This document contains a list of 46 topics related to control and automation using programmable logic controllers (PLCs). The topics include implementing PID controllers with PLCs to control speed of DC motors, temperature of heaters and water levels. Other topics include designing PLC controls for twin valve filters, oil storage systems, solar cell lamination machines, heating boilers, furnaces, and induction motors. Several topics discuss developing PLC-based supervisory control and data acquisition (SCADA) systems, remote monitoring systems, traffic light controls, conveyor speed controls, and automation of processes like sugar boiling and bottle filling.