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Oct 31, 2017 -

The mandate was to implement a supervision system for paint fill lines.

customer

Home Hardware Beauti-Tones is the # 1 Canadian manufacturer of Canadian-made retail paints. The Beauti-Tone Paint and Home Brand Division is located in southwestern Ontario. The plant and laboratories are one of North America's most modern paint manufacturing facilities. The Division provides a range of water-based and solvent-based paint products.

the challenge

The main challenge was to understand the customer's issues in order to define the right variables to allow the customer to have the most significant production data possible allowing them to become as efficient as possible in their production.

the solution

The solution developed consists of a management of the sequence of operations of the paint packaging. This allows tracking of downtime and a collection of equipment status data all in order to produce performance data to improve the efficiency of operations. The collected data are transmitted via a web interface to allow laboratory workers and plant managers to access them at any time.

Figures


  • 1  PcVue server
  • 2 HMI Client stations
  • PcVUE Web visualisation
  • 1 line in operation since december 2016
  • Downtime follow-up on a dozen equipment
  • Collection of production data on five equipment
  • A second line in progress
Nov 5, 2013 -

The mandate was to design, develop and deploy two SCADA systems (Supervisory Control And Data Acquisition to manage equipment located in two overseas airports (electricity , communications, etc ...). 

CUSTOMER

The Aeronav Group specializes in Integrated Air Traffic Control (ATC) Systems, Prefabricated VCR’s, Mobile ATC Towers, Ground-based Radio Navigation Aids (NavAids), Airfield Lighting Systems, Power Supply Systems and Control Tower Design. 

THE CHALLENGE

Design and implement systems that supervise electrical and communications equipment of two airports located overseas. Both systems must be fully functional before the on-site commissioning and be very robust. Lastly, both systems must be very simple to use and no mis-interpretation should be possible in case of an event warranting operator actions.

THE SOLUTION

Each airport  system consist of a server , two workstations, a giant screen and a printer. The client / server application is used to monitor all equipments, both for the operation of the airport and for the management of electrical equipments. The application running on the giant screens, located in the electrical room, enables global visibility of all equipments and provides redundancy with the client / server system in the main control room. In case of abnormal events, printers are started automatically and all relevant data printed.


FIGURES

  • 2 servers PCVue , 4 workstations
  • 1800 physical I / O read at 100 Hz
  • 200 SNMP data read at .5 Hz
  • 2 giant screens (65 inches)
  • Modbus TCP and RTU
Oct 15, 2012 -

Alcoa Howmet sought to modernize the management software of two mould production lines and needed expertise in industrial software for planning and executing this modernization.

THE CUSTOMER

With advanced technology and innovative solutions, Alcoa Howmet meets the stringent requirements of the aerospace industry by supplying precision castings of aluminum alloys.

THE CHALLENGE

Several systems are currently integrated, making use of outdated platforms. The main challenge is to modernize these solutions while simultaneously maintaining the full integrity of the management application.

THE SOLUTION

The team documented precisely the current architecture and functions performed, and established a rigorous plan of migration of the overall application. Given the sensitive nature of the process, special attention was given to ensure a smooth migration.

FIGURES

  • 1000 physical I/O
  • Field communications
  • 2 SCADA servers
  • 2  PLCs
  • 4 HMIs
  • SQL database
Oct 12, 2012 -

Hydro-Québec needed expertise in industrial automation systems to support the control systems of specialized equipments. These equipments are used for management of insulating oils and preparation of high-power transformers.

THE CUSTOMER

Hydro-Québec is a world leader in the production, transmission and distribution of electricity. It primarily serves the province of Quebec in addition to providing energy to the American market. The final customer is the maintenance division of Hydro-Québec managin insulating oils.

THE CHALLENGE

Several systems are in operation ​​with various types of controllers. All these systems have to be quickly mastered by our employees to provide quick and efficient technical support to the customer.

