RS-485 network is used in many industrial applications to gather data and control addressable motor drives, PLCs, cameras, time clocks, barcode scanners for process control and other factory automatic apparatus.
RS-485 devices can be connected to a computer … Read more
ZigBee is an open wireless standard for low-rate networks. It is an IEEE standard 802.15.4 protocol. The physical layer radio operates at 2.4 GHz band carrier frequencies with direct sequence spread spectrum (DSSS). It supports a range of up to … Read more
Modbus is an open standardized communication protocol that was founded by Modicon. Initially it was designed for the communication among PLCs in industrial applications but it also gained significance use in building automation domain for instance in HVAC systems, DDCs … Read more
The commonly used fieldbuses are:
The Table below outlines the key features of popular Fieldbuses that are commonly used in Industrial Networking:
Ethernet plays an important role as a communication platform for automation systems. The Key strength of Ethernet is in its ability to run many protocols simultaneously on the same network. Ethernet enables flexibility, scalability and performance of industrial networks … Read more
Controller Area Network (CAN) is a serial communication protocol developed primarily for applications in the automotive industry. It is also capable of offering good performance in other time-critical industrial applications.
The CAN protocol is optimized for short messages and uses … Read more
Foundation fieldbus (FF) is an all-digital, serial, two-way communication system for industrial applications.
Foundation fieldbus specifications include two different configurations: H1 and HSE.
H1 FF communication system is mainly applied to distributed continuous process control; … Read more
Topology is an important property of fieldbus. It is employed in the selection and definition of the best and suitable physical layout of the fieldbus network. The physical layer of the fieldbus has to meet somewhat demanding requirements like immunity … Read more
Fieldbus can be defined as a digital, serial, multidrop, data bus for communication with industrial control and instrumentation devices such as sensors, transducers/transmitters, actuators, local controllers, etc.
Alternatively, Fieldbus can be defined as a digital, two-way, multidrop communication link … Read more
HART is an acronym for (High Addressable Remote Transducer). HART is implemented in two ways in industrial instrumentation networks:
Here serial communication data is superimposed onto a standard 4-20 … Read more
