Flowmeter Features Digital Communication

March 3, 2010

The 4800 Series mass flowmeters and mass flow controllers now offer, in addition to analog and RS232 communications, Profibus or RS485, which is delivered in a small field-installable module that mounts directly on top of the 4800 Series device. The 4800 Series with Profibus supports both DPV0 cyclic and DPV1 acyclic data communication. It has a standard 9-pin female D-connector for signal and an M5 connector for power. Baud rates from 9,600 up to 12 M are supported. The 4800 Series with RS485 has a physical layer with proprietary "S-Protocol" based on the HART command set. It has a standard 15-pin male D-connector for signal and power. Baud rates from 1,200 to 38.4K are supported.