ACE Issue 21 2019 | Page 25

"Precision and verifiability are decisive factors for us. The newer the plant, the more steps are monitored", Spenst explains. "Recently we wrote a chain of 800 steps, only 30 of them were paths. Everything else were just commands of pneumatic components or queries with alarm." Around 60% of the range was operator messages such as "end position not reached", "part lost" or "part not correctly mounted". What is decisive nowadays is that the user receives as much information as possible because in the case of a malfunction they must immediately identify the reason, Spenst highlights. This is particularly because of the precise monitoring of the grippers, because only in this way damages to the tools and system downtimes could be avoided. Denk always works in a multistage system here: First all parts are monitored whether they are correctly mounted. 25