In addition to IoT-capable devices, remote procedure calls in Thingsboard can be used to execute any programme on computers connected to the internet. Thingsboard thus offers the possibility of combining data from different systems on distributed computers, such as measurement data or data from simulations, in a simple way. In the IoT.H2O project, for example, pipe network simulations will be carried out continuously in the future based on current measurement data. With a large number of sensors in the network, the pipeline network can thus also be continuously monitored by comparing simulation and measurement. Furthermore, software models for a virtual pump test bench and a virtual drinking water plant are to be developed using the example of the EWR Net AG plant in Worms.