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Integrating your MES & SCADA Systems: Synergy for Enhanced Industrial Operations

In the rapidly evolving landscape of industrial automation, the integration of Manufacturing Execution Systems (MES) and Supervisory Control and Data Acquisition (SCADA) has emerged as a powerful combination.

A seamless convergence of MES and SCADA technologies holds immense potential for optimising operational efficiency, improving decision-making processes, and driving overall productivity in diverse industries. In this article, we will explore the benefits of MES and SCADA integration and how it revolutionises industrial operations.

MES & SCADA Integration

What is a Supervisory Control and Data Acquisition (SCADA) system?

A SCADA system enables real-time monitoring and control of industrial processes. Manufacturing Companies can gather data from various sensors, devices, and equipment on the production floor and visualise it in a centralised control room. This real-time visibility allows Manufacturing Companies to monitor critical parameters, detect anomalies or deviations, and take immediate action to optimise operations, ensure product quality, and minimise downtime.

With a comprehensive SCADA platform for IIoT, manufacturers can improve efficiency and productivity, reduce costs and waste and give you greater control over disparate systems. SCADA combines software and hardware to create a control system that is frequently referred to as automation technology. The system receives data about processes and related equipment, which supervisors then use to control and optimise operations.

By implementing a SCADA system, Manufacturing Companies can automate and streamline their operations. Manual data collection and monitoring processes are replaced by automated data acquisition and remote control capabilities. This reduces the need for manual intervention, minimises errors, and improves overall operational efficiency. With a SCADA system, Manufacturing Companies can optimise resource utilisation, reduce waste, and increase productivity.

By monitoring and controlling processes in real-time, Manufacturing Companies can detect hazardous situations promptly and trigger alarms or automated responses to prevent accidents. Additionally, SCADA systems provide security features such as user authentication, data encryption, and access control, ensuring that only authorised personnel can access and control the system, protecting sensitive data and preventing unauthorised actions.

One of the significant advantages of a SCADA system is the ability to remotely monitor and manage operations. Manufacturing Companies can access real-time data, control processes, and receive alerts or notifications from any location with an internet connection.

Implementing a SCADA system can lead to cost savings for Manufacturing Companies. By improving operational efficiency, reducing downtime, optimising resource utilisation, and preventing costly errors or accidents, Manufacturing Companies can realise significant cost savings over time. Additionally, remote monitoring capabilities reduce the need for on-site personnel, resulting in potential cost reductions in labor and travel expenses.

What is a Manufacturing Execution System (MES)?

MES platforms provide real-time visibility into production processes, allowing Manufacturing Companies to optimise their operations. With a comprehensive MES solution, manufacturers can digitise, standardise, optimise and govern operational processes and work activities across industrial manufacturing plants.

By capturing and analysing data from various sources, such as machines, sensors, and workers, an MES system enables Manufacturing Companies to identify bottlenecks, streamline workflows, and improve overall efficiency. This leads to reduced cycle times, minimised downtime, and improved resource utilisation.

A MES system also enables Manufacturing Companies to implement robust quality control measures by monitoring and controlling critical process parameters in real-time. It provides Manufacturing Companies with advanced planning and scheduling capabilities as well. By integrating real-time data from various production stages, an MES system helps Manufacturing Companies optimise production plans, allocate resources effectively, and meet customer demands more efficiently.

MES systems are designed to be scalable, accommodating the growth and evolving needs of Manufacturing Companies. As Manufacturing Companies expand their operations, an MES system can easily adapt to the increasing complexity and volume of production. Furthermore, an MES system allows for integration with other enterprise systems, such as Enterprise Resource Planning (ERP) and Customer Relationship Management (CRM), enabling Manufacturing Companies to streamline their overall business processes.

MES & SCADA Integration

The Difference between SCADA and MES Systems

SCADA (Supervisory Control and Data Acquisition) and MES (Manufacturing Execution Systems) are two distinct but interconnected systems used in the manufacturing industry. While they serve different purposes, they can complement each other to enhance overall operational efficiency.

Here are the key differences between SCADA and MES systems:

Scope and Focus

  • SCADA System: SCADA systems primarily focus on monitoring and control of industrial processes, utilising with PLCs in real-time. They are designed to gather and visualise data from sensors, devices, and equipment on the production floor. SCADA systems provide operators with real-time insights into the status of equipment and processes, enabling them to monitor and control operations effectively.

  • MES System: MES systems, on the other hand, have a broader scope and focus on managing and optimising manufacturing operations as a whole. They provide functionalities to plan, schedule, track, and manage production activities, including work orders, inventory, resource allocation, quality control, and data analysis. MES systems facilitate efficient production planning, execution, and tracking, ensuring seamless coordination across different departments and stages of the manufacturing process.


  • SCADA System: SCADA systems operate in real-time, monitoring and controlling processes as they happen. They provide immediate visibility into the current state of the production environment and enable operators to respond quickly to deviations or anomalies.

  • MES System: MES systems can operate in real-time but also provide capabilities for historical data analysis and long-term performance monitoring. MES systems capture and store data over an extended period, allowing for trend analysis, performance evaluation, and continuous improvement initiatives.

Data Focus

  • SCADA System: SCADA systems primarily focus on collecting and visualising real-time data related to process variables, such as temperature, pressure, flow rates, and equipment status. The data collected by SCADA systems is essential for immediate process control and monitoring.

  • MES System: MES systems capture and analyse a broader range of data, including production metrics, quality data, inventory levels, equipment downtime, and labor utilisation. MES systems provide a comprehensive view of the manufacturing process, enabling data-driven decision-making and performance optimisation.

