Motion control systems using communication map to facilitating communication with motion control hardware

• US 6,209,037 B1
• Filed: 12/03/1998
• Issued: 03/27/2001
• Est. Priority Date: 05/30/1995
• Status: Expired due to Term

• Current Assignee: Automation Middleware Solutions, Inc. (Quarterhill Inc. (f/k/a Wi-LAN Inc.))
• Original Assignee: ROY-G-BIV Corporation
• Inventors: Brown, David W., Clark, Jay S.
• Primary Examiner(s): Lim, Krisna
• Application Number:
  US09/205,627
• Time in Patent Office: 845 Days
• Field of Search: 709/230, 700/1, 700/19, 700/56
• US Class Current: 709/230
• CPC Class Codes: G05B 19/408 characterised by data handling or data format, e.g. reading, buffering or conversion of data
• CPC Class Codes: G05B 2219/31185 Mapi message application interface for windows
• CPC Class Codes: G05B 2219/34208 Motion controller
• CPC Class Codes: G05B 2219/34256 Api application programming interface

Abstract

A system and method for facilitating communication between an application program and underlying motion control hardware in a hardware independent manner. A communication map maps a generic grid of mapping information cells to the actual information cells implemented by the particular hardware. Each actual information cell may be located in different areas and may transfer different values on each hardware platform. The communication map allows common functions to be used across a plurality of supported hardware device implementations.

Claims

1. A method of allowing an application program to communicate with any one of a group of supported hardware devices, where each of the supported hardware devices contains a unique communication protocol, the method comprising the steps of:

defining a set of standard communication services to be supported, where the standard communication services each correspond to a communication function that is implemented by at least some of the hardware devices in the group of supported hardware devices;

defining an information target for each of the hardware devices in the group of hardware devices, where each information target comprises a plurality of actual information cells that represent the unique communication protocol of the hardware device associated therewith;

defining a communication map for each information target containing mapping information cells that relate each of the standard communication services in the set of standard communication services to the actual information cells of the information targets;

invoking at least one of the standard communication services in the application program.