ComEmulator - Serial and UDP Communication Emulator
Overview
Displays data received from devices connected via RS-232C or Ethernet (UDP) and lets you edit data to send
You can send at any time, and it can also reply automatically to received data
Use cases
- Communication tests with PLCs
- Checking communication with barcode readers
- Verifying the behavior of serial devices
- UDP protocol development
Screenshot
Top of the screen
Area for RS-232C or Ethernet (UDP) connection settings
Left side of the screen
Area that shows sent and received messages
Right side of the screen
Area for creating messages to send and selecting auto-reply messages
Example
Connect an OMRON PLC and a PC via Ethernet and send a message from the PC to read memory values from the PLC
The command is a FINS command that reads 10 words from DM0 (below). Type it in the manual send text box and press ENTER to send
(destination PLC FINS address 0,1,0; source (PC) FINS address 0,48,17)
If the read succeeds, the response message is received as in the screenshot and the values from DM0 are read
FAQ
Is ComEmulator free?
Yes, it is free to use.
Which communication methods are supported?
RS-232C serial communication and UDP communication are supported.
Can it be used to check communication with PLCs?
Yes. It can also be used for PLC communication tests such as FINS communication.
Can it auto-respond to received data?
You can configure it to reply automatically to received data.
Related tools
Download
Tested on: Win10