Abstract: An apparatus for detecting and processing a multiplicity of measured values in an HVDCT system has measuring units for detecting measured variables of the HVDCT system, while obtaining measured values, and preprocessing units which are connected to one another in series, are each connected to at least one measuring unit and are connected to a control, regulation and monitoring system by means of a last preprocessing unit which is connected downstream of the rest of the preprocessing units, each preprocessing unit being set up to receive and preprocess the measured values, while obtaining optical measured values, and transmitting both the optical measured values generated by it and the optical measured values received from the upstream preprocessing units to a downstream preprocessing unit or to the control, regulation and monitoring system, with the result that the last preprocessing unit provides all of the measured values for the control, regulation and monitoring system.

Abstract: In a method for transmitting data in an HVDCT system to a control system for HVDCT systems, measured values are transmitted from measuring units of the HVDCT system to preprocessing units connected to one another in series. The preprocessing units use the received measured values to generate measured value data. The measured value data are transmitted as part of a data record composed of data words, and the data words are subdivided, during transmission, into a temporal sequence of individual bit groups. A first bit group contains identification data for the preprocessing unit and information on the number of further bit groups that are to be transmitted by the preprocessing unit. A downstream preprocessing unit uses the information on the number of bit groups to be transmitted by a preprocessing unit connected upstream of it to determine a time for transmitting the data word of the downstream preprocessing unit.