Inverter communication Easy implementation of photovoltaic projects

In order to guarantee the cost effectiveness of photovoltaics systems, all components must reliably withstand challenging conditions over long periods of time. However, even the best hardware can only be commissioned in a straightforward way, without errors, if the required software is fully developed and tested.

Existing function blocks enable the use of different inverters or energy measuring devices without laborious analysis of the protocols. Thus, when it comes to programming, the focus can be placed on data processing and communication.

Phoenix Contact provides software libraries specially for photovoltaic systems, which are continuously expanded by adding functions. Ready-made function blocks enable straightforward communication with inverters. They enable, for example, general inverter information, such as serial numbers or the inverter type, to be read out. Furthermore, photovoltaic tracking systems can also be controlled and all standard AC and DC measuring values determined, e. g., the current feed-in power or yield. Even acquiring inverter-specific event and status messages is no problem. The portfolio is completed with function blocks and a program template for controlling the reactive power feeding of a photovoltaic system. Phoenix Contact supports system integrators and users with compatible function blocks that use the SunSpec® open standard.

The SunSpec® Alliance is a global user organization of over 170 participants from the solar industry. In order to enable plug-and-play solutions, it pursues the goal of defining communication standards. This reduces the costs and complexity of solar-powered systems and makes them more attractive to investors.