Abstarct: Abstract .............................................. One of the most useful technical analysis tools are indicators that can be used to better understand price charts. In this research, the role of programmable logic controllers in the digital currency market has been investigated. For this purpose, from 2021 and 2022, the information of Bitcoin, Ethereum and Solana has been examined. In this research, price and yield variables have been analyzed using the algorithm designed in Schematic Manager software. The findings of the research showed that the yield of buying and selling positions baxsed on the signals issued from the algorithm designed for Bitcoin, Ethereum and Solana is positive, and baxsed on the algorithm of programmable logic controllers, it is possible to obtain a positive yield baxsed on technical signals.