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 “Session→New 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.