A most simple PLC programming example for those starting out with PLC programming. Try to figure out a way to correct this PLC program and make it work. Run it on a PLC to make sure you corrections work. Afterwords, you can go to https://www.slideshare.net/bin95/plc-programming-example-plc-clock-answ and see one of many possible solutions for a working example of the PLC clock program.