THE SOLUTION

The team documented and classified the different versions of the software used by the client, and set up a team of several engineers to control the source code and be able to provide necessary assistance to the client. This mandate is for a period of two years.

FIGURES

  • Allen-Bradley
  • Omron
  • RSView and Intellution
Oct 10, 2012 -

Wajax needed expertise in designing the control systems for the third pair of emergency generators, deployed at the Point Lepreau nuclear plant in New Brunswick. The customer also needed a project manager to ensure the smooth progress of the installation and delivery of this complex gen-set system.

THE CUSTOMER

The Wajax name has been associated for more than a century and a half with high quality products, excellent service and competitive prices. DDACE and Harper power systems were renamed Wajax Power systems, and supplies gearboxes, and gasoline or diesel generators.

THE CHALLENGE

The project was to be managed very tightly, due to the rigorous nuclear environment. The control system designed by Centris had to be applicable to a Cat 2 environment, clearly documented, and easily certifiable.

THE SOLUTION

The software architecture was designed in accordance with IEC 61131-3, and made use of encapsulation as much as possible the control blocks (Add-On instructions). This allows easier code reuse and thereby facilitates validation.  Project management was carried out in a collaborative manner with the end customer and various stakeholders, through a project management web portal accessible to all.

FIGURES

  • Redundant ControlLogix processors
  • Over 500 points (DeviceNet)
  • Panelmates for HMI
  • Cat2 certification environment
Oct 8, 2012 -

The mandate was to program the controls of a testbed consisting of a matrix of new generation photocells to track the sun and explore the possible efficiencies of such a new system. Motor controls and scaling of the instruments had to be flexible and the whole solution eventually connectable to a graphical interface for future development.

THE CUSTOMER

Natural Resources Canada is a government institution which operates in the following areas: energy, forests, minerals and metals, earth science. The government body also conducts research in energy efficiency.

THE CHALLENGE

Since the test bench is intended for research, a modular programming approach must be implemented to allow quick and easy changes to the functions of the testbed. In addition, ultra-precise positioning control is required to meet the research objectives.

THE SOLUTION

The control logics developed allow the automatic control of the motor, moving the matrix cells precisely according to the position of the sun in the sky. Instruments are calibrated so that easy modifications can be implemented as the testbed will evolve. The controller selected uses the Modbus protocol, which allows easy connection of any eventual graphical interface for complete supervision of the test bench.

FIGURES

  • 1 SCADAPack2 PLC 
  • 70 I/Os
  • 2 servos
  • Modbus RTU communications
Oct 6, 2012 -

The request was to develop an application to verify the status of variables in an ISaGRAF controller (such as those who operate the stations of the Montreal Subway). This check is made ​​for the purpose of preventive maintenance to ensure proper functioning of the static equipments of the subway stations.

THE CUSTOMER

14th largest corporation in Québec, the Société de Transport de Montréal (STM) provides 405 million trips per year, or 1.2 million per day. It generates 85% of the trips by public transport in Quebec.

THE CHALLENGE

Create a generic application that can be used on many different types of ISaGRAF controllers without requiring the presence of the ISaGRAF workbench. This application should run without needing a specific license, and without having any impact on the communication speed of the controllers in real-time operation.

THE SOLUTION

The final application was programmed in C / C + +, and uses the IXL functions of ISaGRAF to establish communications from the base station to the controllers, and reads the data required for display. Everything was wrapped in a packaged deliverable, easily installable on a Win32 workstation.

FIGURES

  • Win32 application in C/C++
  • TCP / IP communications
  • ISaGRAF IXL library
  • User-friendly interface
Sep 26, 2012 -

The mandates (2 projects) were to: 1- Build a bench to test wheels and a second to test track assemblies. During the tests, forces are applied at specific locations, either by hydraulic pistons or an inflatable balloon. Soucy can therfore measure wear and temperatures generated. Through a display screen, the operator can choose, adjust and execute test profiles.

