1) Channel2.Device1.Group1... is the path where your KEPware data logger could find your RBT1. If you add another device with another technology you should get something like : Channel3.Device1.Group1.... This is totally internal to KEPware data logger and have nothing to do with your PLC. What interest you is the last part of the path : RBT1_Y_WORK_COMP_RST
2) Are your PLC and the PC running the KEPware data logger time synchronized ?
3) You are connected to a PLC so the KEPware data logger take data from it, then your PLC has to be setup to collect the output of your machine if you want to do so.