Let’s begin to program the ladder logic routine.
We will add two new rungs to our ladder routine.
We use a greater than or equal element that compares the tank level tag, with the pump start setpoint tag, and latches the SoftWaterTank.PumpStarter and SoftWaterTank.WaterValve coils.
These coils will stay latched until rung 1, less than or equal element compares the tank level tag with the pump Stop setpoint tag, and when true will unlatch SoftWaterTank.PumpStart_SP and unlatches the SoftwaterTank.PumpStarter and SoftwaterTank.WaterValve coils.
Let’s startup Studio 5000, and select the program RealPars_IEC61131, previously created in the first section.
After the Studio 5000 program starts up, the “Logic Designer GUI” appears. In the “Controller Organizer Area” - “Tasks” folder - “MainProgram” folder, we can see the three different progr...