With industrial automation process control theory and computer technology are developing rapidly, and the industrial automation process control system reliability, complexity, and improve sexual function, the system's maintainability, the friendly man-machine interface, data can be analyzed manageability and other aspects of growing high demand, the company over the years in power, chemicals, metallurgy, paper, environmental and other automated control of successful experience, fully utilizing network communications technology, computer hardware, embedded systems technology, configuration software and database technology to upgrade the overall decentralized control systems to the technical level, and continuously enrich covered by the system, launched a Web-based automatic control system -- the DLCS-1000 system.

1. System features

    DLCS-1000 control system the most important feature is its control layer for the DCS, PLC scene tier, distributed control systems with the advantages of DCS and PLC programmable control of the dispersion and flexibility :

    DCS system's main features : full function; High reliability; Open systems easy expansion; Using a secure and reliable network communications technology; With comprehensive and professional, man-machine dialogue functional strong; Management ability.

    PLC's main characteristics : IO module mature reliable, fast and flexible portfolio; Excellent compatibility; Programming is simple and generation. PLC Systems will be good industrial real-time sequence control, access control, calculators control stepper control function; To complete the analog-digital conversion, data processing, communications networking, real-time monitoring and other basic functions.

2. Product characteristics

Redundant control unit XCU using 32 main processor

Redundant Ethernet network communications, communication speed 10/100 Mbps

Scanning up to the implementation cycle 0.25us, network data refresh cycle up to 0.1s

A large capacity can be expanded storage space, user-friendly applications for the extension

A high degree of reliability, stability, real-time

The focus, visualization graphics configuration mode

IEC 61131-3 standard application instructions, and control algorithm

Open architecture, with management-level communication

Reliable online programming, user-friendly interface to facilitate the ability to change parameters online

With strong data processing capability. Interactive convenient, fast and reliable

Controller with Internet capabilities for distributed control system

With Remote I / O functions, can save a lot of wiring costs, transmission speeds up to 2.5Mbps

Has the self-diagnosis, information and warning indicator

3. System Components

4. Communications network

Using mainstream hardware business of high-speed, high-performance communications networks -- rapid industrial Ethernet

Based on the international standard, open communication network, compatible IEEE802.3 and TCP / IP protocol

Standard network structure of the system to ensure that the expansion and upgrade capability

All sites have a direct and real-time communication network connected, no communication gateways

Every 0.1 seconds to refresh the 64,000 point high-speed processing capability

Advances / s or a 100 megahertz / s transfer rate

Enhanced real-time communication

The use of standard Ethernet twisted-pair or coaxial cable or fiber optic connector

The largest nodes 250

Using physics, dual-redundant logic

Using star, bus or virtual-ring network topology

Distributed processing unit Specifications

The control unit module XCU-net XCU-net as the main controller algorithm. The low-power configuration IPC motherboard, the expansion of the two 10Mbps dual LAN, loading Windows CE embedded operating system, running OnXDC algorithm and equipment control procedures. Be redundant configuration.

Common I / O module

IO expansion modules for the expansion IO module, the number of optional expansion IO : 4,8

8-channel analog input module input signal : + /-10V, + /-20 mA

5 channel thermocouple input module input signal : + /-150mV signal thermocouple

8-channel RTD input module input signal : Pt100, Cu50, Ni120 thermal resistance signal

4-channel analogue output module output signal : 0 ~ 20 mA, 4 ~ 20 mA, + /-10V

16-channel isolated digital input module input voltage : 3.5V ~ 30 V

16-channel isolated digital output module, 16-channel isolated digital output module

System software

DLCS-1000 Chinese Windows-based software development, user friendly interface, all commands are translated into visual image of the function of icons, the mouse can be easy to operate, simple to operate more convenient.

Software Features

Software environment : Chinese Windows 2000/NT

Using multi-tasking, multi-threaded, 32-bit code

Using real-time database

Configuration Control Strategy IEC-61131-3 standard

High-resolution, the resolution of 1280 x 1024 or 1600 × 1200

The man-machine interface software fully consistent with the Windows graphical interface, the real interface, easy to learn and use.

Flowchart picture

Flowchart screen is the process images in real-time monitoring of simulation, flow chart based on the configuration of information and technology operations, the picture of dynamic updating various objects (data, graphics, trend).

Real-time trends and historical trends

According to the configuration of information and technology operations, in a certain time interval record data points, dynamic updating trends, select Print trend of history.

Alarm Summary

Alarm Summary of the report under the conditions set on running state and automatically record the alarm information, and issued an audible alert signal. Alarm list can show that the current and historical information to the police, each message may show : alarm time, place, description, the police nature of the contents.

Statements

The required data on the configuration statements by regular or trigger events generated data can print statements recorded and analyzed.

Diary

Work log to record the operator of the system's operation, the operation every step of the operating system have recorded, and these records diary form. Diary of technical staff analyze problems, identify the cause of the malfunction provide great help.

System security

Each operator to the system according to their login names and passwords, the system according to the identity of the operator automatically set its own authority to prevent the abuse of power to operate the factors of insecurity, thereby ensuring system security operation.

Engineer functions

Engineer configuration screen

Within the framework of the Cabinet adopted nine 2.0mm thick plate bending forming materials and the use of plug-and welding steel double combination forming connections, to ensure the strength-lifting strength. The enclosure structure formation enclosed air circulation to prevent outsiders dust, moisture, corrosive gases damaged electrical components.