Patent ID: 9736020
Date: 2017-08-15
CPC Classifications: G05B,H04L

Claim:
1. A master device of Profibus DP (Process Filed Bus Decentralized Periphery), the master device comprising: first storage in which imaginary network configuration information is pre-stored; second storage for storing network configuration information; a Profibus master state machine with circuitry for: a slave information collector for requesting network configuration information related to the plurality of slave devices from the Profibus master state machine and collecting the requested network configuration information when the network configuration information is not stored in the second storage; and a Profibus communication interface with circuitry for performing communication with the plurality of slave devices under control of the Profibus master state machine, wherein the Profibus master state machine obtains the network configuration information by performing communication with the plurality of slave devices when there is an information collection request from the slave information collector and provides the slave information collector with the obtained network configuration information and stores the obtained network configuration information in the second storage.