the Nova-Flow Series of Flow Computers please contact.
Watch the video related to modbus
This is an example of Modbus (ASCII mode) message tests, performed with SOLO (Automation Direct)process controllers and configuration software. This software allows you to send Modbus test messages and see the response from the Modbus slave device(s).
Help answer the question about modbus
Source Code for VB6, Modbus reading?Does somebody knows where can I find some source code for reading from a modbus device, using VB
Thanks
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
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.
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.
Slavery is outlawed in most countries. You'd better watch what you say.
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.
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.
never heard of such a thing
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
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.
Modbus is the protocol developed by Modicon to talk with a
RTU (Remote Terminal Unit)
Your question does not make sense…….