Retrofitting sensors in industrial plants with Single-Pair Ethernet (SPE) enables efficient and cost-effective modernization of existing systems. SPE significantly reduces cabling effort, as only one pair of wires is needed for data transmission and power supply. This facilitates the integration of new sensors and improves data communication from the sensor to the control system or even to the cloud. Additionally, SPE allows for higher data transmission rates and supports modern security mechanisms. This optimizes processes and increases productivity. An important factor to consider when retrofitting with SPE is compatibility with existing communication infrastructures such as real-time Ethernet systems.

The expansion of brownfield plants for the Industrial Internet of Things (IIoT) with Single-Pair Ethernet (SPE) enables seamless integration of modern technologies into existing systems. SPE also reduces cabling effort here, facilitating the retrofitting of sensors and actuators. This improves data communication and allows for end-to-end networking from the sensor to the cloud. Additionally, SPE supports high data transmission rates and modern security mechanisms. This significantly enhances the efficiency and productivity of existing plants.