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Serial Port Monitor
RS485 analyzer software

RS485 Sniffer is a system utility to collect data that goes through COM ports of your PC. Essentially, this RS485 communication software performs the following functions – monitors and records data exchanged with a serial port so you can use it for further analysis and, if required, trouble-shooting. This is of critical importance for development and testing of applications, drivers and serial devices.

This RS485 monitor software has a number of additional features, including advanced filtering and search, terminal mode and options to export data in various formats. Clean interface and intuitive navigation make RS485 Sniffer extremely easy-to-use.

RS485 Sniffer enables you to:

  • Monitor data

    You can connect to a serial port anytime – even if there is a device connected to it -and start collecting and displaying IOCTLs (input/ output control codes) instantaneously. Capability of this RS485 data logger to capture full information in the real time mode makes it possible to identify and correct problems on time.
  • Monitor several ports within one session

    This RS485 analyzer makes it possible to watch multiple ports at a time, i.e. you can intercept data on interaction of application with multiple ports and devices. All of this is done within one session, the output – a single log where data is arranged on a first-in-first-out basis – is easy to analyze.
  • Record data

    Information can be redirected and recorded in a specified folder. You can also copy it to a clipboard to paste it wherever you need to. RS485 protocol analyzer enables saving monitoring sessions so you can get back to them when required.
  • View data

    There are 4 modes – table, line, dump and terminal – you can choose from when browsing data. Each suits a particular purpose. RS485 Sniffer offers convenient filtering options so you can view only relevant parameters without being distracted by excess information.
  • Simulate sending data

    To check a reaction of a monitored device to a particular command or data, it might be required to simulate sending data to a serial port. RS422 Monitor allows you to do that, formats supported include string, binary, octal, decimal, hexadecimal, mixed.
  • Analyze Modbus RTU and ASCII data

    RS485 Sniffer allows to view and analyze communication data sent via Modbus ASCII and RTU protocols. With this RS485 communication software you will be able to monitor and analyze the activity of serial devices.
  • Reproduce and compare monitoring sessions

    RS485 Port Sniffer offers a special session playback possibility - you can send information got from the application to the RS485 port once more. It means that you can resend data received from the app to the serial port. This allows reviewing port's behavior on receipt of the same data for as many times as needed. Sessions can be compared with the possibility to automatically display the differences between them.

Highlights of RS485 Sniffer functionality:

Monitor a serial port – Professional and Company Editions allow you to connect to a port being in use
Monitor multiple ports at a time – add a few of them within one session
Record data – in a specified location or copy it to the clipboard
Compatibility with Windows 10 (both x32 and x 64)
Digital signature of RS485 Sniffer and its internal drivers
Support to all types of serial ports - standard on-board ports, extension board ports, software-based virtual COM ports, bluetooth serial ports, USB to SERIAL cradles, etc.

Corporate, OEM & Source code

Whether you're looking at redistributing our Serial Port Monitor technology as a part of your product or considering Serial Port Monitor software for an enterprise-wide deployment, we offer flexible and affordable corporate solutions designed to meet your needs.

Source Code License

Ordering Source Code license for Serial Port Monitor you receive all extensively commented programming source code (GUI sources are not included). Our leading developers will help you implement Source codes and understand the advanced part of the product.

Read our Source Code license terms and conditions

Site Licensing

Unlimited Site License grants you the right to install and utilize Serial Port Monitor application with GUI on unlimited number of computers by all workers of your company worldwide. It is the ideal solution if your company has representation offices in the different parts of the world.

If you know the certain number of computers to be equipped with Serial Port Monitor you may consider obtaining Limited Site License. The advantage of Site Licensing comparing to multiple Single licenses is one license key for all company computers.
What customers say
    Without the Serial Port Monitor from Eltima, I would not have been able to easily and quickly see the operation of the several serial ports carrying data to the navigation program...
    Jon Kinne Jon Kinne
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Serial Port Monitor
Log and analyze serial port activity
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