Keywords: Programmable Logic Controllers (PLCs) Programmable Automation Controllers (PACs), Energy Management, Engineering, Machine Safeguarding
Companies have invested heavily in the development of the programmable logic controller (PLC) in an effort to improve programming tools that reduce engineering time. Engineering or programming tools are increasingly a differentiation criteria for PLCs. Engineering time is a threat to the success of many projects, and an engineering tool can reduce downtime and the effort it takes to maintain the line. It is important to leverage the standard IEC programming languages because there is currently no universal programming tool that can maintain PLCs from various suppliers.
“The capabilities of a PLC for some of the most demanding requirements today require a more rigorous approach to supplier selection. Furthermore, Big Data, Industrial Internet of Things (IIoT), and Industrie 4.0 require automation solutions that can be extended to support these future capabilities,” commented Florian Güldner, the principal author of ARC’s “PLCs and PLC-based PAC Evaluation and Selection Guide”.
Selecting the Right Controller Is Often Not Straightforward
Advancements in technologies have made the capabilities of the controllers used in the discrete and process industries more comparable. Increasing processing power and networking technologies, along with a lower cost base, enable today’s PLC-based PACs to address many DCS applications, especially if these applications are not at the high-end of the performance spectrum. Purchasers need to evaluate which controller best suits their application; in many cases users may find that PLC-based PACs may offer the best value controller.
Understanding the Needs of the Application Is the Key to a Winning Strategy
The criteria list that is included in this report is the result of ARC’s analysis of the emerging practices of adoption. Often the total solution is complex and functionality involves the combination of an expanded range of capabilities and specific technology. However, as you will see, the criteria is more than just a list of the technical requirements to meet the objectives of successful adoption. While a product’s functions plays a major role, suppliers have specific domain expertise, geographical presence, and knowledge of certain industry dynamics. These must all be evaluated in your supplier and technology selection process.
For more information on this guide, please visit our Technology Evaluation and Selection section.