Using the Weighting Indicator BC360L – Relay Over/Under Mode

 

Using the Weighting Indicator BC360L Relay Over/Under Mode
Automated Weight Control via Relay Based on Set Weight Limits
The BC360L Weighting Indicator from SYMC is more than just a display unit for load cell signalsit also features an intelligent control function that allows users to activate or deactivate electrical equipment via relays based on specific weight thresholds. Through the Relay Over/Under Mode, the system can operate automatically according to preset conditions, such as opening/closing valves, controlling conveyor belts, or triggering alerts for underweight or overweight conditions.

What is Relay Over/Under Mode?
This mode allows users to define two weight thresholds:

• Under (Minimum weight limit)
• Over (Maximum weight limit)

When the real-time weight value received from the load cell falls below or exceeds these thresholds, the indicator triggers the corresponding output relay based on the configured logic.

 

Example Use Cases
Simple Logic Example:

• If the weight is less than 10 kg, activate Relay 1 to start filling.
• If the weight is more than 50 kg, activate Relay 2 to stop filling.

Application Scenarios

Scenario	Threshold Settings	Relay Action
Filling material into a tank	Under = 10 kg, Over = 50 kg	Relay ON when < 10 kg (Start filling), OFF when > 50 kg
Controlling a conveyor belt	Under = 0.5 kg	Stop conveyor when theres no load on the scale
Overweight alert	Over = 1000 kg	Send signal to PLC or activate warning light/alarm

 

 Integration with Other Control Systems
The BC360L can also be integrated with PLC, SCADA, or Haiwell SmartLink systems, enabling advanced functionality such as:

• Monitoring relay status via smartphone
• Receiving alerts via LINE OA or Telegram when the weight goes out of range
• Recording weight data and relay status in real-time
  

Simplify Automatic Weight Control with Relay Over/Under Mode
The Relay Over/Under Mode on the BC360L transforms the weighing system into a semi-intelligent control unit, capable of making real-time decisions without human intervention. This enhances accuracy, reduces manual labor, and improves production efficiencymaking it ideal for factories or systems that require full automation.