Your task is to program the water supply buffer system for a process that requires a steady flow of water available for cooling.

System Operation Refer to the provided Piping and Instrumentation Diagram to support this explanation. There are two tanks, TK001 and TK002. The two tanks work together to provide a steady flow of water for cooling to a separate process. There are two operations that may occur in a tank: fill and supply. When the system is first turned on, both tanks will fill. The system will then indicate to the following process that it is ready to supply water by activating the Water Supply OK output. When a Process Call input is received, tank 1 will supply the water to the process until the low level switch (LSL001) in tank 1 is activated. At this point, tank 2 will take over and supply water to the process while tank 1 fills until it reaches the high level switch (LSH001). This process continues, with one tank filling as the other supplies and then swapping over. The tanks are filled through valves V001 and V002. The tanks supply water through valves V003 and V004. V005 will be opened when either V003 or V004 are supplying water. The fill or supply functions will only operate when the On switch is activated. In addition, the supply function will only operate when the Process Call input is activated. Both tanks have high, high high, low and low low level sensors. The high and low level sensors should be used to swap between fill and supply functions. The high high and low low level sensors should be used to detect alarm conditions. All valves have position feedback and the program should include alarm logic. There is a flow switch after V005, which will alarm if there is no flow for 5 seconds when V005 is open. All inputs to be debounced for a suitable time. All alarms are to be latched. There is an alarm output to indicate alarm states, and an alarm reset pushbutton to clear alarms. There is another light which indicates when the system has been turned on

Digital Inputs 11: V001 Open Indication 12: V001 Closed Indication 13: V002 Open Indication 14: V002 Closed Indication I5: V003 Open Indication 16: V003 Closed Indication 17: V004 Open Indication 18: V004 Closed Indication 19: V005 Open Indication IA: V005 Closed Indication IB: Tank 1 High High Level Switch IC: Tank 1 High Level Switch ID: Tank 1 Low Level Switch IE: Tank 1 Low Low Level Switch IF: Tank 2 High High Level Switch IG: Tank 2 High Level Switch IH: Tank 2 Low Level Switch IJ: Tank 2 Low Low Level Switch IK: Flow Switch FS001 IL: On Switch IN: Process Call IP: Alarm Reset Pushbutton Digital Outputs Q1: V001 Open Command Q2: V002 Open Command Q3: V003 Open Command Q4: V004 Open Command Q5: V005 Open Command Q6: Alarm Light Q7: Water Supply OK Signal Q8: System On Light Go Digital Inputs 11: V001 Open Indication 12: V001 Closed Indication 13: V002 Open Indication 14: V002 Closed Indication I5: V003 Open Indication 16: V003 Closed Indication 17: V004 Open Indication 18: V004 Closed Indication 19: V005 Open Indication IA: V005 Closed Indication IB: Tank 1 High High Level Switch IC: Tank 1 High Level Switch ID: Tank 1 Low Level Switch IE: Tank 1 Low Low Level Switch IF: Tank 2 High High Level Switch IG: Tank 2 High Level Switch IH: Tank 2 Low Level Switch IJ: Tank 2 Low Low Level Switch IK: Flow Switch FS001 IL: On Switch IN: Process Call IP: Alarm Reset Pushbutton Digital Outputs Q1: V001 Open Command Q2: V002 Open Command Q3: V003 Open Command Q4: V004 Open Command Q5: V005 Open Command Q6: Alarm Light Q7: Water Supply OK Signal Q8: System On Light Go