Merbon Visual is a free application for remote access to SoftPLC/MiniPLC/mark... controllers for heating, ventilation, air condition and energy monitoring and control.

With Visual, the control panel of your controller is always at your fingertips. The controllers must be programmed and commissioned, and must be accessible over the Internet or in your local network.
For communication with SoftPLC/MiniPLC process stations, the app uses a LCD menu definition file, which must be uploaded into the mobile device, and displays values in a similar way as they are presented on the LCD display of the PLC.
The mark… process stations use apart from the LCD menu also graphic panels. The text menu definition and graphic definition are uploaded as separate definition files.
Depending on the user rights, it is possible to read / change values, such as temperature, humidity, pressure, light intensity etc., inclusive alarm acknowledging and time schedule setup.
The application supports more PLCs and can be configured for local access from a LAN as well as remote access from the Internet. The switching between local and remote access is fast and simple.

What’s New


Download of definition file from the PLC web server
Saving of definition files
Change in opening of the definition file
Fixed: Master alarm clicktrough
Fixed: word/dword/lword/byte datatypes writing
Fixed: Display of buttons at objects Digital Setter, Digital Indicator, Digital Setter ComboBox and Digital Setter Buttons
Fixed: Text string display at objects Text Setter and Value Indicator
Fixed: Terminal freezing when String datatype used


Domat Control System s.r.o.
35.4 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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