THE CUSTOMER

Soucy Track is a Quebec-based company which dominates the international market for rubber tracks assemblies aimed at agricultural vehicles. Tracked sets offer a sustainable solution to soil compaction and cultivation without plowing, while enabling significant savings in time, fuel and money.

THE CHALLENGE

The main challenge was to ensure the accuracy of the forces applied to ensure repeatability when performing successive tests on a set of components.

THE SOLUTION

Both final applications were programmed on separate PLCs, one making use of an Omron PLC, the other, an ICPDAS 7188 micro-PLC. Both made use of PCVue as the HMI / SCADA system. Both controllers communicate via OPC to the PCVue SCADA and the returned data is logged real-time into a single database, which allows Soucy to perform analysis and generate graphs for each test performed. At the end of a test, a test report is created. In addition, all display windows and controls are also accessible via the intranet through a web browser. The Centris CPID block was used for all control loops, thus ensuring accuracy.

FIGURES

  • 1 Omron PLC, 30 I/O
  • 1 PLC ICPDAS 7188, 15 I/O
  • OPC DA protocol
  • 1 viewing station + Web screens
  • Continuous logging
  • Management and execution of test profiles
  • Generation of test reports
Sep 24, 2012 -

The project was to automate the commercial production of plant phyto-nutrients. The mandate included the delivery and programming of real time controllers and a SCADA application for monitoring, HMI screens and tracability of all production parameters. Everything had to be very robust and allow flexibility when process changes require re-configuration of the controls.

THE CUSTOMER

The client, wishing to remain anonymous, worked in the field of production of pharmaceutical compounds derived from plants (phyto-nutrients). These phyto-elements are then used in the production of third-party products  (ointments, creams, ...), or sold directly to consumers.

THE CHALLENGE

Control of the bio-reactors needed to be extremely precise, to ensure the production of phyto-nutrients efficiently by the plant cells. Also, the production plant has a research section, the control system, also encompassing the research, therefore had to allow easy modifications according to the needs of researchers.

THE SOLUTION

The software architecture was designed in accordance with the IEC 61131-3 programming methodology. ISaGRAF was chosen as the control engine for its compliance with this standard. Opto-22 cards were deployed for inputs and outputs in two control panels. Operator stations were deployed with FrontVUe and logging was carried out with the Canary Labs TrendLink, which facilitates the generation of production reports.

FIGURES

  • 3 computers with industrial real-time control engine;
  • Four operator stations (HMI);
  • More than 500 points of inputs and outputs;
  • Opto-22 and Modbus protocols;
  • SCADA server for central archiving.
Sep 22, 2012 -

Liné Machines needed a small communication interface box for their Flexitool product. This communication interface box must also act as a signal amplifier for some control signals sent the motor to the different instruments embedded in the Flexitool. This allows the connection and control of multiple Flexitools from a centralized PC.

THE CUSTOMER

Liné Machines specializes in the manufacture of machine tools for high dimensions CNC operations. Versatility, flexibility, power and precision define the criteria for that sector of the engineering industry. Forest-Liné and Liné machines have a wide experience built up over the years and offer products that comply with these criteria.

THE CHALLENGE

Primarily a challenge of cost and mechanical design. The communication box must have a low cost due to the large amount involved per machine Ŀiné produces (100 +). Also, the solution needs to be compact, easy to install and designed to avoid bad connections during the installation in the Flexitool.

THE SOLUTION

Two small circuit boards have been designed and integrated into a plastic box. Cable harnesses were also included for easy installation of the communications interface within the Flexitool. These harnesses are connected to the intelligent electrical motor and allow the Flexitool communications witht the main PC and amplification of the motor's signals. Finally, a Phoenix Contact connector allows "daisy chain" connections between each module.

FIGURES

  • More than 500 units delivered.
  • Convert RS-485 to RS-232
  • Amplification of control signal
  • Wiring harness pre-wired
Sep 20, 2012 -

The mandate was to develop and deploy a remote telemetry system. The data must be acquired in an arena (located in Kangiqsujuaq, Nunavik, Quebec) and sent, real time, to the analysis laboratory located in Varennes, Quebec. The data were read were to profle the energy consumption of such a building in the far North.

