DCS For Paper Production

1. Software

1.1.Controller programming software: wicc 7.0 SP2 version

1.2.Upper monitoring software: wicc 7.0 SP2 version

1.3.Upper computer system software: Windows 10 Professional Edition

1.4.Program Programming Software:

The program is programmed using wicc 7.0SP2 software, the processor directly stores labels, structures and arrays, and automatically completes memory allocation/management. Users can easily implement "object-oriented" control programming, and no longer need to consider address allocation/management in programming; It has the following characteristics:

The PCS7 V9.0SP2 software configuration fully supports programming methods

• Ladder diagram

• Function Block Diagram (FBD)

• Statement Table (STL)

Structured Control Language (SCL)

1.5 Function screen

The HZDC-DCS series software combines a powerful processing engine with an intuitive user interface, developed using SIEMENS configuration software wicc 7.0SP2, which allows users to use an intuitive point-and-click interface.

The HZDC-DCS series software provides the following basic functions:

• Display dynamic process flow

• Refresh real-time data and status

• Control of liquid level, concentration, flow, pressure and temperature

• Adjusting valve manual automatic control

• On-off valve control

• Motor control (network control)

• Motor fault alarm, analysis, network reset, field reset

• Motor interlocking control

• Prepare group start and stop functions according to user process and equipment requirements

• Control of large equipment groups: such as the control of impurity separator, disc mill knife control, three-stage ventilation control, etc

• Level, concentration, flow, pressure, temperature PID loop parameters, range Settings

• Record and analyze historical data

• Various alarms, fault records, inquiries, analysis

• Various permission Settings for use

2. System hardware description

2.1 This system adopts SIEMENS controller S7-1500 series PLC:

（1）A network that can support communication

     Profinet

     Profibus

（2）Supports a maximum of 8 OS stations

（3）Programming language

     Ladder diagram

     Structured text

     Functional block

     Sequential function diagram

3.System master control unit

The paper workshop part of the scheme uses Siemens CPU S7-1500 series programmable controller, combined with network technology, automation control technology, computer technology, covering the security of large system, network expansion function, integrated demand side interface and large capacity information access function. The system can monitor and control the process variables of the whole process, meet the requirements of process control and scheduling strategy. Not only can complete the conventional single-loop control, but also has high-speed digital quantity processing, high-speed sequential event recording (SOE), programmable logic control and other special functions; The system scale changes flexibly, realizing the process control from one unit to the whole plant automation integration; The communication network of the system adopts industrial Ethernet, which conforms to the regulations of ISO/OSI and has the characteristics of TCP/IP open system. Network devices use peer-to-peer communication. You can add or remove network devices online without affecting the normal running of other devices. Using IEC-1131-3 international standard programming software and field equipment library to provide continuous control, sequential control and high-level programming languages. The application of industrial Ethernet open network, thus has a strong openness, can easily connect the host computer management system and other manufacturer systems. The engineer station can be connected to the main controller CPU over a network.

Field control station is a large-scale I/O processing system that deals directly with the field. It is a field control equipment with signal acquisition, loop regulation, logic linkage, sequence control and local operation functions. The field control station is composed of an operation station, a main control unit, analog and digital I/O modules, communication modules, power modules and cabinets for various types of signals.

It has the following characteristics:

Reduce response time and improve production efficiency;

Improve program cycle time;

Flexible memory card mechanism to use various project sizes;

Large archive space.