Mervis IDE

Mervis IDE (integrated development environment) is the cornerstone of the Mervis platform. It allows you to:

• Connect to PLCs, even over the internet
• Manage the configuration of PLCs including updates of Mervis RT
• Create programs in FBD or ST languages according to IEC61131-3 standard
• Create libraries of functions and Modbus devices to easily reuse them in another projects
• Build web-based HMIs (human-machine interfaces)
• Detect connected 1-Wire sensors and UniPi extensions
• Upload and debug the solutions to PLCs
• … and many more

The Mervis IDE work project is called a solution. The solution consists of connection parameters to your PLCs, their configuration, programs, libraries and HMI interfaces.

On the next screenshot, you can see a typical workspace of a Mervis IDE solution

In the Left panel, you can see expanded tree for PLC, showing a list of configured communication channels (1-Wire, Modbus) and connected devices. In the Executable Projects you will have all your programs and function libraries. In the HMI Projects you can see a list of HMI windows.

In the Main window, you can see a FBD program under the debugging mode. The left column of the programming canvas contains inputs of the program. In the middle section, you can place function blocks (FBs), which enclose a certain functionality. For example block “mul” has two numberical inputs (in1 and in2) and one numerical output (⇒). The output