Industrial PROFIBUS to RS232 converters & gateways

Industrial PROFIBUS to RS-232 converters

In this section of our store, you will find a selection of PROFIBUS to RS-232 converters designed for use in industrial automation systems. The PROFIBUS protocol (Process Field Bus) is widely used in factory and process automation for fast and reliable communication between programmable logic controllers (PLCs), sensors, actuators, and decentralized I/O systems. By using a PROFIBUS to RS-232 converter, you can easily integrate devices that use the standard RS-232 serial interface—such as barcode scanners, industrial PCs, terminals, control panels, and measuring instruments—into PROFIBUS-based industrial networks.

Get to know our PROFIBUS to RS-232 converters better

Each PROFIBUS to RS-232 converter in our range is built to industrial specifications, featuring robust construction, a wide power input range (typically 12–35VDC or 24VAC), and DIN rail mounting support for easy integration into control cabinets. The devices are designed for harsh environments and can operate reliably in extended temperature ranges from -40°C to +85°C. Their compact design makes them ideal for installations where space is limited, such as within machinery enclosures or remote control panels.

Our converters support PROFIBUS DP-V0 protocol and provide high-speed transmission—up to 12 Mbps on the PROFIBUS side and up to 115200 bps on the RS-232 side. The galvanic isolation (up to 3000V) protects the devices and connected equipment from ground loops and electromagnetic surges. RS-232 interfaces are provided on standard DB9 or terminal connectors, ensuring compatibility with most industrial and legacy equipment. Some models also support configurable baud rates, parity, and stop bits for maximum flexibility in different integration scenarios.

Configuration is simple and does not require any paid licenses. Each converter comes bundled with user-friendly software that allows for fast parameter setup. Once the communication settings are defined, the software automatically generates the required GSD file, which can be imported into the PROFIBUS master controller (e.g., Siemens S7 series or compatible DCS systems). Diagnostic functions integrated into the software help streamline troubleshooting and ensure quick commissioning of the converter in the field.

Our PROFIBUS to RS-232 converters are used in a wide range of industries including energy, HVAC, water treatment, packaging, and food production. These devices enable communication between modern PLCs and older serial devices, making them a cost-effective solution for extending the lifecycle of existing equipment. They also play a crucial role in retrofitting legacy systems, where replacing RS-232-based devices with newer alternatives would be costly or technically impractical.

Whether you're integrating an RS-232 device into a complex PROFIBUS environment or looking to modernize your industrial network without replacing all connected hardware, our converters offer a reliable, tested, and supported solution. Their proven compatibility, robust design, and ease of use make them the preferred choice for engineers, system integrators, and OEMs across Europe.

Explore our range of industrial PROFIBUS to RS-232 converters and choose the model that meets your requirements. For questions or project support, contact our team — we’ll be happy to help you design a robust and efficient communication solution.