Role in Operations

  • SCADA System: SCADA systems primarily serve operational needs by providing real-time monitoring, control, and visualisation of processes. They are essential for maintaining process stability, safety, and efficiency.

  • MES System: MES systems play a more significant role in managing and optimising manufacturing operations. They provide functionalities for planning, scheduling, tracking, and analysing production activities, as well as managing resources, materials, and quality control. MES systems bridge the gap between production and business functions, facilitating coordination and decision-making across the organisation.


  • SCADA System: SCADA systems are typically integrated with equipment and devices on the production floor, such as sensors, PLCs (Programmable Logic Controllers), and HMIs (Human Machine Interfaces). They establish a direct connection to these devices for data acquisition and control.

  • MES System: MES systems integrate with various enterprise systems, including ERP (Enterprise Resource Planning), PLM (Product Lifecycle Management), and other systems involved in production planning, inventory management, and business processes. MES systems act as a bridge between shop floor operations and higher-level business systems, facilitating data exchange and coordination across the organisation. Integrating a MES to the ERP allows real-time production adjustments, more efficient scheduling, change order efficiency and accurate demand forecasts. However, ERP system does receive (via MES) data from the production process, but the amount of this information is very limited. Mainly it is summarised data important for the business process (sales, accounting, supply chain) which refers to the total amount of raw materials used in production, a total number of final products produced product quality information, etc.

MES & SCADA Integration

When the initial versions of MES programs were introduced, they primarily focused on incorporating manual operations by utilising data entry interfaces. To streamline the process of gathering information and ensuring traceability, MES software started managing devices like barcode readers and tag printers directly or through automated systems, but not typically through supervision software. Presenting SCADA as an intermediary stage between the "ground" (manual operations) and the MES is not an accurate depiction of reality.

In practice, supervision and MES systems follow distinct paths, existing as separate entities. Additionally, these tools often embody different cultures: supervision developments reflect a perspective centered around automation and low-level input/output systems, while MES developments embody an operational perspective, being more structured and computationally-oriented. Consequently, there haven't been well-defined structured exchanges between SCADA and MES. Instead, MES programs find it easier to collect data directly from the source.

SCADA systems focus on real-time process monitoring and control, while MES systems have a broader scope, encompassing production planning, execution, and analysis. While SCADA systems primarily operate in real-time, MES systems can handle both real-time and historical data for long-term performance evaluation and improvement. Both systems play crucial roles in optimising manufacturing operations, and integration between SCADA and MES systems can create a comprehensive solution for efficient production management.

Combing an MES with a SCADA system will reduce your investments in licensing fees and hardware. Likewise, process complexity is minimised when operators are required to interact with fewer screens. The following is a list of some of the benefitis of this technology convergence:

Streamlined Data Acquisition and Analysis

MES & SCADA integration facilitates the collection and analysis of real-time data from various sources across the production floor. SCADA systems provide real-time monitoring and control of industrial processes, capturing data from sensors, devices, and equipment. MES complements this by collecting data from multiple production stages, such as inventory, quality control, and scheduling. By integrating these systems, organisations can leverage a comprehensive dataset to gain deeper insights into their operations, identify bottlenecks, and make data-driven decisions promptly.

Enhanced Operational Visibility and Control

The integration of MES and SCADA empowers organisations with a holistic view of their operations. Real-time data from SCADA systems combined with MES data allows for a comprehensive overview of the production floor, including real-time machine status, process parameters, inventory levels, and resource utilisation. This heightened visibility enables organisations to identify and address operational issues promptly, optimise production processes, and improve overall efficiency.

Improved Efficiency and Productivity

MES & SCADA integration streamlines workflows by automating data exchange between systems, reducing manual data entry errors, and eliminating redundant tasks. This automation saves time and effort while improving accuracy. By aligning production plans with real-time data from SCADA, MES ensures optimal utilisation of resources, minimises downtime, and enhances productivity. Additionally, the integration enables the implementation of advanced analytics and predictive maintenance, allowing organisations to detect equipment failures in advance and schedule maintenance proactively, preventing costly unplanned downtime.

Enhanced Quality Control and Compliance

The combination of MES and SCADA facilitates real-time monitoring and control of critical process parameters. This capability enables organisations to maintain stringent quality standards by continuously monitoring and adjusting production processes. MES & SCADA integration also simplifies compliance with regulatory requirements and industry standards, as data capture and reporting become more accurate, reliable, and transparent. This integration helps organisations demonstrate compliance during audits and inspections, reducing the risk of non-compliance penalties and reputation damage.

Improved Decision-Making

Integrating MES and SCADA systems provides decision-makers with access to accurate, real-time data, enabling them to make informed decisions quickly. The availability of comprehensive data across the production floor allows for better forecasting, planning, and scheduling. Real-time insights derived from integrated systems empower decision-makers to identify opportunities for process optimisation, cost reduction, and resource allocation. This proactive decision-making approach drives agility and competitiveness in the market.

The integration of MES and SCADA technologies offers significant advantages for modern industrial operations. From streamlined data acquisition and analysis to enhanced operational visibility, improved efficiency, and informed decision-making, organisations can unlock a multitude of benefits by leveraging the synergies of these systems. As industries continue to embrace digital transformation, investing in MES & SCADA integration becomes imperative for organisations looking to maximise their operational potential, improve productivity, and remain competitive in an ever-evolving market.

Polestar Data Services allow you to automatically integrate all production information from industrial plants, improving process efficiency by collecting historical and real-time data. Our integration services enable agile access to MES & SCADA information and the integration of MES applications for the calculation and analysis of OEE, incorporating the results of OEE analysis to other native applications such as SCADA, reports, and others.

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