This PLC+HMI integrated batch filling control system works with pulse/current signal flowmeters to realize automatic precise dosing for liquid materials. Equipped with dual valve & pump interlock, Modbus RTU communication, data logging and flow loss alarm, it supports volume/mass batching in L, m³, kg and tons, widely used in chemical, food and petroleum filling production lines.
The system receives real-time pulse or 4-20mA signals from flow meters, adopting pre-feeding + slow feeding dual-speed control logic. It automatically decelerates before reaching the target value to avoid overfilling, delivering consistent dosing precision far beyond manual weighing or visual estimation.
It completes feeding, slow filling, valve cut-off and batch reset fully automatically without staff operation for each batch. Operators only need to set target parameters once, greatly shortening interval time between batches and raising overall line running speed significantly.
Multiple preset batching formulas can be stored inside the controller. Workers call up target formulas with one touch instead of recalculating parameters manually, reducing adjustment downtime during frequent product switching and boosting continuous production efficiency.
The system monitors abnormal flow, empty pump and pipeline blockage signals in real time and triggers instant alarms. Staff can locate and fix malfunctions rapidly instead of discovering deviations after finished batches, minimizing unplanned downtime and waste of raw materials.
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