Communication server for communicating with a remote device

• US 5,583,793 A
• Filed: 03/04/1996
• Issued: 12/10/1996
• Est. Priority Date: 04/11/1994
• Status: Expired due to Fees

• Current Assignee: Schneider Electric Software Canada Inc. (Schneider Electric SE)
• Original Assignee: GSE Process Solutions, Inc. (GSE Systems, Inc.)
• Inventors: Bubnis, Edward A. Jr., Chmilewski, Michael, Burch, Michael G., Wancowicz, Keith A., Galante, Robert M., Heaps, Charles W., Gray, Dale A.
• Primary Examiner(s): Ramirez, Ellis B.
• Assistant Examiner(s): Peeso, Thomas
• Application Number:
  US08/610,002
• Time in Patent Office: 281 Days
• Field of Search: 364/514 C, 364/550, 370/60.1, 340/825.06, 340/825.08, 340/825.1, 340/825.16
• US Class Current: 709/223
• CPC Class Codes: G05B 19/4183 characterised by data acquisition, e.g. workpiece identification
• CPC Class Codes: G05B 2219/32404 Scada supervisory control and data acquisition
• CPC Class Codes: H04L 41/0681 Configuration of triggering conditions
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks
• CPC Class Codes: H04L 43/0817 by checking functioning
• CPC Class Codes: H04L 69/02 Protocol performance
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

A method and apparatus for communication with a remote device 250 by a node system 200 and a SCADA system 100. The SCADA system 100 communicates with the remote device without protocals or characteristics of the remote device 250 or the communication channel 270 connecting the remote device to the node system. A display 250 may monitor the communication channel 270 and may be remotely located with respect to the node system 200. The node system 200 may schedule the input from the remote device 250 by setting an interval and duration so that the input may be transmitted.

Claims

1. A status change data gathering apparatus comprising:

a status change detector for detecting and transmitting data representing changes in a process or an apparatus;

a processor connected to said status change detector for receiving and collecting said detected data representing said changes in said process or said apparatus;

said processor providing a schedule for a communication channel connected between said processor and said status change detector, said schedule being adopted to set a time interval for determining the time for receiving said detected data and a time duration for setting a predetermined time period when said data may be received, said processor transmitting said data to said status change detector, said data having been calculated in accordance process or apparatus is outside of predetermined limits with additional data corresponding to another status change detector.

2. A status change data gathering apparatus as in claim 1, wherein said transmitted data is in response to said collection of said detected data.

3. A status channel data gathering apparatus as in claim 1, wherein said calculation is in accordance with predetermined algorithms.

4. A status change data gathering apparatus as in claim 1, wherein said data is filtered to eliminate a noise component of said data from said data.

5. A status change data gathering apparatus as in claim 1, wherein said data is alarm data to indicate said process or apparatus is outside of predetermined limits.

6. A status change data gathering apparatus as in claim 1, wherein said status change detector detects and transmits data representing changes in a plurality of remote processes or apparatuses.

7. A status change data gathering apparatus as in claim 1, wherein said processor receives and collects the detected data representing the changes in the process or the apparatus from said status change detector transparent to the process or the apparatus providing a seamless communication.

8. A status change data gathering apparatus as in claim 1, wherein said processor determines for the schedule a sequence and rate at which the data are acquired from the process or apparatus.

9. A status change data gathering apparatus as in claim 1, wherein said processor provides supervisor control and data acquisition (SCADA) output points to be written to the process or apparatus.

10. A status change data gathering apparatus as in claim 1, wherein said processor executes input and output point algorithms to filter the data and detect alarm conditions from the process or apparatus.

11. A status change data gathering apparatus as is claim 1, wherein said processor executes block algorithms with specialized functions including at least one of an accumulator function or a proportional-integral-derivative filter function.

12. A status change data gathering apparatus as in claim 1, further comprising a storage unit and display unit storing and displaying respectively to users of input values, output values, calculation values and alarm conditions.

13. A status change data gathering apparatus as in claim 1, wherein said processor executes supervisory algorithms to connect to a remote device without the necessity of knowing a connection path in which to communicate with the remote device.

14. A status change data gathering apparatus as in claim 13, wherein the remote device stores remote data so that the status change data gathering apparatus can catch up on communications that could not be previously transmitted to the remote device.

15. A status change data gathering apparatus as in claim 1, further comprising a communication monitor providing a visual representation of the data transmitted and received between said processor and a remote device through another communication channel.

16. A status change data gathering apparatus as in claim 15, wherein said communication monitor is used to diagnose problems and validate correct operation of communication between said processor and the remote device.

17. A status change data gathering apparatus as in claim 15, wherein said communication monitor eliminates need for a protocol analyzer and allows an engineer to monitor the communication from a location remote to said processor.

18. A status change data gathering apparatus as in claim 15, wherein said processor further employs a dialup schedule permitting said communication monitor to be interrogated in accordance with a predetermined schedule.

