SCADA LAquis 4.7.1.7 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free program was originally created by LCDS.
The most frequent installer filenames for the program include: aq.exe and bklaquis.exe etc. The following version: 4.1 is the most frequently downloaded one by the program users. We recommend checking the downloaded files with any free antivirus. The program lies within System Utilities, more precisely Device Assistants.
From the developer:
SCADA LAquis is a program for data acquisition, process supervision, and industrial automation. This program can receive PLC tags via OPC from supported devices. You can generate reports in various formats and customize then using scripting language and graphics sheets.
You may want to check out more software, such as Z-Scada Direct, LAquis or SCADA/HMI Workstation Screen Saver, which might be related to SCADA LAquis.