The modular architecture of our automation systems allows the configuration of compact systems (LOPs), e.g. exhaust gas monitoring systems, gearbox control and monitoring systems and engine safety systems. The I/O components used can be quickly and easily adapted thanks to an IEC 61131 compliant PLC with CoDeSys, which can be flexibly programmed to suit new requirements. This PLC can be configured and programmed using a convenient web browser interface. This ensures the greatest possible flexibility and allows modification requirements to be met even during the commissioning stage. In addition to simple LC displays, modern touchscreen displays are also available and provide a clear overview of all relevant monitoring and control data using our NORIVIS visualisation software. The compact systems can be linked to other systems (e.g. engine management systems) at any time via standardised interfaces (e.g. the MODBUS protocol).