Comm port viewer free download - Prolific USB-to-Serial Comm Port, SAMSUNG USB-to-Serial Comm Port, Prolific USB-to-Serial Comm Port, and many more programs. The name “Serial Monitor” has nothing to do with code “Serial.begin.” The IDE’s built-in serial monitor is JUST a simple terminal program. It opens a COM port, sends, and receives data. By using “Serial.begin” you are telling your Arduino to send the computer serial data.

• Serial Port Monitoring
• Serial Port Viewer Android
• Com Port Viewer
• Port Viewer Windows

RS232 standard is popular in many scientific directions and is widely used for lab equipment, quality and process controllers, various sensors, measuring tools, etc. However you may experience some issues while trying to analyze serial port activity. A number of aspects has to be taken into consideration: hardware and cabling, communication settings and protocols. To be able to perform COM monitor activities successfully and detect any issues with serial data, you'll need a reliable serial port sniffer with a comprehensive RS232 activity log.

Contents

1. Serial Monitor by Eltima Software

First on our list is Serial Port Monitor - a high-quality COM port sniffer product that can log, display and help you analyze RS232/422/485 port activity in the system. Getting all the data from this useful app allows for quality application and drivers development, as well as testing and debugging of COM port devices. No additional hardware is required for RS232 port Monitor solution by Eltima. There are Standard and Professional editions depending on your needs.

• With RS232 Analyzer you can connect to ports that are already open and start monitoring at once. Data is captured in real time and displayed conveniently. Data packets are easy to compare. You can record IOCTLs with all details and parameters.


• This COM port sniffer can monitor several ports at once so users can get the data on how apps interact with several serial devices within a session. The collected data can be viewed as table, line, dump or terminal, with sump view being able to show binary, ASCII data and port settings. Another great feature this serial port testing software offers is emulating data transmission to a serial device so you can see and analyze the reaction of a device to certain commands and data. You can send string, binary, octal, decimal, hexadecimal, or mixed data.


• The popular Modbus RTU and Modbus ASCII protocols are fully supported with all essential filters for the most effective analysis.


• Serial Port Analyzer is the most precise RS232 testing software thanks to the possibility to reproduce the monitoring session in order to review certain port behavior with the same parameters used in different conditions.


• The software comes with comprehensive help system and intuitive interface, which makes it fairly simple to use.



Serial Port Monitor customer's feedback

When trying to build a custom dashboard for a third party Li-Ion Battery Management System based on Texas Instruments BQ76940 and Atmel 8-bit line of microcontrollers, the integrated circuit manufacturer provided a 'brief' description of the communication protocol. This description wasn't enough or complete, so analyzing the protocol transmitted while using the manufacturer provided Windows based dashboard was a must. Eltima's Serial Port Monitor with the capability of 'sniffing' open serial ports on Windows platform was the best tool to do the job. Now I can see in realtime the protocol flow and understand the documentation, saving me a lot of trial and error while programming. I'm very happy of having found this piece of software.
Eduardo Roldan (Linux Expert, DIYer, EV Enthusiast)

2. Free Serial Protocol Analyzer by
HDD Software

Another software solution, without any hardware needed. Free Serial Port Monitor can intercept, display and analyze data exchange between a device and a serial application. Also a useful solution for software, device driver or serial hardware development that helps you test, debug, and optimize your product. It will dig into data flows and protocols and display everything in a comprehensive way.

With this program, you’ll be able to capture data and serial input/output control codes (IOCTLs) going through a COM port.

Free Serial Protocol Analyzer provides users working with COM ports with a full set of information — the app allows formatting data into different kinds of output. What’s more, it offers emulation of data sending on behalf of a monitored app. This option will clearly help you better check the reaction of a COM port to some particular data.

What is also convenient is that the software allows searching for a text in a Data View, Request View, and Console View. Plus, it’s possible to change the way the hex data displayed in Request View and Data View.

3. SerialMon

SerialMon is a free RS232 port analyzer for Windows that takes up little space. It can monitor serial port communication through a software or with a simple hardware solution. Supports ABB RP570, ABB SPA-bus and NMEA 0183 protocols.

4. Portmon for Windows

Portmon can monitor and display all serial port activity in a system. Also a good tool for tracking down possible issues with apps or devices configurations and analyzing serial port usage by the apps. This solution offers remote monitoring. You can monitor many remote computers at the same time. Multiple filters help you see the data conveniently and analyze it faster. Lottery wheeling systems software. This COM monitor can export captured data to a file like the previously reviewed solutions.

