How to Best Implement PLC Standards

Standardization has long been considered an industrial automation best practice when programming programmable logic controllers (PLCs, PACs). Implementing and documenting PLC standards is crucial to achieving the most outstanding value from this investment. Nevertheless, why does standardization bring value, and what are the benefits?

What are the Benefits of PLC Standards?

First, why should we implement PLC standards at all? Why not simply rely on the programmer to be consistent in their work? Clearly, programming styles between individuals are likely to differ, but even a single programmer typically changes styles across programs or even within a single program. Standards allow for universal consistency and for changes, upgrades, or even replacements to be made more smoothly and efficiently. Formally documenting PLC programming standards allows expectations to be clearly communicated to programmers.

Though standards are incredibly valuable, implementing them takes considerable initial effort. However, the initial work literally pays off; standardization saves money in the long run. The work and discussions at the beginning of the standardization process reveal complex details of how the system will be used. These discussions also determine how changes can be made to benefit the client. While the effort initially may seem tedious, it will ultimately save your organization time and money when implementing future projects. Because standardization leaves a documented trail, changes can be made quickly and with minimal effort.