Comment by _trampeltier

+1 from me for relais technique. It is easy to replace, even in 1000 years. Today PLCs are great and fun. We can do a lot of cool things with them. Just with the short and shorter life cycles, sometimes even less than 10 years. If something breaks you have to replace so much stuff for a small broken piece. Thats such a bummer in todays industrie automation.