THE CUSTOMER

Natural Resources Canada is a government institution which operates in the following areas: energy, forests, minerals, metals and earth science. The agency conducts research in energy efficiency.

THE CHALLENGE

The distance was the main challenge. To deliver real-time data from so far raised several technical problems. Also, the robustness required was crucial, given the enormous costs if a service call became necessary on site.

THE SOLUTION

A control panel was built and installed in the electrical room of the arena. This cabinet contains a controller who was reading various environmental and power consumption readings. Then, through a wireless modem, the data is sent to an antenna in the village which then communicates with a satellite.  The data is then transferred to a terrestrial wired communication link (public) to the research center. The data s finally stored on a PCVue server for archiving and consultation.

FIGURES

  • 1 ICPDAS 8837 PLC
  • 60 I/O points
  • Two Lovato DMK for power readings
  • Modbus RTU communications
  • Wireless communications in the village
  • Satellite Communications
  • 1 PCVue server in the laboratory
Sep 18, 2012 -

The project, on behalf of a leading regional transport authority, involves the deployment of a bus fleet management system. The mandate given to Centris is to develop some specific software modules involved in the final deliverable of our customer to the transport authority.

THE CUSTOMER

This client offers highly sophisticated fleet management and passenger information solutions. The company continues to develop its systems through its ongoing research and development activites, which provides stability and continuity, despite the rapid development of communications, voice and data processing technology.

THE CHALLENGE

The project involves the use of multiple technologies, such as. NET, Silverlight and other environments and related modules. A large amount of interfaces are required to third party systems operating at the client's site. Despite this complexity, as with any project, the solution must be developed taking into account eventual changes in the customer specification, hence the need for a particular development approach that is modular and flexible.

THE SOLUTION

Centris provided a senior programmer that is integrated into the multi-disciplinary team of our client. The programmer works directly at the customer's facility, thus facilitating communication and interaction within the team.

Sep 16, 2012 -

The mandate was to provide a control and supervision system for a pilot plant of biotechnology processes, focusing on the area of ​​therapeutic products for human health. Control and supervision should take into account the context of a research laboratory, with frequent changes and adjustments to equipment. In all, half a dozen bioreactors, as well as related systems should be integrated in the implementation of central control.

THE CUSTOMER

The Institute of Biotechnology Research Institute (BRI) of the National Research Council of Canada devotes its work in the areas of health research, bioprocessing and the environment. These divisions support their research programs through their abilities and their technological platforms respectively. BRI is dedicated to providing research solutions and cutting edge science to its customers.

THE CHALLENGE

The challenge was to provide a flexible and easy to use control and supervision system that allows frequent changes of control codes and operator interfaces. The system was also designed to allow a variable number of input / output points. In addition, the SCADA system includes an flexible and modern interface (HMI) including complete data acquisition.

THE SOLUTION

The solution provided real-time control through the use of five Centris APCs running ISaGRAF target under QNX 6. The inputs / outputs are connected to a system of remote modules through Modbus TCP/IP. This solution allows greater flexibility when adding or modifying codes or adding new remote I/O modules. In addition, the PcVue SCADA from ARC was chosen, and allows easy integration of SCADA and HMI functionality required by the customer.

FIGURES

  •     Several bio-fermenters of various sizes
  •     Modbus TCP/IP communications
  •     More than 1,000 physical I/O
  •     5 Centris APCs
  •     1 PCVue SCADA server
  •     5 HMI operator stations
  •     Remote control with Web access
Sep 14, 2012 -

For this mandate, Centris had to program a commercial humidification machine’s real-time ISaGRAF software. The programming also covered the integration of specific requirements by Humijet clients.

