FIELD: information technology.
SUBSTANCE: within one link protocol at one data transmission cycle every operating Slave component is assigned one time slot which independently from the data transmitted can always receive the same number of bits. For safety significant process data to be transmitted safely during one data transmission cycle from one operating Slave component to at least one another user or to be transmitted safely during one data transmission cycle from one user to operating Slave component for detecting one error-free safety significant process data transmission, first safety data is generated additionally to be transmitted therein. Safely transmitted process data is embedded together with correspondingly generated for this matter first safety data in the time slot assigned to a corresponding operating Slave component.
EFFECT: data transmission reliability improves.
21 cl, 5 dwg