19. A status change data gathering apparatus as in claim 18, wherein the schedule is interruptable by immediate request.

20. A status change data gathering apparatus as in claim 1, wherein said processor communicates with a remote device via a dialup device connected to the remote device, eliminating a dedicated communication channel to the remote device.

21. A status change data gathering apparatus as in claim 1, wherein said processor includes a routing function to address a remote device without knowing a specific communication connection path of the remote device.

22. A status change data gathering apparatus as in claim 21, wherein the routing function includes a predetermined topology, the predetermined topology being modifiable by the status change data gathering apparatus.

23. A status change data gathering apparatus as in claim 22, further comprising a database accessed by said processor, said database and the predetermined topology being able to be copied and modified off-line while the status change data gathering apparatus remains operating.

24. A status change data gathering apparatus as in claim 1, further comprising a database accessed by said processor, said database being able to be copied and modified off-line while the status change data gathering apparatus remains operating.

25. A status change data gathering apparatus comprising:

a status change detector for detecting and transmitting data representing changes in processes or apparatus;

a processor connected to said status change detector through a communication channel for receiving and collecting said detected data representing said changes in said process or said apparatus;

a display connected to said communication channel to monitor said communication channel, said display including a computer device to store statistical data corresponding to traffic on said communication channel.

26. A status change data gathering apparatus as in claim 25, wherein said display is adapted to be remotely located from said communication channel.

27. A computer implemented method for collecting status change data, said method comprising the steps of:

(a) detecting and transmitting data using a status change detector representing changes in a process or an apparatus;

(b) receiving and collecting the detected data from the status change detector using a processor via a communication channel, the detected data representing the changes in the process or the apparatus;

(c) monitoring the communication channel using a display; and

(d) storing statistical data corresponding to traffic on said communication channel using the display.

28. A computer implemented method as in claim 27, wherein the status change detector detects an transmits data representing changes in a plurality of remote processes or apparatuses.

29. A computer implemented method as in claim 27, wherein the processor receives and collects the detected data representing the changes in the process or the apparatus from the status change detector transparent to the process or the apparatus providing a seamless communication.

30. A computer implemented method as in claim 27, wherein the processor determines for the schedule a sequence and rate at which the data are acquired from the process or apparatus.

31. A computer implemented method as in claim 27, wherein the processor provides supervisor control and data acquisition (SCADA) output points to be written to the process or apparatus.

32. A computer implemented method as in claim 27, wherein the processor executes input and output point algorithms to filter the data and detect alarm conditions from the process or apparatus.

33. A computer implemented method as in claim 27, wherein the processor executes block algorithms with specialized functions including at least one of an accumulator function or a proportional-integral-derivative filter function.

34. A computer implemented method as in claim 27, further comprising the step of storing and displaying to users input values, output values, calculation values and alarm conditions.

35. A computer implemented method as in claim 27, wherein the processor executes supervisory algorithms to connect to a remote device without the necessity of knowing a connection path in which to communicate with the remote device.

36. A computer implemented method as in claim 35, wherein the remote device stores remote data so that the status change data gathering apparatus can catch up on communications that could not be previously transmitted to the remote device.

37. A computer implemented method as in claim 27, wherein said monitoring step further comprises the step of providing a visual representation of the data transmitted and received between the processor and a remote device.

38. A computer implemented method as in claim 37, wherein the visual representation is used to diagnose problems and validate correct operation of communication between the processor and the remote device.

39. A computer implemented method as in claim 37, wherein the visual representation eliminates need for a protocol analyzer and allows an engineer to monitor the communication from a location remote to the processor.

40. A computer implemented method as in claim 37, wherein the processor further employs a dialup schedule permitting the communication monitor to be interrogated in accordance with a predetermined schedule.

41. A computer implemented method as in claim 40, wherein the schedule is interruptable by immediate request.

42. A computer implemented method as in claim 27, wherein the processor communicates with a remote device via a dialup device connected to the remote device, eliminating a dedicated communication channel to the remote device.

43. A computer implemented method as in claim 27, wherein the processor includes a routing function to address a remote device without knowing a specific communication connection path of the remote device.

44. A computer implemented method as in claim 43, wherein the routing function includes a predetermined topology, the predetermined topology being modifiable by the status change data gathering apparatus.

45. A computer implemented method as in claim 44, wherein the processor accesses a database, the database and the predetermined topology being able to be copied and modified off-line while the computer implemented method remains processing.

46. A computer implemented method as in claim 27, wherein the processor accesses a database, the database being able to be copied and modified off-line while the status change data gathering apparatus remains operating.

47. A computer implemented method for collecting status change data utilizing a status change data gathering apparatus, said method comprising the steps of:

(a) detecting and transmitting data using a status change detector representing change in a process or an apparatus;

(b) receiving and collecting the detected data using a processor, the detected data representing the changes in the process or the apparatus;

(c) providing a schedule for a communication channel connected between the processor and the status change detector;

(d) determining a time interval for for receiving the detected data and a duration for setting a predetermined time period when the data may be received using the schedule; and

(e) calculating the data in accordance with additional data corresponding to another status change detector.