SerialMon is a free RS232 serial port monitor/sniffer software for Windows.
Features
· Freeware
· Monitors RS232 communication with simple hardware
· Protocol analyzer for ABB RP570
· Small
Requirements: Windows 2000 or later. Microsoft .NET Framework v2.0
SerialMon is free. But feel free to give a donation to support the author.
Download: SerialMon 1.1