---
title: How can we control a balance or scale from a PC as well as transferring the weighing data to the PC?
description: How can we control a balance or scale from a PC as well as transferring the weighing data to the PC?
---

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# How can we control a balance or scale from a PC as well as transferring the weighing data to the PC?

1. AX-USB-9P / 25P / DIN (serial-USB converter & cable sets)  
   These converter and cable sets convert the RS-232C output from a balance or scale and send it to a USB port of a PC.  
   It is possible to perform bi-directional communication and receive GLP/GMP outputs.  
   For data transfer, A&D offers WinCT (Windows Communication Tools) software, which can be downloaded from the A&D website free of charge.  
   From the following three converters, please select the one that matches the RS-232C interface of your weighing instrument.
   
   | Type of RS-232C Interface | Applicable Serial-USB Converter                \* Compatible with Windows98 SE or later |
   | --- | --- |
   | D-Sub 9 Pin | AX-USB-9P |
   | D-Sub 25 Pin | AX-USB-25P |
   | DIN | AX-USB-DIN |
   
   ![](https://www.aandd.jp/support/faqphoto/ax-usb-9p_data.jpg)
2. RS-232C  
   Many balances and scales are equipped with an RS-232C interface as standard. If your PC has a serial port (COM port), bi-directional communication can be established only by purchasing a connection cable that matches the interface of your weighing instrument.  
   For data transfer, A&D offers WinCT (Windows Communication Tools) software, which can be downloaded from the A&D website free of charge.
   
   ![](https://www.aandd.jp/support/faqphoto/rs232c_data.jpg)

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