When PID tuning it is done right, it can provide significant benefits to your plant. A little help from PID tuning software can help tremendously to get your tuning on track. You can find many free PID tuning software downloads on the internet, or you can find a free PID tuner in your DCS. Nevertheless, are numerous companies that provide PID software licences at a fair price. But, why would you pay for a PID tuning software licence when you can do somewhat the same with the free versions?
The answer is simple, the most critical PID loops in your plant will get left behind when you use free PID tuning software. The freeware will stand in the way of optimization and receiving the full ROI of your plant.