Process Control Systems PCS – The Next Generation.
“In many companies, the first IT systems that helped actively control production processes were introduced about 20 years ago. Many of them have become rather outdated and are now being replaced by modern, much more powerful systems,” reports Thomas Neudorfer, Managing Director of the ROBUR partner company ESCAD from Austria. This however often means a radical step, because 20 years in IT are centuries in other areas.
Renewal is necessary for many reasons and, in many parts, can no longer be postponed. One reason is IT security. The operating systems on which the old programs run are simply no longer supported, and in some cases the hardware is no longer up to scratch. Therefore, those responsible for IT are putting pressure on the company to realize updates, but in turn – quite understandably – they are encountering resistance from the persons responsible in production. True to the motto “never change a running system”, they do not want to risk any interruptions in production which is one of the reasons why many systems have remained untouched for years and have been “frozen” regarding updates. Other reasons for updates are also the renewal or expansion of the production facilities which make modernization of the control system reasonable.
A planned interruption of production due to an extension and new installation of a packaging system was taken as an opportunity by a customer with a chocolate factory to completely update the process control system (PCS). One week was not much time for this task – considering the extensive work – but sufficient for the ESCAD specialists.
The new implemented system brings many improvements. On the one hand, it uses and analyzes more data, e.g., also energy consumption for optimized control. On the other hand, modern systems work much better regarding interfaces with higher-level or subordinate systems, such as order management and the ordering system. As a rule: more up-to-date systems bring with them a significant boost in efficiency.
This is also evident at another customer of the ESCAD colleagues, an Austrian dairy factory. At the time a relatively small company, the dairy factory was unusually early to fully rely on state-of-the-art process automation. An investment that has already paid off several times in terms of efficiency and growth options. A new system for the sterilization of products by means of UHT (ultra-high temperature) has recently been integrated into the plant, which is also capable of working “vegan” – seamlessly integrated into the process control system, of course.
Perfectly coordinated systems require professionals for system integration. This is particularly important in order to regulate the competencies between the systems. Because in process automation, it must be clear which system does what, i.e., which functions, and logics are located where. This is all the more necessary nowadays, the more software packages claim to represent holistic solutions, which means that the boundaries between classic, originally commercially oriented systems such as SAP and, for example true-bred ERP, logistic or even process control systems are becoming blurred: They all want to be the MES (Management Execution System)! The systems compete for the respective competence for certain tasks, which is why a good system integrator should know the processes on the customer’s side as well as the strengths and weaknesses of existing solutions or solutions to be newly implemented.
New systems also regularly bring greater flexibility in terms of extensions. Not only with milk and chocolate, but also with the use of software, appetite often comes with eating. New ideas or the desire to integrate further production steps into the process automation quickly emerge – in the past, this was a time-consuming and risky undertaking in terms of possible interruptions to operations, but today it can be done rather quickly and without great risk.
From ESCAD’s perspective, the process control market remains extremely exciting, with new technologies such as IoT, blockchain, robotics, and even 3 D printing bringing many new opportunities, just as artificial intelligence and new sensors will drive automation.
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