ApplicationApplication StoriesAutomation NotebookFeature StoryIssue 20 – 2011Learning ResourcesMotor ControlsNotebook IssuePLCProcess ControlProductProgrammable Control
Upgrading Pump Stations with PLCs
When relays and timer circuits get old, they cause problems. Replacing them with PLCs keeps pumps running smoothly. One of the most important jobs of a water distribution system is to reliably deliver water to its customers. At our water district in California, we had pumping stations (Figure 1) with relay-based controls that were more…