Patent ID: 8335573
Filing Date: 2012-12-18
Classification: G05B

Abstract:
1. A method for controlling safety functions in a system controller which executes safety functions forming a safety task as well as non-safety-related functions forming a non-safety related control task, said tasks being performed by the controller, results of both tasks being process signals for actuators, and both tasks formed by means of an operating program which is not safety certified in which safety modules each having a sound functionality are provided and a safety protocol which transmits data in a form of safety messages is provided, wherein input parameters and output parameters from each safety module are encapsulated by the safety protocol, and the individual safety modules are logically combined with one another in terms of data and flow by means of a data transmission link in line with the safety task which is to be controlled, a data interchange taking place between the safety modules on the basis of the safety protocol.