 

THE CLIENT

Humijet is a private Quebec-based company with head offices in Lévis. Founded in 1998, Humijet builds humidification machines (commercial and industrial) for clients in Canada and the United States.  These machines incorporatedes water treatment equipmentsuch as reverse osmosis, microfiltration, nanofiltration and ultrafiltration

 

THE CHALLENGE

The machines had, in many cases, to interface with other management systems. The control system therefore had to make available control data to these systems, for example via BacNET. What more, each client had specific requirements, so that the base product and its control logic had to be modified.

 

THE SOLUTION

Centris positioned itself as an automation service developer to Humijet. Supplied services covered, among other things, the programming and interfacing of the Humijet machine to the building management systems of the end clients. What more, according to their needs, the controller’s modular architecture made it easy to add or remove I/O modules and specific functions.  Centris also offered immediate remote assistance in case of problems.

 

FIGURES

  • 1 ICPDAS 7188EG per machine
  • 30 to 50 I/Os per machine
  • RS-485 communications for local I/Os
  • Modbus / BACNet communication 
  • Maple HMI520 for user interface
Sep 12, 2012 -

Centris had to put in place three monitoring and control systems for bioreactors and instruments, so that the personnel could study the cellular cultures from three different rooms.  The systems had to allow the adding or modification of control parameters such as probes and data acquisition equipments used to monitor the cultures.

 

THE CLIENT

The École Polytechnique de Montréal’s chemical engineering department is affiliated with the reasearch branch of Canada’s applied metabolic engineering department. This research branch focuses on cellular reproduction and the productivity of cellular cultures through cellular nutrition, composition of cellular environments and studies on culture strategies.

 

THE CHALLENGE

Centris had to develop a system allowing for the easy upgrade of control parameters and/or control logics, to adapt to changing research requirements.  The configuration of these parameters had to be done mainly through user interfaces since researchers could not be expected to master advanced programming principles.

 

THE SOLUTION

The deployed solution, with 3 Centris APCs, allows for the modification and upgrade of monitoring equipment by means of PcVue screens.  Each application handles the monitoring and control of a multitude of  equipments and bioreactors from different rooms.  Communication between the control system and the equipments is of the Profibus DP type, while communication witth bioreactors is through OPC XML.

 

FIGURES

  • 3 monitoring stations
  • 3 control panels
  • 5 Infors HT bioreactors
  • 3 Centris APC processors
  • Web clients
  • Profibus and OPC XML

 

Sep 10, 2012 -

In February 2010, Dunn-Edwards gave Centris the automation project for the new plant’s overall production processes. The project started off with an architectural and requirement specification phase, followed by the documentation of all specifications, from raw material reception to recipe execution. Development of the system followed, so as to produce the first paint batches  by January 17th, as was required by the project plan.

 

THE CLIENT

Founded in 1925, the Dunn-Edwards corporation manufactures a complete line of paints and coatings designed for the peculiar climate of the American south west. The consolidation of all their factories and distribution centers led to the 2011 official opening of  an ultra-modern installation which would handle production, development, quality control laboratories, a distribution center as well as sales and administrative offices.

 

THE CHALLENGE

The main challenge was the strict schedule. Centris had less than 12 months to receive project requirements, documentation and approval of specifications, and finally the development and deployment of the new plant control system.  Also, a large interface to SAP was required for production planning and reporting.

 

THE SOLUTION

The Centris team developped a control solution using ISaGRAF and numerous logic resources running production processes.  6 Centris APC communicate with all field equipments. The control system is itself monitored by a SCADA (PcVue) that oversees recipe execution, through the use of a multitude of different tactile, web or mobile operator interfaces.

 

FIGURES

  • Around 6300 I/Os
  • 200 resources / 2100 equipments
  • 6 redundant (x2) APC w/ ISaGRAF
  • Around 75 000 SCADA variables
  • (50,000 with SAP)
  • 1 redundant (x2) PcVue server
  • 15 Dynics tactile production screens
  • 9 Dynics giant screens
  • 10 web and mobility clients







Sep 8, 2012 -

The application had to handle all communication, in real-time, of the packaging line which is comprised of many sub-systems.  The mandate was to replace a Measurex communication interface which was now obsolete and required high maintenance. The proposed solution had to be more reliable and give Domtar access to source code for further development.

