PROFIsafe is a safe communication protocol based on PROFIBUS and PROFINET that enables the transmission of safety-relevant data. It is used to safeguard industrial automation systems and machines and is thus an important component of functional safety.
The PROFIsafe technology consists of a safety telegram, which contains the safety-relevant data, and a safety proxy, which encrypts this data and sends it to the receiver. In the event of a failure or error, the safety proxy becomes active and interrupts the communication between the devices to ensure a safe response.
PROFIsafe was developed to meet the requirements of international safety standards such as IEC 61508, IEC 62061 and ISO 13849-1. It offers various safety functions such as emergency stop, two-hand operation and safety gate monitoring, which enable machines and systems to be operated safely.
In addition, PROFIsafe is easy to implement and maintain. It can be used in combination with a wide range of automation components and devices and supports a high number of safety functions that can be individually tailored to the needs of the user.
In summary, PROFIsafe is a powerful safety protocol that enables safe and reliable communication in industrial automation. It helps to improve occupational safety, minimise the risk of accidents and increase productivity.
PROFIsafe was developed by the PROFIBUS User Organisation (PNO) in cooperation with various leading automation manufacturers. The PNO is a worldwide community of interest of users, manufacturers and research institutions that is committed to the dissemination and development of PROFIBUS and PROFINET.
Schildknecht AG is a leasing member of the PNO and was the first company to transmit PROFIBUS and later PROFIsafe via radio.