User (custom) events

By PLC GFB_SYS(615) it’s possible to insert inside the trace user events (from USER_0 to USER_99) by which it can be interesting to check all interactions between overlapped functions or movements.A typical use: identify an abnormal overlapping function which creates a not-desired machine movement (e.g.: a strange movement sound).In this case some user events need to be inserted inside the PLC machine cycle (by GFB_SYS 615), leaving the sampling always active (circular buffer).When the abnormal movement is noticed, it’s enough to stop the sampling, then loading it inside GF_Project for analysis.All last events will be drawn and it will be possible to analyse all user events interactions (from USER_0 to USER_xxx) to check the strange behavior.