PROFIBUS PA
A class with identifier
http://staging4.data.posccaesar.org/iso/15926-4/rdl/RDS2222909
Definition | A <PROFIBUS PA> is a <PROFIBUS> that is used to monitor measuring equipment via a process control system in process automation applications. This variant is designed for use in explosion/hazardous areas (Ex-zone 0 and 1). The Physical Layer (i.e. the cable) conforms to IEC 61158-2, which allows power to be delivered over the bus to field instruments, while limiting current flows so that explosive conditions are not created, even if a malfunction occurs. The number of devices attached to a PA segment is limited by this feature. PA has a data transmission rate of 31.25 kbit/s |
ISO number | 19687 |
RDS number | RDS2222909 |
Source | Electrical |