Method for operating an industrial control system and corresponding control system

A method for operation of an industrial control system, comprising at least one stationary control device and at least one control-technology-based manual operator-control instrument, which can be carried by an operator-control person, which can be connected at least to one control device having sensors and actuators of a machine or installation to be controlled, and which the at least one control device is provided with at least one data-technology-based interface for establishment and termination as needed of a control-technology-based interaction with the at least one portable control-technology-based manual operator-control instrument, wherein such a control-technology-based interaction is established via at least one second data-technology-based interface of the at least one manual operator-control instrument to be connected, and

• wherein the at least one manual operator-control instrument is provided with at least one safety switching element that can be manually actuated by the operator-control person for initiation and/or termination of potentially safety-critical control commands and/or control sequences,
• and having at least one data-technology-based identifier, assigned to the respective manual operator-control instrument, for identification of the respective manual operator-control instrument relative to the at least one control device,
• wherein
• the data-technology-based identifier of the manual operator-control instrument represents at least one respective hardware version and one respective software status of the respective manual operator-control instrument,
• wherein, prior to the establishment of the control-technology-based interaction, the data-technology-based identifier, starting from the manual operator-control instrument provided for connection, is transmitted to the at least one control device or is called from the at least one control device,
• wherein the data-technology-based identifier is evaluated by the at least one control device,
• wherein a mode of response of the respective control device or of the entire control system in relation to (i) reliability or non-reliability of the establishment of the control-technology-based interaction, in relation to (ii) functional response during the active control-technology-based interaction and in relation to (iii) functional response in connection with a termination of the control-technology-based interaction between the respective control device and the manual operator-control instrument is determined in dependence on these evaluation results,
• wherein the technical construction of the at least one safety switching element in the respective manual operator-control instrument is represented by the data-technology-based identifier, and
• wherein the at least one safety switching element on the manual operator-control instrument is formed by a shutdown element for avoidance or termination of hazardous or accident situations, wherein such a shutdown element is formed in the manner of a standardized red-yellow emergency-off switch, in the manner of an off switch that can be illuminated or that glows to show functional availability, or in the manner of a general off switch, and wherein the respective type of the technical construction of the shutdown element implemented on the respective manual operator-control instrument is represented by the data-technology-based identifier.