A distributed networking system and protocol is provided to a networking system with a modular design. The distributed networking system may include a networking system, modules, control module, user interface module, input/output module, network module, data transmission network, hybrid modules and composite modules. A method to interface with accessories of a system with a modular design using the distributed networking system and protocol is also provided.

Safety networking protocol and method

Apparatus and methods regarding a processing system operable to implement an arbiter. The arbiter receives commands from non-prioritized and prioritized actors, and repeatedly issues an earliest received, non-issued command received from the non-prioritized actor. Execution of an immediately preceding issued command is completed or terminated by a sending actor of the immediately preceding issued command before a subsequent earliest received, non-issued command is issued. The arbiter also issues a command received from the prioritized actor upon receipt of the command received from the prioritized actor. Issuance of the command received from the prioritized actor interrupts issuance and execution of a command received from the non-prioritized actor. The commands from the non-prioritized and prioritized actors are issued to equipment controllers operable to control equipment of a well construction system.

Well construction communication and control

The invention provides a test device and a test method for an accurate load control system. The device comprises a coordination control main station simulation module, a substation host simulation module and a load control terminal simulation module; the coordination control main station simulation module and the substation simulation module are used for being in communication connection with a main station host of a tested load control system and testing the main station host, and the load control terminal simulation module is used for being in communication connection with a substation hostof the tested load control system and testing the substation host. According to the technical solution, the coordination control main station simulation module, the substation host simulation module and the load control terminal simulation module are in communication connection with the main station host and the substation host of the tested load control system to build a test environment for testing the tested load control system, so the operation is relatively convenient and the test cost is relatively low.

Test device and test method for accurate load control system

The present disclosure relates to a slave device control method, for transmitting a control message along with group start data and group end data to a slave device by a master device so as to set a start point and an end point of the slave device in a sub group, and for allowing the master device to check a network topology using a topology collection message (410, 420) so as to effectively generate a sub group.

Slave device control method

A method for operating an automation device including at least one real automation unit for controlling a technical process, an operator station for operating and observing the technical process to be controlled, an engineering system and virtual automation units which each simulate functions of a real automation unit and is stored on a server, wherein suitable measures are used to particularly simplify the start-up of the automation device, where a suitable distribution of the virtual controllers or automation units on servers to a large extent guarantees real-time behavior of the automation device.

Method for operating an automation device and automation device

An oil field process control system including a field versatile control gateway component that interfaces with a plurality of field devices using a broad range of hardwired and wireless protocols, offering in-the-field monitoring and control of each of the field devices and communicates with a remote central control room, exchanging data between the control room and the field using a multiplexed protocol that offers high data speeds and bandwidth, enabling a significant reduction of the amount of wiring, and conduits and other infrastructure expenses that would otherwise be incurred for such a highly reliable communications system.

Oil field process control system

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Oil field process control system