You could have downloaded MBTestPro 4.4 from our software library for free. You can run this PC program on Windows XP/7/8/10/11 32-bit. This program is a product of Rogue Engineering Inc. MBTestPro lies within Internet & Network Tools, more precisely Network Tools. The following versions: 4.4, 4.3 and 2.3 were the most frequently downloaded ones by the program users. Commonly, this program's installer has the following filename: MBTestPro.exe.
From the developer:
The Modbus Test Pro software package is designed to allow developers of firmware and hardware devices to test their modbus communications. Also, the software is useful as a tool for testing and troubleshooting communications with SCADA modbus networked devices before implementing the modbus communications into a SCADA HMI software package, such as Wonderware or Cygnet.
You may want to check out more software, such as FTP Navigator, CMUD or ICB2000, which might be similar to MBTestPro.