Data interface RS-232

The integrated RS-232 data interface is a proven solution for the serial transmission of weight data (gross weight, net weight, total memory, date, time, alibi memory) in a wide range of applications. It is ideal for connecting scales to external devices such as PCs (ERP and warehouse systems), printers, secondary displays, or data loggers.

Thanks to asynchronous point-to-point communication, RS-232 enables a stable and interference-resistant connection – even in industrial environments. The interface is perfectly suited for automated weighing processes, label printing, data archiving, or the direct import of weighing data into software applications. For verified (legal-for-trade) scales, legal metrology requirements must be observed.

Technical Specifications

• RS-232 according to EIA standard – robust and universally applicable
• Transmission format: ASCII data output, optionally bidirectional (e.g., TARE, zeroing via remote command)
• Configurable data transmission speed (baud rate): 1200 ~ 115200 baud Character set: 8 data bits with adjustable parity (none, even, odd)
• Transmission modes (8 standard formats preset):
  • Data transmission by pressing the PRINT button on the scale (with or without saving to total memory)
  • Continuous transmission
  • Automatic (single) transmission when the weight is stable (with or without zero crossing)
  • Ask-mode transmission upon request from the computer in bidirectional command mode
• Cable length: 3 or 5 m
• Suitable for direct connection to PCs, PLCs, label printers, display and evaluation devices

Scope of Delivery & Connection

• Integrated RS-232 interface in the scale electronics
• Data cable: 3 m standard length (optional 5 m)
• Connector: M12 (scale side) to Sub-D9 (RS-232, PC/printer side)
• Plug-and-play

Applications & Benefits

The RS-232 interface has proven itself across a wide range of industries and applications:

• Industry: Integration of platform scales or process scales into production lines and quality assurance
• Logistics & Shipping: Automatic weight acquisition with shipping scales and parcel processing
• Laboratory & Analytics: Logging of measurement values from analytical or precision balances according to GLP/GMP
• Retail & POS Systems: Direct transmission of product weights into inventory management systems or POS software
• Medical & Veterinary: Integration of weighing data into digital documentation systems

Thanks to its ease of use, universal compatibility, and long-term availability, RS-232 remains one of the most popular interfaces for digital scales with serial connectivity. Ideal for anyone looking for reliable, stable, and system-open communication between a scale and peripheral device.

Common Search Terms for This Product

RS-232 scale, serial interface for scales, data interface for industrial scales, digital scale with PC connection, connect scale to PLC, weight data RS-232, connect scale via serial, scale interface logistics