Shaping plant and safety program

Patent metadata

Field	Value
Publication number	US-10606239-B2
Application number	US-201514963747-A
Country	US
Kind code	B2
Filing date	Dec 9, 2015
Priority date	Dec 12, 2014
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A molding facility or peripheral apparatus for a molding facility including at least one non-safe control apparatus having at least one signal input and at least one signal output for the non-safe control of non-safety-relevant actuators of the molding facility or peripheral apparatus, and at least one safe control apparatus which has at least one safe signal input and at least one safe signal output and in which there is stored a safety program which can be executed for the safe control of safety-relevant actuators of the molding facility or peripheral apparatus, wherein the safety program is a version of a wiring diagram, that can be executed by the safe control apparatus and is compiled by a compiler.

First claim

The invention claimed is:

1. A system comprising:
non-safety-relevant actuators,
at least one non-safe control apparatus having at least one signal input and at least one signal output for non-safe control of the non-safety-relevant actuators of the system,
safety-relevant actuators,
at least one safe control apparatus which has at least one safe signal input and at least one safe signal output and in which there is stored a safety program which can be executed for safe control of the safety-relevant actuators of the system,
a safety engineering tool in which the safety program for the at least one safe control apparatus can be programmed, wherein the safety program created by the safety engineering tool is stored either from the safety engineering tool with a direct connection to the at least one safe control apparatus or by a storage medium to be connected to the at least one safe control apparatus,
an electronic computer-aided design tool in which a wiring diagram is created during a design phase of the system, wherein the wiring diagram represents an electrical circuit and comprises individual symbols with associated safety parameters, connections of the individual symbols to each other and connections to the at least one safe signal input and the at least one safe signal output, wherein a same library of individual symbols and associated safety parameters to be used by the safety engineering tool of the at least one safe control apparatus is to be used in the wiring diagram, wherein the individual symbols of the wiring diagram are illustrated in a switched-off power-less situation such that the wiring diagram represents the switched-off power-less situation of an entirety of the system, and wherein the wiring diagram includes individual symbols of the safety-relevant actuators and the non-safety-relevant actuators therein, and
an exporting device configured to produce an export data file from the wiring diagram and by which the export data file is to be imported into the safety engineering tool,
wherein the safety engineering tool comprises a compiler by which a compiling operation of the export data file is to be initiated and a compiled version of the wiring diagram is to be generated, and
wherein the safety program is a version of the wiring diagram that during operation of the system is executed by the at least one safe control apparatus, thereby safe controlling the safety-relevant actuators as defined in the compiled version of the wiring diagram.

2. The system as set forth in claim 1 , further comprising at least one signal-transmitting connecting device to which the at least one non-safe control apparatus and the at least one safe control apparatus are connected.

3. The system as set forth in claim 2 , wherein the at least one signal-transmitting connecting device is a bus.

4. The system as set forth in claim 1 , further comprising a computing unit on which there is configured a user interface with a display unit and an input device for display of signals of the at least one non-safe control apparatus and for input of parameters for the at least one non-safe control apparatus.

5. The system as set forth in claim 4 , wherein the safety program can be executed by safety parameters which can be predetermined by a user by the input device of the user interface of the computing unit.

6. The system as set forth in claim 5 , wherein the safety parameters for the safety program of the at least one safe control apparatus can be input by the input device of the user interface of the computing unit.

7. The system as set forth in claim 5 , wherein:
a number and/or a positioning of the safety-relevant actuators or
a predetermined safety level of at least one of the safety-relevant actuators
can be selected by the safety parameters for the safety program of the at least one safe control apparatus.

8. The system as set forth claim 1 , wherein the safety program can be verifiably installed on the at least one safe control apparatus by an input device of a user interface of the at least one non-safe control apparatus.

9. The system as set forth in claim 1 , wherein a diagnosis tool for the at least one safe control apparatus is implemented in a user interface of the at least one non-safe control apparatus or in the at least one safe control apparatus.

10. The system as set forth in claim 9 , wherein a display unit of the user interface is configured to represent diagnosis signals of the diagnosis tool in the wiring diagram.

11. The system as set forth in claim 10 , wherein the display unit of the user interface is configured for individual representation of a block or a group of blocks of the wiring diagram.

12. The system as set forth in claim 9 , wherein the diagnosis tool is configured to test a signal connection of the wiring diagram that includes a plurality of blocks, and to mark already tested blocks.

13. The system as set forth in claim 9 , wherein the diagnosis tool is configured to establish whether an input signal at the at least one safe signal input of the at least one safe control apparatus triggers a predetermined output signal by the at least one safe signal output of the at least one safe control apparatus.

14. The system as set forth in claim 13 , wherein the diagnosis tool is configured to monitor a complete signal path between the at least one safe signal output and the at least one safe signal input.

15. The system as set forth in claim 1 , wherein the at least one safe control apparatus is a component physically separated from the at least one non-safe control apparatus or is implemented in the at least one non-safe control apparatus.

16. The system as set forth in claim 1 , wherein the at least one safe control apparatus is configured to communicate by a safe bus module with the at least one safe signal input and/or the at least one safe signal output.

17. The system as set forth in claim 1 , wherein an input of safety parameters for the at least one safe control apparatus, that is effected by an input device of a user interface of the at least one non-safe control apparatus, can be deposited in a protocol data file.

18. The system as set forth in claim 1 , wherein an input of safety parameters for the at least one safe control apparatus can be limited to values already provided in the wiring diagram, by an input device of a user interface of the at least one non-safe control apparatus.

19. The system as set forth in claim 1 , wherein an identification additionally deposited in the wiring diagram with respect to the system is deposited, and is taken over into the safety program which can be executed by the at least one safe control apparatus so that confusion with respect to the safety program can be prevented.

20. A method of operating a system, comprising:
non-safety-relevant actuators,
at least one non-safe control apparatus which by input and output signals non-safely controls the non-safety-relevant actuators of the system,
safety-relevant actuators,
at least one safe control apparatus which by input and output signals by a safety program safely controls the safety-relevant actuators of the system,
the method comprising:
programming a safety program for the at least one safe control apparatus by a safety engineering tool, wherein the safety program created by the safety engineering tool is stored either from the safety engineering tool with a direct connection to the at least one safe control apparatus or by a storage medium to be connected to the safe control apparatus,
generating

Assignees

• Engel Austria Gmbh

Inventors

• Hoeglinger Wolfgang
• Huber Christian

Classifications

• G05B19/406 Primary

  characterised by monitoring or safety (G05B19/19 takes precedence) · CPC title

• G05B2219/35051

  Data exchange between cad systems, cad and cam · CPC title

• G05B19/048

  Monitoring; Safety · CPC title

• G05B2219/45244

  Injection molding · CPC title

• G05B2219/34465

  Safety, control of correct operation, abnormal states · CPC title