Industrial control system ICs

Industrial control system Industrial Control System

Abstract ： This article focuses on what is ICS, What is industrial control network , as well as ICS The architecture and ICS Main equipment deployment , See below for the auspicious text .
keyword ：ICS, Industrial control network

What is? ICS

1. ICS Process evolution
   ICS Process evolution ： Manual work -> Semi automatic mechanization -> Automatic mechanization , At present, people often say ICS It refers to the process of automatic mechanization ICS.
2. ICS form
   ICS Usually refer to SCADA,DCS, Process control system ,PLC And other control systems .
3. ICS The main function of
   The control instructions and data sent by the operation station （ If you open or close a valve ） Push to the control field actuator , At the same time, collect the status information of the control site and feed it back to the operation station , And through numbers , Display to operators in the form of graphics .（ thus it can be seen stuxnet The infection should be ICS）

What is industrial control network

1. The role of industrial control networks
   Industrial control network is a kind of industrial control network production process And automation Control system Through a variety of Communication equipment Organized Communication network . It is the network part of industrial control system .
2. Composition of industrial control network
   Including communication nodes （ Such as upper computer , Controller, etc ）, Communication network （ Such as fieldbus , Ethernet and various wireless communication networks ）, Communication protocol （ Such as Modbus,PROFIBUS etc. ）.

What is? ICS The architecture of

1. ICS framework
   A typical ICS The architecture includes ： Field equipment level , Field control layer , Process monitoring layer , Production management layer and enterprise resource layer , See the picture 1.

Hierarchy name	effect
Field equipment level	It is mainly used to collect analog and digital quantities of field instruments , Including pressure , temperature , Humidity, etc , Such as PLC, valve , Instruments, etc （ Under the controller , So it is called lower computer ）
Field control layer	The main Through the controller Collect the data of each field instrument , Monitor the operation status of the instrument , Such as SCADA controller ,DCS controller ,PLC controller
Process monitoring layer	be based on IT Computer computing environment , Data acquisition of controller , Processing and presentation ; Control the business logic ; Analyze historical production data . Like a bunch of computers , Be responsible for issuing instructions to the controller （ Located on the controller , So it is called upper computer ）
Production management	Processing of production plan , Focus on the management of planned tasks
Enterprise resource layer	Mainly based on all kinds of enterprise information , It belongs to the traditional information system

ICS What are the important equipment

1. Data acquisition and monitoring control system （Supervisory Control And Data Acquisition,SCADA）
   It was born to meet the needs of long-distance distributed industrial production system , Integrated data acquisition system , Data transmission system and human-computer interaction equipment , The on-site operating equipment can be monitored and controlled remotely , To realize data acquisition and equipment control functions .SCADA It's made up of three parts , Main terminal unit , Communication system and remote terminal unit .
2. Distributed control system （Distributed Control System,DCS）
   It's a controller .
3. Fieldbus control system （Fieldbus Control System,FCS)
4. Safety instrument system （Safety Instrumented System,SIS）
5. PLC （Programmable Logic Controller,PLC）
   No longer limited to logic control , It is in motion control , Process control and other fields also play an important role .
6. Remote terminal control unit （Remote Terminal Unit,RTU）
7. Human computer interface equipment （Human Machine Interface,HMI）

Reference resources 《 Industrial Internet Security 》