Serial Communication Software

Serial Communication X-CTU software lets you log data from almost any instrument connected to your PC’s COM or TCP/IP port.

This communicates with RS232, RS422, RS485, Modbus and TCP/IP devices. What’s more, it’s free! Its extensive trouble-shooting capabilities make it ideal for solving communication problems, or for quickly checking that you can talk to your instrument before starting to automatically acquire data. The new version works with Windows 10 and earlier versions of Windows.


Features of X-CTU

  • No programming required
  • Free technical support for life
  • For instruments communicating over RS232, RS422, RS485, Modbus and TCP/IP
  • Understands ASCII, binary and hexadecimal data
  • For serial instruments that continually send data and those that need prompting
  • Quickly identify and correct communication errors
  • Insert cyclic redundancy checks (CRCs)
  • Send 4-byte (32-bit) integers, 4-byte words (double words), ASCII characters, hexadecimal, signed bytes, bytes, bits, 4-byte floating point, 4-byte reverse floating point…
  • Control the state of the PC’s serial port output lines
  • See the state of the serial port input lines
  • See all bytes sent and received, even non-printing characters like carriage returns. This is crucial when dealing with binary data.
  • Send acknowledgements
  • For Windows 10, 8, 7, Vista, XP, 98 and 95
  • Data logging from one instrument.

How to use Serial Communication Software(Click Here)

Serial Communication USB TTL Driver(Click Here)


Title                                                           X-CTU
Filename                                                  X-CTU.exe
File size                                                    48.25 MB 
Requirements                                         Window/ XP / Vista / Windows 7/ Windows 8 / Windows 10
Languages                                               Multiple languages
License                                                     Freeware