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1 week ago

SCADA Systems – A Few Things for the Beginners to Know

SCADA refers to a centralised system, which is meant to monitor and control complex industrial systems distributed over an extensive area. A typical SCADA system can act as a decisive link between an industrial plant and its distribution network. Say for example, a typical SCADA system will ensure adequate functioning of a power plant and the distribution network of national power grids.

SCADA control functions

The host control functions of SCADA systems are usually restricted to supervisory level interventions. Say for example, a typical PLC system may be used to control the flow of coolant to a section or the plant, whereas a SCADA system will enable the operators to alter the set points to plan the flow and set alert conditions to be recorded. The major advantage of SCADA is that it enables remote administration, which when integrated with PLC makes management of a large plant just a breeze.

SCADA subsystems

A typical SCADA system comprises of many subsystems as;

An HMI (Human-Machine Interface), which is an apparatus that processes data for the human operators to take informed decisions.

A computer system to acquire data and process it to send commands.

Remote terminal unit/s (RTUs), which ideally connects to the sensors to access the signals and convert it to digital data to be sent to the supervisory system.

Programmable Logic Controllers (PLCs), which are field devices for various purposes that can be customised based on purpose.

Communication infrastructure to connect the supervisory system to remote terminal units to access data and transfer information.

SCADA systems are usually comprised of a widely distributed database that is known as tag database. Such databases are made of elements called tags or points. An element represents a single input or output (I/O) value, which is monitored or controlled using the central system.

Overtime, SCADA systems are largely advanced and now there are web-based and cloud-based SCADA applications to ensure more flexibility, customisability, and these also eradicate the previous restrictions on geographical restrictions, time constraints, and accessibility.

 

3 weeks ago

Scada- The New Age Automation Solution

What is SCADA?

SCADA stands for Supervisory control and data acquisition. It is a remote monitoring and control system that works with the help of coded signals through communication channels. The system uses usually a single communication channel for every remote station.

USES

SCADA finds its use in the core of modern industry where it basically works as an industrial automation control system. It is used in the many industries. Some of them are as follows:

 Food and beverage

 Energy

 Oil and gas

 Recycling

 Transportation

 Water and waste water

 Manufacturing

 Power

SCADA systems are used in large as well big industrial units both in private and public sector undertakings. This is possible because these systems are highly flexible. They can be simple and complicated which makes them fit for various industrial automation systems that may be needed for large and complex projects.

In fact SCADA has become indispensable to all types enterprises ad are adding in the smooth running of the operations. It is implemented in supermarkets, waste water treatment plant, refinery and even in many households.

How does it work?

Several hardware and software elements are implemented to monitor, accumulate and process data. With the help of this automated system, it is possible to interact and operate variety of machines and wide range of devices including motors, valves, pumps and more. These machines and devices are connected to HMI (human-machine interface) software.

All events are recorded in a file which makes it easier to track down any errors in case of a snag.

Information can be provided either manually or through sensors which are then sent to RTUs (remote terminal units) or PLCs (programmable logic controllers).  The SCADA software loaded in computers then processes this information. The raw data is analyzed to help operators derive meaningful information that helps them to eliminate waste and make the operations more efficient.

Since the manufacturing processes are refined there is savings in terms of money and time.

 

4 weeks ago

Scada- The New Age Automation Solution

What is SCADA?

SCADA stands for Supervisory control and data acquisition. It is a remote monitoring and control system that works with the help of coded signals through communication channels. The system uses usually a single communication channel for every remote station.
 
USES

SCADA finds its use in the core of modern industry where it basically works as an industrial automation control system. It is used in the many industries. Some of them are as follows:

 Food and beverage
 Energy
 Oil and gas
 Recycling
 Transportation
 Water and waste water
 Manufacturing
 Power

SCADA systems are used in large as well big industrial units both in private and public sector undertakings. This is possible because these systems are highly flexible. They can be simple and complicated which makes them fit for various industrial automation systems that may be needed for large and complex projects.

In fact SCADA has become indispensable to all types enterprises ad are adding in the smooth running of the operations. It is implemented in supermarkets, waste water treatment plant, refinery and even in many households.

How does it work?

Several hardware and software elements are implemented to monitor, accumulate and process data. With the help of this automated system, it is possible to interact and operate variety of machines and wide range of devices including motors, valves, pumps and more. These machines and devices are connected to HMI (human-machine interface) software.

All events are recorded in a file which makes it easier to track down any errors in case of a snag.

Information can be provided either manually or through sensors which are then sent to RTUs (remote terminal units) or PLCs (programmable logic controllers).  The SCADA software loaded in computers then processes this information. The raw data is analyzed to help operators derive meaningful information that helps them to eliminate waste and make the operations more efficient.

Since the manufacturing processes are refined there is savings in terms of money and time.

 

3 months ago

The first steps in understanding Modbus

Electronic devices communicate with each other by using a language that is termed as Modbus. Truly speaking, it is a communication protocol or messaging structure, which is not the language itself but the method of communication. Devices that are connected to the same network can communicate with its help. This is widely perceived in SCADA systems where the communication between the remote computer and the RTUs are performed by it. Since the computer, which can be a PC touch screen, is seeking information from the RTUs, the computer is the Master and the RTUs that supply the information are considered Slaves.  Indeed, this is what has been laid down in the protocol. There can be only a single master that has the ability to look after 247 slaves. Being the Master, it can command the Slaves through written information to the salves that have to act accordingly.

