Patent ID: 8433825
Filing Date: 2013-04-30
Classification: G05B

Abstract:
1. An operating device for an exchange of data with a decentralized process device in an automation system, comprising: a status unit having a plurality of states, the status unit being integrated into a portable operating device which communicates with the decentralized process device, wherein the plurality of states of the status unit correspond to a plurality of states of a state machine contained in the decentralized process device, wherein the decentralized process device is part of an industrial plant and performs a prescribed function in the industrial plant and is linked via a communication bus to a higher level control unit for exchanging data, wherein the plurality of states of the state unit are synchronized by the state machine such that a current state of the portable operating device corresponds to a current state of the decentralized process device, wherein, when the portable operating device and the field device are in a same state, data exchange between the portable operating device and the decentralized process device is limited to state-independent data, whereas other state-dependent data, which relate exclusively to the same state of the portable operating device and the decentralized process device, are not exchanged between the operating device and the decentralized process device but are available in the portable operating device or in the decentralized process device, and wherein the state-independent data received in the portable operating device or received in the decentralized process device are combined with the state-dependent data available in the portable operating device or the decentralized process device.