MEETING A COMMUNICATION RESTRICTION REQUIREMENT IN A PROCESS CONTROL SYSTEM

摘要

An industrial process control system (10) comprises a process control device (12) a first wireless communication network (11) a second wxreless communication network (27) and a first group of wireless field devices (16 18 20 22 24 26) interfacing the industrial process and being associated with the first network. The network supervisor device investigates if the field devices of the first group are able to communicate with the process control device via the first network while meeting a communication restriction requirement (?T) and redirects in case the requirement is not met communication between some of the field devices in the first group and the process control device to the second network so that the requirement is met for a first part (16 18 20) of the field devices using the first wireless communication network and for a second part (22 24 26) of the field devices using the second wireless communication network.