Abstract: An apparatus for updating the software in a subsea electronics module, the apparatus including a first data transmitting and receiving means, a second data transmitting and receiving means, and a transmission line between the first and the second data transmitting and receiving means, wherein packets of data from the first data transmitting and receiving means are transmitted to the second data transmitting and receiving means and aggregated to form a local master, from which software in SEMs may be updated locally. The packets of data may be transmitted using unutilised capacity of the transmission line not required during normal operations.

Abstract: An underwater installation comprising at least one underwater control equipment located in a body of water, a plurality of seismic sensors located on a bed of the body of water, wherein the plurality of seismic sensors are configured to monitor conditions to which the at least one underwater control equipment is subjected to, and a processor configured to receive and process data from the plurality of seismic sensors.

Abstract: A method of monitoring the operation of a subsea hydrocarbon production control system is provided. The method comprises monitoring at least one subsea device of the system, and, if the at least one subsea device fails to a fail-safe condition, sending a wireless indication that the at least one subsea device has failed to a fail-safe condition.

Abstract: A method is provided for saving the state of a real-time controller. The method includes receiving a command to save a state of a controller coupled to an industrial system, wherein the controller comprises a processor and a non-volatile memory, capturing the state of the controller during control and monitoring of the industrial system, and writing the captured state to the non-volatile memory of the controller.