Nuremberg ? 23.11.05: At the end of September 2005, PROFIBUS International (PI) released PROFIsafe V2 mode for use on PROFIBUS DP and PROFINET IO. A uniform profile has been specified that is available for safety applications with PROFIBUS and PROFINET. The V2 mode is compatible to the previously on PROFIBUS DP limited V1 mode and permits mixed operation on PROFIBUS networks.
The goal in developing the PROFIsafe V2 mode was to develop a uniform profile for both PROFIBUS and PROFINET platforms that can be used in all markets including production automation, drive technology and motion control, as well as process automation. The previous black channel principle has been maintained. The safety layer is independent of the communication system and also includes the backplane busses of the PLC and field devices. PROFIsafe in V2 mode takes into account the special properties of Ethernet networks, such as the expanded address space and active network components, such as switches.
As an open concept for safety-related applications, PROFIsafe implements the user requirement for coexistence of standard and safety communication on one cable. It can be used for safety applications to category 4 or SIL3. A positive TÜV concept assessment for the V2 mode is available in the mean time. The corresponding tests from BGIA have also been completed to a large extent. There is a 'PROFIsafe driver for F devices' certified by TÜV for facilitating the development of safe field devices.
PROFIsafe is currently standardized internationally in IEC 61784-3. Initial products with V2 mode will be presented on the SPS/IPC/DRIVES, among others, at the PROFIBUS booth.