RS-485 – Modbus RTU

Things are likely to get a bit technical but don’t worry, it will be simplified as much as possible. RTU is the most popularly used network that has a Master and a single or many slaves but not more than 247. Each slave is designated by a unit number that corresponds to a unique device address of 8 bit. The Master sends information packets that bear the Slave’s address for whom it is meant. As soon as the packet reaches the slave, after verifying the address, it is its turn to respond but within a specified time.  If no response is received by the master within that time it considers the activity as a no-response error.

What are registers?

The information exchange that comprises of writing and reading data is compiled in 16 bit data pieces which are known as registers. The register is usually a 16 bit integer that may or may not be signed. If a floating point of 32 bit integer is required it is obtained by combining two registers. The values are read in the form of a pair of registers.  The Holding Register is most commonly used or writing as well as reading. There is another read-only register named Input Register.

What are coils?

Coils and discrete input are registers but with exceptions to the standard 16 bit registers because these are of a single bit only. Discrete inputs are read-only type while coils can both be read and written. Coils are normally related to relay outputs. The types of registers to be included in a system depend on the manufacturer.

Function codes

The function code is responsible in determining which type of register is being addressed by a specific Modbus request.  “Read holding registers” is denoted by the numerical code 3 and 1 denotes “may read”. To write a “single holding register” you have to use 6 as the function code. For writing one or more holding registers function code 16 has to be used.

A Modbus RTU (RS 485) can have one Master only and if the gateway is the Master, you can have one gateway only.

 

5 months ago

Digital Devices That Work With Software and Perfect Features

Technology is grabbing the whole world under it as it already has gained much space that now most of the people cannot even walk a single step without it. There are many technical devices that are working with the help of software as software is the main part that helps in making the device efficient with its working and also with the help of that many features and installed in it which helps in making the device perfect. Software’s are the main part of the device that is used in many different ways and in many different fields as it helps in making the work easy and frequent.

High quality product with competitive technical services:

There are many digital services that run efficiently with the help of software and that make its working perfect with technical issues.  PC Touch Screen also works with the help of software as software gives the proper commands to the device to function like the setting is made and works automatically according to your need and requirements. There are many companies that manufacture with these products and also many of the features are installed in it so that you can make the best use of it.

They also available with SCADA System and this is the system that is operated with the help of coding signals over the communication channels as that helps in providing the control over the remote equipment and you can efficiently make the work according to your requirements. They also offer with many technical services that help in working of the device efficiently without any technical issuers. The most important role in the device is of the software as it is only thing that completes the device with efficient working and because of software it has many features that are perfect and technical.

 

5 months ago

An Introduction to SCADA

Checking the status of an automation system over a web page is convenient and often mandatory in this fast pace and repetitive changing world. Turning a light or valve on or off from a computer at your home or office may save you time and money in comparison to traveling out to favorite sites for status and maintenance. You can easily save a trip and spend more time with your family.

Easy Configuring of Web SCADA System

If you have an existing application that involves components like PLC and input/output modules can bring your system to a local PC based SCADA control and monitoring system. You can easily configure the web SCADA system to pull the data from the controller and data acquisition units.

You can easily configure controls that can monitor things like temperature, valves and conveyor status. You can also use a web server like web publisher to make the SCADA system accessible. In SCADA software, drivers are provided which will enable you to communicate with various PLCs, data acquisition modules and devices. Installation of web server allows serving the SCADA system out so that web clients on remote machines can access the data over a web page.

HMI SCADA – Now Deployed on Mobile Devices

It has been observed that poorly designed HMIs have been cited as a cause of unnecessary downtime, accidents along with numerous psychological and physical disorders for machine operators and others. Another consequence which is often ignored includes accidents that occur as a result of poor HMI SCADA design, which may be much more severe than those caused by error without machine assistance.  


A better HMI system leads towards an improved bottom line; it is high time to look for some salient features for fetching a high performance system. The key features in association with a high performance system include data modeling, intelligence and easy accessibility. Present technology allows an HMI system to be deployed on mobile devices as well!

 

5 months ago

An Advanced Way to Supervise and Monitor Remote Appliances via SIELCO SISTEMI Software

SCADA Software or Supervisory Control and Data Acquisition software are a system to control and monitor remotely with the help of coded signals operating through communication channels. Whereas, HMI is the operating panel of the controller and it comprises of a LCD screen to display the text and a numeric keypad for entering data into the application. SIELCO SISTEMI offer many products to build many SADA HMI applications for automation of building and industry. Their offer is conducted for solution providers, plant managers and system integrators, operators of public utility networks and manufacturers of industrial machinery.

Uniqueness and Reliability of SIELCO SISTEMI

The strength of SIELCO SISTEMI lies on a high technology and price-competitive product portfolio in addition to a timely as well as a thorough technical assistant service. It contributes in the development of solutions for integrated hardware or software which has a wide range of including supervisory control of industrial plants. The products are highly reliable and are much easy to be integrated with each other.

The offered software packages are convenient, flexible and easy to use and are used in the development of Software SCADA HMI applications along with a support of Web Server. The services and cooperation proposals of SIELCO SISTEMI can also be offered directly through their network of providers and distributors of solution.

Customer Service of SIELCO SISTEMI

Needs of the customers are much sensible and the most distinctive feature of their way to do business. Their list of services include consultancy in the design phase, training and upgrading courses, project development, assistance during start-up, support after sales in addition to contracts for technical assistance. They also offer their clients with a service of customized technical support to provide access to the best expertise for resolving any issue much rapidly. The qualified and highly competent team is always ready to answer to all the simple as well as complex queries of the clients.