MODBUS MASTER MONITORING

A control device (CD) managing outputs of a set of Input/Output modules and implementing a Modbus server communicating according to a Modbus TCP/IP communication protocol with Modbus clients, comprises:a network interface (NI) configured to receive requests for commanding one or more outputs from th...

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Bibliographische Detailangaben
Hauptverfasser:	GORISSE, François, O'BOYLE, James, CANEPA, Lorenzo
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A control device (CD) managing outputs of a set of Input/Output modules and implementing a Modbus server communicating according to a Modbus TCP/IP communication protocol with Modbus clients, comprises:a network interface (NI) configured to receive requests for commanding one or more outputs from the Modbus clients,a storage unit (SU) configured to store, for each request received from a Modbus client, an IP address of the Modbus client and the number of requests received from said Modbus client,a processing unit (PU) configured to determine a Modbus client as Modbus master for said one or more outputs when the frequency of requests commanding said one or more outputs, received from said Modbus client, is above a threshold