Choosing “the best” PLC for your system is a very individual-circumstance-specific task, and is best allotted to a control system integrator (like a Corso team member!) who understands all the technical ins and outs. Choosing a PLC should involve answering questions like “what PLC’s are already in use?” “how fast does it have to function?” “how much work do I want this system to handle and for how long?” “how much am I willing to spend?” and “what languages do my other systems (and my employees) already use?” Some people will need a one and done solution, while others will need something that can evolve and be expandable for future needs. Cost, compatibility, and long term goals are all important factors when choosing a PLC, and should be carefully considered
In the end it almost completely comes down to who is programming a PLC and how it gets programmed; because of this, everyone tends to have a “favorite PLC” that they will tout above every other PLC on the market. While Corso Systems has experience using a wide variety of PLC’s and can help you work with whatever your preference is, we, too, have a couple of favorite brands: Rockwell Automation/Allen Bradley and Siemens. We like these the best because, very simply, they work well. Both Rockwell and Siemens have good integration with Inductive Automation’s Ignition software, which increases upstart time and functionality. Most people who use Rockwell’s FactoryTalk are going to use RW/AB PLC’s while those who prefer Siemens hardware opt for WinCC OA.
Are there other options? Yes, dozens; maybe more. Have we worked with many of them in the past? Of course. Corso is happy to work with you to choose the best PLC for your system, and know which questions to ask to make sure you’re making the best choice.