Thank you for reading our top serial monitor tools selection. Whatever you are working on, choose a reliable and best performing piece of software to achieve the most satisfying results.To find out the most comprehensive solution for your needs, read the overview of Serial Port Monitor utilities.

Serial Data Analyzer

Here’s why to choose RS232 Port Sniffer:

• It logs COM port data and saves it for later analysis

  Serial Port Monitor can sniff data transmitted over a serial port even when it is already used by another application. You can connect to any of the COM ports available in your system and capture its data in real time. This will help you identify problems that may appear during serial communication and prevent them.
  All monitoring data, including serial input/output control codes (IOCTLs) with full details and parameters, can be forwarded to a specified file or copied to the clipboard. What’s more, you can save the whole monitoring session and load it next time you need it.

• It’s able to monitor multiple ports within one session

  There’s no need to start a new session for every port you are going to monitor. The software allows you to sniff data from several COM interfaces within one session. This means you’ll be able to track the communication of your serial app with multiple devices at a time. The data will be recorded using the first-in, first-out method and shown as a single log.

• It offers five different data viewing modes

  Serial Port Monitor has five visualizers to display monitoring data. Those are table, line, dump, terminal, and Modbus views. You can use one at a time or all of them simultaneously. Also, you can apply IPR filters if you want to track down only communication events of a particular type.

• It can emulate sending data to a selected serial port

  When using the software in terminal mode, you can emulate sending some special commands to the monitored port as though they were sent from a monitored application. This way you get the ability to check the reaction of the COM port and device connected to it. The data you forward can be in a string, binary, octal, decimal, hexadecimal, or mixed format.

• It sniffs Modbus RTU and Modbus ASCII data

  In case your devices communicate using the Modbus protocol, you can read and analyze their data flows as well. COM Port Monitor parses Modbus data and shows it in the corresponding view.

• It allows comparing monitoring sessions

  The software provides you with the great ability to compare your current monitoring session with the one you saved previously. The two sessions will be displayed in two adjustable windows so that you can easily see all the differences between them.

Serial Port Monitor full features list

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

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

The “Comments” section in the Table view

Quick filters customization in the toolbar

A new data redirection file can be created when monitoring is inactive

The statistics in status bar from first to last highlighted IRP in the Table view. The IRPs in Table view now have the transcript hints from the Line view

Filter data by ports

The data that an application tried to write to port is displayed additionally to actually written data

The automatic scroll for the Terminal view can be disabled

Instead of overwriting the existing data in the file one can continue writing to it with the new command line option

Compare STANDARD and PRO/Company versions

#	Feature	Standard	Pro / Company
1	Monitoring serial ports which are already in use
2	Sending/receiving data to/from any COM port (Advanced Send Dialog)
3	The possibility to change COM port parameters from Advanced Send Dialog
4	Any serial port software/ hardware can be analyzed
5	Monitors any number of serial ports at once
6	Supports all COM-port types
7	Intercepts all data read from/written to PC COM port
8	Built-in search
9	4 types of customizable monitoring visualizers for viewing and logging data
10	Incoming and outgoing data streams logging
11	Tracing all serial input/output control codes
12	Copying all recorded data to clipboard
13	Saving, loading and exporting all monitored data
14	Full duplex mode
15	Unique stream filtering tools with presets
16	The software offers a free trial, which allows using it as a free serial port monitor tool for 14 days

I have tried a good number of serial sniffers, but most of them were stacked with the excessive features that only increased the cost of the tool, but did not directly influence its main purpose – conveniently collect serial data. After spending some time on research, I opted for Serial Port Monitor as the most optimal variant among other similar programs. As I decided for myself, there is no need to spend money on 2 separate pieces of software, when Serial Port Monitor perfectly combines them: a serial sniffer and a terminal emulator. A sniffer that will not only collect all data but will also accessibly display it is essential during the development and debugging of the applications or hardware that work with serial ports. Serial Port Monitor’s data visualizers provide exactly that. We mainly use it for debugging serial commands (byte stream) coming from various sensors on one of our mobile robotics bases. We also use it for any kind of weird serial issue that we can't figure out. It's a great product though! PrevNext

• • 4.8

  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..

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