Monday, November 18, 2013

How to sniff RS232 port


Just follow these simple steps to start sniff RS232 right now!
1. First of all you'll need to download RS232 Sniffer. Here is the link - http://www.com-port-monitoring.com/download/serial_port_monitor.exe.

  • Open Eltima RS232 Sniffer software.
  • Now you can see its main menu. Press Сtrl+N or choose “SessionNew session” 
  • In a new session window choose the desired visualizers and activate all views. 
  • Later on you can decide which view options are most suitable for you and select only those ones. 
  • FYI:
    Table view shows all recorded IRPs.
Line view shows all data about requests through serial line. 
Dump - sent and obtained data passed through serial line.
Terminal - shows all received data in ASCII code.


By the way this system utility can also monitor, analyze and sniff RS485 and RS422 COM ports.