IS200STAOH2A
IS200STAOH2A
IS200STAOH2A
450m, 1200m and 1900m (which can be extended with repeater). It can be powered by bus and support essential safety equipment and non-essential safety bus equipment. H2 is a high-speed bus with a transmission rate of 1Mbps (the transmission distance is 750m) or 2.5bps (the transmission distance is 500m). The number of nodes in each segment of H1 and H2 can reach 32, and the number can reach 240 after using repeater. Hl and H2 can be interconnected through a bridge. FF’s outstanding features are interoperability, improved process data, earlier predictive maintenance, and reliable security.
3.2 Process Fieldbus Profibus
Profibus, proposed and strongly advocated by Siemens, has become the German national standard DIN19245 and the European standard EN50170. As an open and independent bus standard, ProFIBUS serves as a communication network in machinery manufacturing, industrial process control and intelligent buildings. Profibus consists of PROFIBUS-PA, PROFIBUS-DP, and PROFIBUS-FMS series.
Profibus-PA (Process Automation) is used for low speed data transmission of process automation, its basic characteristics are the same as FF H1 bus, can provide bus power supply and essential security, and is supported by ASIC and software.
