Downloading IonW - PLM 3.3.4.1 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. IonW.exe is the frequent file name to indicate the IonW - PLM installer.
The program lies within Internet & Network Tools, more precisely Network Tools. The following versions: 3.4 and 2.0 are the most frequently downloaded ones by the program users. This program is a product of MGP Software. We recommend checking the downloaded files with any free antivirus.
From the developer:
IonW – PLM is an application for setup and control of Insteon device network. You can install and configure Insteon devices quickly and easily. It is designed for easy installation and configuration of Insteon responder and controller devices. IonW software will open available serial ports until it discovers a PLM. The port information is saved to the configuration file for future use.
You may want to check out more software, such as PLM Data Mart, PDXpert PLM or Printec Label Maker, which might be related to IonW - PLM.