Technological Systems Control

The solutions for automation of technologic processes are based on a control system usually consisting of distributed control system, programmable automatic elements, safe systems and operators’ workplaces with application of the type SCADA/HMI.

The control system is designed according to various criteria, the most important of them being safety, reliability, availability as well as price.

The control system integrates the control of all the technological subsystems, including for example:

In chemistry and petro-chemistry
Destillation units
Heat exchangers
Scale systems
AC systems
In power industry
Boiler protection systems (BPS)
Automatic systems of burners(BMS)
Water management
Compressors stations
Fuel management
Turbine regulator and protections
Cooling towers
In pharmacy
Scale systems
Centrifuges, drying stations
Filling and packaging lines
Water treatment plants and laboratory
Detection of gas leakage
AC systems
The critical applications use systems with extended reliability and availability, reached by using the systems of the „fail-safe“ or „fault-tolerant“ type with redundant or TMR architecture.

The company UNIS is an engineering partner of the company TRICONEX, manufacturing programmable automatic units for critical processes with three-times redundant architecture. The systems were successfully applied in the Czech Republic, in Europe and Asia as electronic security systems in chemistry and mainly petro-chemistry, as well as for regulation and protection of turbines and automatic elements of burners. Frequently used safe systems also include Hima, Pros-safe (Yokogawa), Woodward, Siemens.

The manufacturers of distributed control systems most frequently applied by the company UNIS are the following:


Architecture of control systems

The basic strategy for setting the concept of the control system is the application of the open architecture principle. That means that the designed system has to support international standards for integration of control systems in the field of hardware interface as well as the communication protocols.

The integration is applied in all the hierarchical levels (process, control and information). On the process level, these are mainly the bus bars of the type Modbus, Profibus or Fieldbus Foundation.

On control level, most manufacturers support network communication of the Ethernet or fast Ethernet type with communication network protocol TCP/IP.

The connection of the technological control system with the information level is currently performed nearly exclusively using the OPC interface (OLE for process control). SCADA systems are used for small and medium applications (GE FANUC, WONDERWARE, WINCC and CONTROL WEB).

In petro-chemical industry or in power industry systems of the DCS character are used and they are characterised by excellent reliability.

An integral part of any control system is the computer network. The group of engineers from the company UNIS aims at design and supplies of computer networks including structured cabling. For industrial applications of networks solutions we offer products of the company Hirschmann, that proved very well in demanding conditions of industrial environment.

Critical technological processes require higher level of control safety – in the course of the design there are applied the international standards like DIN, V 19250, IEC 61508, IEC 615 11, ANSI/ISA-S84.01, NFPA 8502. The requirement frequently requires concentration of safety functions into one separate and independent control system, so called system for critical applications.

In relation to the standards, the company UNIS participates in safety analysis of technological process, it designs the architecture of the security system and performs verification of the security system including instrumentation.

The top control level is represented by the systems for manufacture management (MES). The company UNIS offers own solution of manufacturing execution system PHARIS®.


The company UNIS improves the level of its services by strict securing of quality based on generally and globally approved standard GAMP5 (Good Automated Manufacturing Practice).

Our primary aim is to arrange for the final manufacturing process to be performed in expected way and for the parameters of resulting products to meet the requested criteria. The resulting system of manufacture and its control to be put into validated status and to be kept in such status. In the course of the project realisation there is developed all and any needed documentation topped by the validation report at the moment of the project finishing, so as – at the moment of take-over – the project is ready for audit performance by an appropriate controlling authority.

The validation process is performed in such a way so as to respect natural and verified model:

Validation activities Development activities
Validation plan Planning and specification User requirements
Function specification of the system
Design verification Design HW design and specification
SW design and specification
Other devices design and specification
Creation verification Creation Creation of software modules code
SW design and specification
Other devices design and specification
Monitoring of the supplier Testing Testing of hardware, software modules and other devices
Instalation qualification Instalation Installation of hardware, software modules and other devices
Operation qualification Take-over tests System take-over tests
"Performance" qualification
Validation report
Keeping in validated conditions Use Maintenance
Contribution of validation processes:
  • production of systems that really serve their purpose and meet the original needs and requirements of the client,
  • transparency of the whole project helps it termination in agreed terms, reduction of costs and time,
  • reduction of costs and time,
  • rapid increase of probability of the final system to be in compliance with ideas of an approved validation authority (e.g. FDA),
  • it clears the responsibilities of the user and the supplier for individual validation activities.

Optimalization and Advanced Control

UNIS has developed its own C&ISD (Control and Information Designer). Control and Information System Designer (C&ISD or simply CISD) is a graphic modeling system. It is designated to ease and shorten the design time of any control and information system in field of industry control and automation.

At the same time, chosen approach is challenged to clarify every part of potentially complex model and therefore minimize occurrence of errors in model design or implementation.

C&ISD uses Modern structured analysis (MSA - founded by Edward Yourdon) as its core methodology. It was slightly enhanced of useful features of Object oriented modeling approach and some features that imply from the practice of control system design. All of these principles resulted in the set of diagrams, upon which C&ISD’s special purpose editors operate.


Process Instrumentation

  • Consulting and advising
  • Design studies
  • Basic designs
  • Technical designs and material requisitions issued for biddings
  • Detail designs
  • Installation plans including installation details
  • Bidding procedures
  • As-built documentation
  • I&T programs
  • I&C concept definition
  • Hook-ups and take-offs
  • Selection of instruments and equipment for industrial environment
  • Interface to electrical part and control system
  • Marshalling cabinets and junction boxes
  • Cables and cable routes
  • Fire and Gas Detection Systems
  • Measuring loops for temperature, pressure, levels, flow, and other process values including hook-ups
  • Complex systems for liquid and gas analyses and sample treatment systems
  • Emission measurement systems
  • Control valves and actuators
  • Equipment for hazardous areas
  • Oil & Gas industry
  • Chemical industry
  • Power and heat generation
  • Environmental applications
  • Machine industry
  • Building materials
  • Design supervision
  • Technical supervision
  • Installation management
  • Operators training
  • Maintenance training
  • Warranty and post-warranty service
  • AutoCAD
  • SmartPlant Instrumentation
  • SQL,
  • PDМS
  • Engineering Base
  • other systems can be used according to a client’s specific requirements


Electrical Systems

The company UNIS has extensive experience in designing the premises for manufacture and use of electric power.

The projects solve connection to the master feeding network, feeder switchboards, LV and HV distributors, motor, light and lighting conductor installations, cathodic protection grounding distribution systems, all of that in relation to other professions in the company UNIS.
The activities include:
  • Consulting and advisory services
  • Project studies
  • Initial projects
  • Implementation projects
  • Single-level projects
  • Selection proceedings
  • Author or technical supervision during implementation
  • Management of installations
  • Training of operators
  • As-built documentation
Projects are carried out in a software such as PDMS, ACAD 2012/ELPROCAD, Excelling, MS Office, all of that in Czech, English and Russian language.

UNIS places great importance on the quality of its work and services, and so applies strict quality management techniques during both design and installation phases.
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