System interface and installation with the system interface

• US 20080054730A1
• Filed: 09/04/2007
• Published: 03/06/2008
• Est. Priority Date: 09/05/2006
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Graf, Josef, Beyer, Stefan, Hauselt, Peter
• Granted Patent: US 7,709,978 B2
• Time in Patent Office: Days
• US Class Current: 307/154
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H04L 12/40 Bus networks
• CPC Class Codes: H04L 12/403 with centralised control, e.g. polling

Abstract

It is normal practice in automation to network individual components of an installation via bus lines, with this network carrying out a multiplicity of communication and supply tasks during operation. In at least one embodiment, a system interface, as well as an installation which uses this interface, are disclosed with the operational reliability of the installation being improved. In at least one embodiment, a system interface is proposed for connection of a bus line to an actuator assembly in a control system with a K connection for connection of a communication channel and with a K-U connection for connection of a communication voltage supply channel, and an A-U connection for connection of an actuator voltage supply channel.

Claims

1. A system interface for connection of a bus line to an actuator assembly in a control system, comprising:

a K connection for connection of a communication channel;

a K-U connection for connection of a communication voltage supply channel; and

an A-U connection for connection of an actuator voltage supply channel.

2. The system interface as claimed in claim 1, characterized wherein the K-U connection and the A-U connection are floating.

3. An installation, comprising:

at least two actuator assemblies; and

a bus line to connect the two actuator assemblies, the bus line including a communication channel and a communication voltage supply channel, and the at least two actuator assemblies each including one system interface as claimed in claim 1.

4. The installation as claimed in claim 3, wherein the communication channel and the communication voltage supply channel in the bus line are in the form of a two-wire line.

5. The installation as claimed in claim 3, wherein the bus line includes an actuator voltage supply channel.

6. The installation as claimed in claim 5, wherein at least one of the communication voltage and the actuator voltage is 24 V.

7. The installation as claimed in claim 3, wherein the actuator voltage supply is fed at least one of into one of the actuator assemblies and into the bus line, with the interposition of an emergency-off apparatus.

8. The installation as claimed in claim 7, wherein operation of the emergency-off apparatus is transmittable via the communication channel.

9. The installation as claimed in claim 3, further comprising:

a control apparatus, to drive the at least two actuator assemblies, at least one of designed and arranged such to be at least one of insulated and isolated from the actuator voltage supply channel.

10. The installation as claimed in claim 3, further comprising:

further actuator assemblies, being networked with at least one of the at least two actuator assemblies and the control apparatus via the communication channel and the communication voltage supply channel, and being networked with one another via a second actuator voltage supply channel.

11. The installation as claimed in claim 10, wherein the at least two actuator assemblies and the further actuator assemblies form two mutually independent emergency-off circuits.

12. The installation as claimed in claim 11, wherein the two mutually independent emergency-off circuits are isolated from one another via at least one of an interruption bus line and one or more adapter bus lines, including a termination for at least one of the actuator voltage supply channel and the second actuator voltage supply channel.

13. The installation as claimed in claim 4, wherein the bus line includes an actuator voltage supply channel.

14. An installation, comprising:

at least two actuator assemblies; and

means for connecting the two actuator assemblies, the at least two actuator assemblies each including one system interface as claimed in claim 1.

15. The installation as claimed in claim 14, wherein the means for connecting includes a communication channel and a communication voltage supply channel.

16. The installation as claimed in claim 15, wherein the communication channel and the communication voltage supply channel in the bus line are in the form of a two-wire line.

17. The installation as claimed in claim 15, wherein the means for connecting includes an actuator voltage supply channel.

18. The installation as claimed in claim 17, wherein at least one of the communication voltage and the actuator voltage is 24 V.

19. The installation as claimed in claim 17, wherein the actuator voltage supply is fed at least one of into one of the actuator assemblies and into the means for connecting, with the interposition of an emergency-off apparatus.