hi guys. have always wondered how the plcs can be programmed to know when to reject a fully enclosed package running on a conveyor belt. What are the sensors they used? heard it's something like pressure pad or something. Care to elaborate further?
Another question is how do you guys know which type of sensor to use? Do you use a optical sensor or the normal kind to detect a reflective surface at an angle? tried using one by fuji electric but it did not give a stable result. Any suggestions?
Thanks
Another question is how do you guys know which type of sensor to use? Do you use a optical sensor or the normal kind to detect a reflective surface at an angle? tried using one by fuji electric but it did not give a stable result. Any suggestions?
Thanks