Eltima Software

Eltima Software

Serial Port Monitor Software



Serial Port Monitor is a professional and powerful system utility for RS232/RS422/RS485 port monitoring. COM monitor displays, logs and analyzes all serial port activity in a system. This is an ideal way to track down problems that may occur during application or driver development, testing and optimization of serial devices, etc. Serial Port Sniffer also offers advanced filtering and search, professional built-in terminal and data exporting options, user-friendly and flexible interface among its key advantages. It is a completely software solution, you don't need any additional hardware to use it. Serial Port Monitor can be purchased as a Standard, Professional or Company Edition.

  • Analyze serial port activity Serial Monitor can connect even to a COM port already open by any application to start sniffing it right away. All data going through the monitored port will show up in various views in our monitoring tool. Table view packets feature the transcript hint from Line view. Everything is captured in real-time, so you can track down problems immediately. The synchronized highlighting of similar IRPs in different views is especially convenient for comparison purposes.
  • Moreover, you can redirect all monitoring data to the specified file or you can copy all recorded data to clipboard. COM Port Monitor gives you the ability to intercept and record all serial input/output control codes (IOCTLs), tracking their full details and parameters. You can save any monitoring session and load it next time whenever you need it.
  • Monitor several ports within one session Serial Port Sniffer has a unique functionality of monitoring several COM-ports simultaneously. Now you can collect data on how apps interact with two or more ports and a few devices concurrently within one session. Data received and sent during monitoring will be presented (recorded) in a single log on a first-in first-out basis; this makes it more convenient for analysis.
  • Read captured data in different ways You can view data in all 4 monitoring views at the same time: table, line, dump or terminal mode. Dump view can display binary, ASCII data, as well as port settings. COM Monitor lets you choose monitoring filters, thus saving your time and letting you track down only those events you are interested in. You can also apply Capture options during the ongoing monitoring process.
  • Emulate data sending to serial device You can send data in various formats (string, binary, octal, decimal, hexadecimal, mixed) to monitored serial port as if it was sent on behalf of monitored application using terminal mode feature of Serial Monitor. Thus you can follow the reaction of the monitored serial device to some special commands and data.
  • Full support for Modbus RTU and Modbus ASCII protocols COM Port Monitor will help read and analyze Modbus data with its new efficient filters. With the help of our serial monitoring software you can easily establish connection with RS485/RS422/RS232 devices and analyze their data as well.
  • Playback and session comparison Serial Monitor offers a unique session playback possibility - you can send data received from the app to  the serial port again. This way you can review port’s behavior on receipt of the same data for more precise monitoring results. Also you can compare sessions with automatic display of differences between them.

  • Start/stop monitoring the serial port that is already opened by another application (available in Professional/Company Edition only)
  • Completely compatible with Windows 10 (both x32 and x 64)
  • Serial Port Monitor and all of its internal drivers are digitally signed
  • Any number of serial ports can be monitored simultaneously
  • Possibility to add several ports for monitoring in one session
  • Supports all COM-port types: standard on-board ports, extension board ports, software-based virtual COM ports, bluetooth serial ports, USB to SERIAL cradles, etc
  • Data transmission monitoring and logging
  • Advanced send dialog: easily send various types of data, apply aliases for faster typing and automation, send files and loop functions and commands, change serial port parameters on-the-fly (available in Professional/Company Edition only)
  • Real-time data capturing

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