The master device of Profibus DP according to the present disclosure automatically configures network by performing a communication with a plurality of slave devices connected through Profibus, the device including a Profibus communication module configured to perform a communication with a plurality of slave devices, an imaginary network configuration information storage configured to be stored in advance with imaginary network configuration information, a network configuration information storage configured to be stored with network configuration information, and a Profibus master state machine configured to obtain network configuration information by performing a communication with the plurality of slave devices in response to the imaginary network configuration information stored in the imaginary network configuration information storage, to store the obtained network configuration information in the network configuration information storage, and to perform a communication with the plurality of slave devices in response to the stored network configuration information.

A method of servicing a request during high pressure wellsite pumping operations to manipulate a valve in a manifold system having a plurality of valves includes receiving a plurality of valve configurations that would result in an overpressured manifold system and comparing the request to a proposed valve configuration that would result from a proposed valve manipulation. The method includes determining whether a pump to the manifold system is operating. The method further includes determining whether the proposed valve manipulation inhibits a flow path between the pump and an outlet of the manifold system and would result in an overpressured manifold system. The method also includes in response to a determination that the proposed valve manipulation inhibits the flow path: blocking the proposed valve manipulation and presenting an operator with an override option.

A method of servicing a request during high pressure wellsite pumping operations to manipulate a valve in a manifold system having a plurality of valves includes receiving a plurality of valve configurations that would result in an overpressured manifold system and comparing the request to a proposed valve configuration that would result from a proposed valve manipulation. The method includes determining whether a pump to the manifold system is operating. The method further includes determining whether the proposed valve manipulation inhibits a flow path between the pump and an outlet of the manifold system and would result in an overpressured manifold system. The method also includes in response to a determination that the proposed valve manipulation inhibits the flow path: blocking the proposed valve manipulation and presenting an operator with an override option.

A process control arrangement (PKA), having a number of fieldbus systems (DP1, PA1, FH), especially different fieldbus systems (DP1, PA1, FH), and having a number of fieldbus interfaces (PAP1, PAP2, PAP3), wherein each of the fieldbus systems (DP1, PA1, FH) is connected to at least one of the fieldbus interfaces (PAP1, PAP2, PAP3), wherein the fieldbus interfaces (PAP1, PAP2, PAP3) serve for communication between the fieldbus systems (DP1, PA1, FH) and a communication plane (ET2) superordinated to the fieldbus systems, only a first of the fieldbus interfaces (PAP1) is directly connected to the superordinated communication plane (ET2), and wherein the fieldbus interfaces (PAP1, PAP2, PAP3) are connected in series with one another beginning with the first of the fieldbus interfaces (PAP1).