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The RS232 communication protocol is used in a wide variety of scientific applications that employ peripheral devices to control and measure various physical aspects of a process or phenomena. These devices use serial ports, and it can be difficult to effectively monitor activity flowing through these interfaces. Analyzing data transmission and addressing problems with serial data requires a robust serial port monitor that can log a system’s RS232 activity.
Many different solutions are available that can perform COM port monitoring to better understand how your connected devices are operating. This article will show you several products that can efficiently monitor and analyze the activity of your system’s serial ports.
Unlike hardware-based loggers, a software serial port sniffer can collect data both from real and virtual ports, and doesn’t require any additional adapters. Plus, an app wouldn’t have disadvantages common for hardware gadgets, s.a. signal attenuation, static-charge accumulation, etc.
Let’s begin with the best software serial port sniffers.
Can you imagine an ideal Serial Port Sniffer software? Probably you would expect it to be a simple yet functional solution able to easily read, record and display data transmitted through any real or virtual serial port available in your Windows system. Luckily, all these and many other advanced capabilities are offered by a dedicated Serial Port Sniffer utility developed by Electronic Team, Inc.
Electronic’s Team solution is one of the most popular professional apps for data sniffing and logging. It provides convenient filtering and search options, built-in terminal, and four different data visualizers which can display the captured serial data in different formats. You can select table, line, dump, or terminal mode or enable all of the views at a time. Also, can easily use RS485 sniffer for decode industrial protocols such as Modbus RTU, Modbus ASCII, Modbus TCP/IP.
With this Serial Port Sniffer, you’ll be able to access and start logging data from COM ports which have already been used by other utilities.
HDD Serial Port Monitor is another friendly COM port sniffer for Windows, which allows monitoring and recording data from RS-232, RS-422, and RS-485 interfaces. This handy solution will help you easily analyze serial port activity and detect any issues with serial data communications.
Serial Port Monitor freeware gives you the way to sniff several COM ports simultaneously, so you can see how your apps interact with several serial devices within one session.
This app is especially useful for those who develop serial software, device drivers or serial hardware. It is a convenient tool for testing, debugging, and optimizing RS232 products.
One of the key advantages of this solution is that you can use this software sniffer of RS232 ports for free, but with limitation.
Serial Monitor is a reliable solution which works with high data transfer rates and makes it possible to easily change the way the raw data is displayed. Even if the session is completed you can still save the monitored data for its further analysis. This RS232 serial communication software is friendly and flexible and definitely deserves your attention if you’re a serial app developer or tester.
Serial Port Sniffer by AGG Software can monitor all traffic sent and received by a particular serial port. What’s especially convenient is that the data sent can be highlighted in the software window.
This serial port sniffer will also display the transferred data in any format (hexadecimal, decimal, or any other). This way you can identify the repeated sequence of data blocks without closing the monitoring app.
Compared to most other com port sniffers, Serial Port Monitor by AGG Software has several major advantages:
Logging of serial port data is no longer a problem for those who use RS232 bidirectional data sniffing interface provided by Avisaro.
The compact hardware unit is designed to record data communicated between two devices over the RS232 protocol. Together with the Avisaro Data Logger app, this sniffer box is used to capture data transmitted in both the Rx and Tx directions and store it in a table format. That means you can use Excel or any text editor to read your serial data.
RS232 "Sniffer" Interface is widely applied for RS232 communication debugging and re-engineering of data protocols.
RS232 hardware sniffer produced by Stratus Engineering will help you resolve the latency and time-tagging issues commonly faced by users of traditional dual COM port sniffing tools.
The clear benefits you get with EZ-Tap RS232 Pro hardware:
This RS232 packet analyzer can monitor full and half duplex serial communications and stream data to a dedicated RS232CPM COM monitor application.As well as an active rs232 sniffer cable that monitors the DTE/DCE and RTS/CTS lines in addition and Tx/Rx lines. EZ-Tap RS232 Pro is equipped with a male DB9 connector on one end and a female DB9 connector on the other end. Thanks to this, it can be inserted between two COM-based devices that need to be sniffed.
To use this solution, you just need to connect it to a USB port of your PC with the help of a USB A to mini B cable, install its drivers as well as the supplied RS232CPM app and start sniffing.
A nice thing about the RS232 COM Tap is that it can also be used with any RS232 terminal app supporting virtual COM ports, for instance, Windows HyperTerminal.
The Hardware Serial Tap is a simple yet efficient sniffer tailored for monitoring of RS232, RS485, and TTL-level UART communications. This sniffer board is natively supported via the Serial Tap plugin.
Here’s how the solution works:
Modbus is a master/slave serial communication protocol popular in the industrial environment mainly because it’s openly published and royalty-free. Originally It was used to connect various industrial electronic devices over RS-485 protocol, though many other versions are available now for RS-232, RS-422, and TCP/IP (Modbus TCP) protocols.
Modbus protocol has a broad scope of application, particularly Modbus ASCII and Modbus RTU versions. The second is used the most among all Modbus protocols. So, if you are in the process of developing software to communicate with some electronic devices through the Modbus RTU, you’re definitely going to need a high- grade Modbus RTU sniffer. It’s a specialized RS485 Protocol Analyzer that will help you to analyze data sent through the protocol. The same applies to the Modbus ASCII version, with the only difference that you’ll need another version of a port scanner software.
Modbus Sniffer by Electronic Team, Inc. allows you to not only monitor all the relevant data sent through Modbus ASCII and Modbus RTU protocols but also log it for future analysis. It has a user-friendly interface and displays data in different view modes. On top of that, this particular protocol analyzer provides an opportunity to filter collected data for more accurate analysis.
Serial Port Sniffer is a specialized system utility that captures serial data packets transferred by another program to a serial app or device over an RS232 interface.
With an efficient sniffer tool, you can monitor the activity of any COM port in your system. Also, it will help you test serial applications or device drivers you’re developing. If the monitored program is created by you, your COM port sniffer can serve as an RS232 debugger allowing you to track down errors which may occur during serial data exchange.