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"I liked COM Port Monitor straightaway. Its interface was clean, clear and easy to understand. It did exactly what it said it would do and the flexibility of saving the files for later analysis was very powerful."
Serial Port Monitor is an advanced tool for RS232/422/485 COM port monitoring. Intended for professional users, it can monitor, display, log and analyze all serial port activity in the system. While being user friendly, the utility provides advanced filtering, searching and representation capabilities.
Serial Port Monitor can be purchased as a Standard or Professional Edition
Serial Port Monitor can connect to any COM port (even to the one already opened by some application) and immediately start monitoring the port. As this tool captures data in real time, it may be very useful in troubleshooting. Serial Port Monitor lets you intercept and record all serial input/output control codes (IOCTLs) and track their settings and parameters.
The captured data can be redirected to a specific file or copied to the clipboard. Any monitoring session can be saved and loaded whenever needed.
View captured data in various ways
Serial Port Monitor lets you view data in any of the four view modes: table, line, dump, or terminal. You can set monitoring filters in order to keep track of specific events only.
Emulate data transmission to a serial device (available in Professional version only)
Using the terminal mode feature of Serial Port Monitor, you can send data to the serial port being monitored in any format you need (string, binary, octal, decimal, hexadecimal, or mixed), e.g. to make that data look as if it originates from a specific application. This approach may be handy for following the response of the device connected to the COM port to certain commands and data.
Full features list:
Start/stop monitoring the serial port that is already opened by another application (available in Professional Edition only)
Serial Port Monitor is completely compatible with Windows 7 /Vista (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
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 Edition only)
Real-time data capturing
Various monitoring visualizers: table view, line view, dump view, terminal view
Incoming and outgoing data streams logging
Redirected file can be either split into a bunch of files or can be limited to user-defined size
Possibility to export raw data to a file in Terminal view
Multi-colored commands display in table view
Any software/hardware that works with a serial port can be monitored
Intercept and record all serial input/output control codes (IOCTLs), tracking their full details and parameters
Customizable monitoring session logging (several timestamp formats, different scale of notation, customizable logging string length etc.)
Convenient and flexible monitoring session's management: saving and loading all monitored data, exporting and redirecting to file functions
Monitoring session exporting (HTML, ASCII text, UNICODE text, Exсel CSV) and automatic redirection to file (Serial Port Monitor will automatically append all monitored data to a file in real-time)
Supports copying all recorded data to clipboard
Supports adding data automatically before and after packet to be transmitted
Full duplex mode supported
Control lines status visualized
Unique stream filtering tools with presets
All baudrates supported
Flexible configuration: stopbits, flow control, parity control, data bits, highlighting, etc.
User-friendly flexible interface: the software is designed to provide easy access to serial ports, no programming skills are required
Demo version limitations:
fully functional 14-day trial
Windows XP (32-bit and 64-bit)
Windows 2003 (32-bit and 64-bit)
Windows 2008 (32-bit and 64-bit)
Windows Vista (32-bit and 64-bit)
Windows 7 (32-bit and 64-bit)
Windows 8 (32-bit and 64-bit)
Windows server 2012
Monitoring serial ports which are already in use
Sending/receiving data to/from any COM port (Advanced Send Dialog)
The possibility to change COM port parameters from Advanced Send Dialog
Any serial port software/hardware can be analyzed
Monitor any number of serial ports at once
Supports all COM-port types
Intercepts all data read from/written to COM port
4 types of customizable monitoring visualizers for viewing and logging data