 

THE CLIENT

Domtar is a Quebec pulp and paper company with head offices in Montreal. It is the third largest office paper supplier in North america. Domtar also owns many forest properties, the among the first to be managed according to the principles and standards of the FSC.

 

THE CHALLENGE

Three different interfaces: the first using GE Series Six (750 points with Genius protocol) controllers, a second one with serial industrial printers for the printing of client information on the paper rolls and a third using an application based on an Informix server (TCP/IP).  No controller offered a solution for this type of application. 

 

THE SOLUTION

The final application was deployed on only one computer (running QNX) equipped with the PCPVirgo software, which allowed for the integration of new protocols and communication extensions. A real-time database was created to store paper roll information from the production line.  For communication with the Informix server, a proprietary TCP/IP protocol was developped.

 

FIGURES

  • 750 physical I/Os
  • GE Genius protocol
  • TCP/IP communication with UNIX server
  • Industrial printer communications
  • 1 processor with local graphic screen
  • ‘Hot stand-by’ redundancy
  • 1 monitoring station
Sep 6, 2012 -

The purpose of this project was to develop and build a new vegetable warehouse controller.  This controller had to offer a user interface and contain the necessary logics required to maintain proper ambiant air control.  The purpose of the controller was to ensure, over long periods of time, that vegetable stocks would not perish or germinate prematurely.

 

THE CLIENT

Dayson Agricultural Ventilation is a ventilation specialist for the food industry. Focused on the delivery of turnkey solutions,  Dayson supplies easy to operate systems that are energy efficient. The company’s goal is to assist vegetable growers in their storage methods so as to ensure highest product quality possible, from harvest to sale.

 

THE CHALLENGE

Design of the controller had to take into account the fact that the client wished to market it as a standalone product, so that this was not a one-shot system development project. It was therefoe of crucial importance, on an aconomic standpoint, to minimize recurring costs. Yet despite this ‘’product’’ approach, Centris had to give the developped controller high flexibility, given the different warehouse conditions and client requirements that require specific control logics.

 

THE SOLUTION

A local graphical interface allows for complete warehouse and equipment (heating, ventilation, refrigerations and sensors) control.  The control system allows for manual or automatic control of the equipments based on external conditions. A database allows for the storage and tracking of process data and clients can consult alarm and event data through web or smartphone access.

 

FIGURES

  • 1 ICPDAS 7188EG controller per panel
  • 100 I/Os per controller
  • OPC DA to HMI Communications 
  • BLU300 Maple Systems screen
  • PCVue supervisor for SCADA functions
  • Web and smartphone monitoring
Sep 4, 2012 -

Centris was asked to participate in software integration for a medical telecommunication application. The team working on this project in conjunction with Centris was composed of roughly thirty people, from a multitude of Orange departments.

 

THE CLIENT

Orange Business Services offers B2B software development and communication services. The North american division maintains offices in Canada and the United States.

 

THE CHALLENGE

The project was for a major client in the medical industry, involved complex components and had several integration challenges due to the high number of interfaces. Quality control was also of critical importance since the project had to meet rigorous FDA regulations.

 

THE SOLUTION

Centris outsourced two software integrators who took ownership of the module integration portion of the project. They worked hand in hand with the Orange team for a duration of 18 months and this increase in efficiency allowed the project to be finished on time and with a very high quality level.

 

Sep 3, 2012 -

The mandate for this project was to develop a production data collection system which would monitor key efficiency indicators and display the data on screens located in various areas of the plant floor. This sytem, called PIDS (Plant Information Display System), had to be connected to the machines from four different production lines. These machines (6 in total) had to be modified to prevent their operation should they not be connected to the PIDS. 

