Serial Port Tester

Serial Port Tester (aka Serial Port Monitor) is a system tool that provides a means to monitor, display and analyze serial port activity. While RS232 is the recommended standard for serial communication, Serial Port Tester is not solely a RS232 port tester. It works on RS422 and RS485 serial interfaces as well. Monitoring serial data transmissions is for anyone with the need to develop, test and debug firmware as well as any software or hardware solutions that make use of a serial port. You can test any serial port on Windows 7/10.

COM Port Tester has a user-friendly interface with handy features like a customizable search and filter function, and the ability to export the data from a monitoring session. COM Port Tester is a standalone utility that does not require additional software or hardware to perform its function.

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Serial Port Monitor Integration

Whether you're looking at embedded Serial Port Monitor solution as a part of your product you can consider Serial Port Monitor ActiveX as a component for implementation.

Find out more about SPM AX >

Why do you need Serial Port Tester?

• How Serial Port Tester can help with general tasks

  You can set up test filters according to the specific task at hand. All standard serial control requests are supported including I/O Request Packets (IRP); the filtering of IRPs and input-output control or IOCTLs. Various views are available in the application user interface to suit your particular needs. These views are Terminal, line view, dump view and table view.

• Testing of multiple COM ports

  With COM Port Tester, it is possible to test and monitor multiple ports simultaneously. This allows you to analyze how different devices and applications interact within a single session. All data is logged using a first-in, first-out (FIFO) approach.

• Analyzing serial port activity

  It is possible to track, log and display all the activity of all the serial ports within the system. All the data that is collected is displayed in a simple interface with multiple filter options, making it easier to view only the information that is pertinent to the particular task at hand. It is also possible to save the data from previously monitored sessions for the purpose of data comparison. The user interface of Serial Port Tester allows you to view this data side by side in separate configurable windows for ease of comparison.

• Emulating the exchange of data

  RS-232 Test Software provides a facility to send test data to a monitored port, emulating actual data from an application. To do this, simply select the port to which you want to send data to, configure the baud rate, data bits, parity, flow control and stop bits as required.

• Analyzing Modbus RTU and ASCII data

  You can also monitor and analyze Modbus Remote Terminal (RTU) and Modbus ASCII data packages. This is an advanced feature of Serial Port Tester that provides you with an efficient and convenient way to visualize Modbus data.