Current version: 1.8.2      
         
Vellamod - Modbus/TCP
packet
editor

Download 32-bit version

     
 

Download 64-bit version

     
Peruna - Modbus/TCP
router
       
 

Ananas in a nutshell

     
  Ananas - Modbus/TCP server/client - supports two simultaneous TCP connections.
Full range (0 - 65535) of 16-bit input and holding registers is supported.
Ananas has an integrated Modbus/TCP client, which utilizes server's address space.
DDE connection to registers (input and holding) supported.

Features like logging server's data exchange, generate exceptions and reply
with wrong TI, makes Ananas handy for Modbus client functionality testing.
Only one executable file, no need for installation routines before usage.

And it's freeware. Use it, spread it, distribute it - no costs whatsoever.