Tank Pump Control with Low/High Level Using Data Block PART8 скачать в хорошем качестве

Tank Pump Control with Low/High Level Using Data Block PART8

This program controls a pump based on tank level signals using Data Block (DB) variables in a Siemens S7-1200 PLC. When the low-level sensor is activated, the pump starts to fill the tank. The pump continues running until the high-level sensor is reached. When the high level becomes active, the pump stops automatically to prevent overflow. All level signals, pump status, and internal logic bits are stored in a data block, allowing easy monitoring, modification, and SCADA/HMI integration. Using DB variables improves program structure, makes tags clear, and allows reuse in other projects. Typical tags (example): DB_Pump.LowLevel – Low level input status DB_Pump.HighLevel – High level input status DB_Pump.PumpCmd – Pump command output DB_Pump.PumpRun – Pump running feedback Purpose: Used in water tanks, reservoirs, or process tanks where automatic filling and safe level control are required.