Introduction to Digital Communication
In the design of large and complex digital systems, it is often necessary to have one device communicate digital information to and from other devices. One advantage of digital information is that it...
View ArticleNetworks and Busses
This collection of wires that I keep referring to between the tank and the monitoring location can be called a bus or a network. The distinction between these two terms is more semantic than technical,...
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Data Flow
Buses and networks are designed to allow communication to occur between individual devices that are interconnected. The flow of information, or data, between nodes can take a variety of forms: With...
View ArticleOptical Data Communication
A modern alternative to sending (binary) digital information via electric voltage signals is to use optical (light) signals. Electrical signals from digital circuits (high/low voltages) may be...
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Network Topology
If we want to connect two digital devices with a network, we would have a kind of network known as "point-to-point:" For the sake of simplicity, the network wiring is symbolized as a single line...
View ArticleNetwork Protocols
Aside from the issues of the physical network (signal types and voltage levels, connector pinouts, cabling, topology, etc.), there needs to be a standardized way in which communication is arbitrated...
View ArticlePractical Considerations
A principal consideration for industrial control networks, where the monitoring and control of real-life processes must often occur quickly and at set times, is the guaranteed maximum communication...
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