Introduction

The MBus library is a comprehensive TwinCAT PLC library for reading M-Bus devices.

The application of this PLC library significantly simplifies the engineering in these areas of building technical equipment.

The function blocks are object-oriented and characterised by a self-contained, more or less complex function.

The input parameters form the interface to the user. The parameters can be used to adapt the function block to its specific task within the associated system.

Thanks to strongly object-oriented encapsulation of complex system functions within the function blocks, comprehensive system programs can be set up with a few function blocks. The blocks are linked to each other via a small number of PLC variables.

The status of all objects is indicated through a large number of different output variables at the function blocks. The simplifies the connection of HMI and visualisation systems.

These features offer the following benefits for system programmers during system setup and for system operators during operation:

• Faster creation of system programs.
• Faster system parameterisation and commissioning.
• Guarantee of a very large range of system functions at all times.
• Improved readability of programs (prerequisite for long-term maintainability and expandability of the systems)
• Improved reusability of templates for systems or system components
• Easier familiarisation of personnel.
• Easier extension of existing systems.
• Programs are easier to document.