Programmable controller with RF wireless interface

• US 6,993,298 B2
• Filed: 09/07/2001
• Issued: 01/31/2006
• Est. Priority Date: 09/07/2001
• Status: Expired due to Term

• Current Assignee: Siemens AG
• Original Assignee: Siemens Energy & Automation Incorporated (Siemens AG)
• Inventors: Licht, Harold Jay
• Primary Examiner(s): LE, DANH C
• Application Number:
  US09/948,421
• Publication Number:
  US 20030050093A1
• Time in Patent Office: 1,607 Days
• Field of Search: 455/90.3, 455/90.2, 455/575.1, 455/575.5, 455/129, 455/67.11, 455/79, 156/226, 340/572.1, 340/572.5, 340/572.8, 257/275, 257/273, 439/59
• US Class Current: 455/90.3
• CPC Class Codes: G05B 19/054 Input/output
• CPC Class Codes: G05B 2219/15038 Internet, tcp-ip, web server see under S05B219-40
• CPC Class Codes: G05B 2219/15117 Radio link, wireless
• CPC Class Codes: G05B 2219/31156 Network structure, internet
• CPC Class Codes: G05B 2219/31186 TCP-IP internet protocol
• CPC Class Codes: G05B 2219/31205 Remote transmission of measured values from site, local to host
• CPC Class Codes: H05K 1/0266 Marks, test patterns or identification means
• CPC Class Codes: H05K 2201/10098 Components for radio transmission, e.g. radio frequency identification [RFID] tag, printed or non-printed antennas
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

A programmable logic controller has a wireless communication interface. A radio frequency identification chip set is mounted to, and is in communication with, the active elements of an integrated circuit on one or more circuit boards in the programmable controller. The chip set provides for radio frequency communication between the controller and other components either inside the controller or external to the controller. Identification information recorded on the chip may be interfaced over a network, particularly, an on-line network such as the Internet.

Claims

1. A programmable logic controller comprising:

a housing;

at least one circuit board within the programmable logic controller housing, the at least one circuit board comprising circuitry for performing controller functions; and

a radio frequency identification chip set mounted to the at least one of circuit board and coupled to circuitry on the at least one circuit board, the chip set for providing radio frequency communication, wherein the chip set is adapted to operate in a frequency range outside of frequencies at which the programmable logic controller is adapted to operate to prevent radio frequency communication from interfering with the operation of the programmable logic controller.

2. The programmable logic controller according to claim 1, wherein an antenna of the radio frequency chip set is etched into the at least one circuit board.

3. The programmable logic controller according to claim 1, further comprising a chip set mount for mounting the chip set to the at least one circuit board.

4. The programmable logic controller according to claim 3, wherein the chip set mount comprises a standard surface mount.

5. The programmable logic controller according to claim 3, wherein the chip set mount comprises a through-hole mounting device.

6. The programmable logic controller according to claim 3, wherein the chip set mount comprises a chip-on-board mounting device.

7. The programmable logic controller according to claim 1, wherein the chip set comprises part of a schematic of an integrated circuit.

8. The programmable logic controller according to claim 1, wherein two or more circuit boards within the programmable logic controller comprise the chip set and the two or more circuit boards are adapted for radio frequency communication with one another.

9. The programmable logic controller according to claim 1, wherein the programmable logic controller comprises a processor that receives RF signals carrying programming instructions for execution by the processor.

10. The programmable logic controller according to claim 1, wherein the chip set is shielded to prevent radio frequency communication with the chip set from interfering with operation of the programmable logic controller.

11. The programmable logic controller according to claim 1, wherein the chip set carries signals representing wireless testing instructions.

12. The programmable controller according to claim 11, wherein the chip set carries testing signals regarding a manufacturing process.

13. The programmable logic controller according to claim 1, further comprising a network interface for interfacing the programmable logic controller to a network.

14. The programmable logic controller according to claim 13, wherein said network interface communicates information received from said identification chip over said network.

15. The programmable logic controller according to claim 14, wherein said network interface interfaces to the Internet.

16. A programmable logic controller having a wireless communication interface comprising:

a housing;

at least one circuit board within said programmable logic controller including circuitry for performing controller functions; and

interface means for providing wireless communication with said programmable logic controller via radio frequency transmissions, said interface means mounted to and contacting the at least one of the circuit board, wherein the interface means is adapted to operate in a frequency range outside of frequencies at which the programmable logic controller is adapted to operate to prevent wireless communication from interfering with the operation of the programmable logic controller.

17. A method for providing wireless communication with a programmable logic controller, the method comprising:

providing a radio frequency identification chip set that transmits information via radio frequency signals, wherein said chip set is adapted to operate in a frequency range outside of frequencies at which the programmable logic controller is adapted to operate to prevent radio frequency communication from interfering with the operation of the programmable logic controller,

mounting said chip set in contacting arrangement to active elements of an integrated circuit on at least one circuit board in the programmable logic controller; and

providing an antenna for communicating information to and from the chip set.

18. The method of claim 17, wherein the information comprises programming instructions for the programmable logic controller.

19. The method of claim 17, wherein the information comprises error notification signals indicating when there is a problem in the programmable logic controller.