 

THE CLIENT

Splendid Chocolates is a third generation privately-owned company offering high quality chocolate products. Splendid also specializes in the manufacture of flexibles molds for the chocolate industry.  Splendid works in close conjunction with its clients in order to create cutting edge products and packing processes.  The company is proud of the flexibility it offers its clientele.

 

THE CHALLENGE

The challenge was to offer a flexible, easy to use solution that would allow real-time data acquisition and the display of the key production indicators in a clear manner to the production staff. Additionally, management and display of employee break periods had to be incorporated into the solution.

 

THE SOLUTION

The solution took the form of a control panel incorporating a controller handling data acquisition and efficiency calculation.  This controller was linked to the production equipment through military-grade Amphenol connectors, so as to ensure proper lock-down when the machines were not connected to PIDS. Received data was then sent to a SCADA system and archived for future reference.

 

FIGURES

  • 1 ICPDAS 7188EG
  • 15 I/Os
  • 8 plant floor screens
  • PCVue supervisor
  • Web access
  • 4 pairs of military-grade connectors
Jul 28, 2012 -

While modernizing the controls of the Lynemouth plant in England,  Alcan had expressed the need for better real-time control of the plant’s 176 tanks. An open, rugged solution needed to be designed and deployed.  This solution had to interface 2nd level systems  (UNIX), where control decisions are taken.

 

the client

Rio Tinto Alcan is a world leader of aluminium production. It is one of the most important suppliers of bauxite, alumine and aluminium. Its leadership is backed up by the principles of durable development, that dictate its actions and decisions. Excellence in the fields of health, safety and the environment is one of its highest priorities.

 

the challenge

The large quantity of communication between level 2 servers, the integration of a new proprietary protocol (ISONet from Apix) and the need to encapsulate and automatically generate the codes made the use of a standard controller difficult. Also, the solution had to handle change notices and facilitate system certification by means of a simulator for the entire tank chain.

 

THE SOLUTION

A modular architecture was developped, partly through the use of a control block library.  The client chose an open platform based on industrial PCs.  The chosen control software was ISaGRAF with the ISONet protocol for I/O cards.  For level 2 communications, a proprietary TCP/IP protocol was developped between the control application and the servers.  Automatic function block instance and code generators were also developped.

 

FIGURES

  • 176 electrolysis tanks;
  • 6000 physical I/Os;
  • ISONet Apix protocol;
  • TCP/IP Communications with server;
  • 4 Ziatech STD-32 processors;
  • ‘cold stand-by’ type redundancy;
  • 1 monitoring station;
Jul 27, 2012 -

To its clients, Lallemand supplies a complete storage and delivery system for liquid yeast. The mandate for this project was to automate the management of the two 40,000lbs yeast tanks, and to ensure automatic transfer of precise yeast quantities to the mixers for bread production according to specific baker recipes.

the client

Lallemand produces baker’s yeast. Its “ingredients” division answers to the industry needs of bakeries by employing cutting-edge yeast technology, their enzymes and other products containing specialty ingredients. These products are then joined with added value services for the bakeries.

 

the challenge

Being a living organism, yeast requires tight storage parameter controls. Also, since minute variations in the yeast quantity delivered to the mixers can greatly affect end product quality, control over all delivery system parameters had to be extremely precise.

 

the SOLUTION

A ‘’Soft Logic’’ control engine running on an industrial computer was chosen for this application. I/O card communication was based on RS-485, while communication between Allen-Bradley modules used Highway+. A local HMI, near the yeast tanks, handled stock management and production methods. Yeast transfer queries to the mixers were either handled manually by Red Lion modules or automatically via requests sent from a central system.

 

figures

  • 1 industrial computer per bakery
  • 80 I/Os
  • Opto-22 or Allen-Bradley
  • RS-485 ou DH+ Protocols 
  • Red Lion Communications 
  • Modem access for remote support