Security control system, method for the operation thereof
First Claim
Patent Images
1. A safety-oriented control system (10) comprising:
- a plurality of decentralized stations (14, 16, 18, 20) provided with inputs and outputs (138, 140, 142, 144) and at least one centralized station (12) exchanging information with each other via a bus line (38, 40, 42, 44), wherein at least one of the decentralized stations (14, 16, 18, 20) has independent devices (62, 64) for fault-tolerating and/or fault-controlling self-monitoring to ensure normal operation for linkage and evaluation of signals located at an input of at least one decentralized station, and wherein at least one of the decentralized stations has devices for processing of said signals and for generation of independent control commands, wherein the independent device (62, 64) is coupled via a coupling element to the bus line (38, 40, 42, 44), wherein the centralized station (12) is coupled to a programmer that generates a shutdown table independently from the user program programmed by the user and adding said table to the transmission protocol when transmitting the user program to the centralized station (12);
wherein the shutdown table is transmitted from the centralized station (12) to the decentralized stations (14, 16, 18, 20);
wherein the independent devices (62, 64) comprise a storage cell for the shutdown table that is transmitted from the central station via the bus line (38, 40, 42, 44);
wherein the shutdown table comprises shutdown information in the form of logical linkages between inputs of the same and/or inputs of other stations allocated to each output of the station;
wherein the decentralized stations (14, 16, 18, 20) are provided with outputs reading and evaluating all messages transmitted via the bus line (38, 40, 42, 44); and
wherein the independent devices (62, 46) have a comparator, in which the messages transmitted via the bus line (38, 40, 42, 44) and the linkages stored in the shutdown table can be compared, where when a linkage assigned to an output is fulfilled a direct shutdown of the output assigned can be performed.
1 Assignment
0 Petitions
Accused Products
Abstract
A safety-oriented control system with a plurality of decentralized stations is disclosed. The safety-oriented control system is provided with inputs and outputs and at least one centralized station exchanging information with each other via a bus line, wherein at least one of the decentralized stations has independent devices for fault-tolerating and/or fault-controlling self-monitoring to ensure normal operation for linkage and evaluation of signals located at the inputs and outputs of this station or further stations, and devices for processing of the signals and for generation of independent control commands.
-
Citations
27 Claims
-
1. A safety-oriented control system (10) comprising:
-
a plurality of decentralized stations (14, 16, 18, 20) provided with inputs and outputs (138, 140, 142, 144) and at least one centralized station (12) exchanging information with each other via a bus line (38, 40, 42, 44), wherein at least one of the decentralized stations (14, 16, 18, 20) has independent devices (62, 64) for fault-tolerating and/or fault-controlling self-monitoring to ensure normal operation for linkage and evaluation of signals located at an input of at least one decentralized station, and wherein at least one of the decentralized stations has devices for processing of said signals and for generation of independent control commands, wherein the independent device (62, 64) is coupled via a coupling element to the bus line (38, 40, 42, 44), wherein the centralized station (12) is coupled to a programmer that generates a shutdown table independently from the user program programmed by the user and adding said table to the transmission protocol when transmitting the user program to the centralized station (12);
wherein the shutdown table is transmitted from the centralized station (12) to the decentralized stations (14, 16, 18, 20);
wherein the independent devices (62, 64) comprise a storage cell for the shutdown table that is transmitted from the central station via the bus line (38, 40, 42, 44);
wherein the shutdown table comprises shutdown information in the form of logical linkages between inputs of the same and/or inputs of other stations allocated to each output of the station;
wherein the decentralized stations (14, 16, 18, 20) are provided with outputs reading and evaluating all messages transmitted via the bus line (38, 40, 42, 44); and
wherein the independent devices (62, 46) have a comparator, in which the messages transmitted via the bus line (38, 40, 42, 44) and the linkages stored in the shutdown table can be compared, where when a linkage assigned to an output is fulfilled a direct shutdown of the output assigned can be performed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A method for operation of a safety-oriented control system (10) with a plurality of decentralized stations (14, 16, 18, 20) provided with inputs and outputs (138, 140, 142, 144) and at least one centralized station (12) exchanging information with each other via a bus line (38, 40, 42, 44), wherein in at least one of the decentralized stations (14, 16, 18, 20) a linkage and evaluation of signals located at the inputs (138) of the same stations takes place and a message is transmitted to a bus line (38, 40, 42, 44) in dependence of signals located at the inputs (138), said signals being received and evaluated by the centralized station (12) or at least one of the decentralized stations (14, 16, 18, 20);
- comprising,
generating a shutdown table independently in a programmer on the basis of a user program programmed by a user, where said shutdown table is attached to the transmission protocol when transmitting the user program to the central station (12);
transmitting the shutdown table to each decentralized station (14, 16, 18, 20) via a bus line (38, 40) originating from the centralized station (12) comprising outputs prior to starting the control system (10);
wherein the shutdown table includes shutdown information assigned to each output of the decentralized station (14, 16, 18, 20), said information being provided in the form of logical linkages between inputs of the same station and/or inputs of further stations;
wherein the decentralized station (14, 16, 18, 20) comprising outputs read all messages transmitted via the bus line (38, 40) and check whether the messages transmitted via the bus line (38, 40, 42, 44) correspond to a logical linkage stored in the shutdown table; and
wherein when fulfilling a linkage being assigned to an output, a direct shutdown of the output assigned takes place. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
- comprising,
Specification