The method of providing fieldbus communication and current through a hand-held maintenance instrument in a danger zone by means of an individual wiring harness may

摘要

A plug connector arrangement for testing a portable field device comprises a two-wire communications line for providing communication between a hand-guided maintenance instrument and a field device, a first two-pole plug for providing current and communication signals to the field device and a bridge plugs for providing current to the field device by means of the two-wire communications line.