Richard S Merrill

US Patent:

49425528, Jul 17, 1990

Filed:

Nov 20, 1986

Appl. No.:

6/932987

Inventors:

Richard A. Merrill - Ann Arbor MI
Bruce L. Crockett - Pinckney MI
Robert C. Strader - Saline MI

Assignee:

Allen-Bradley Company, Inc. - Milwaukee WI

International Classification:

G06F 1300
G06F 1314
G06F 940

US Classification:

364900

Abstract:

A communications system for industrial controllers includes interface controllers which implement a remote command capability. The remote command feature allows conventional communications commands to be saved at a responding interface controller in a remote command table and performed at a later time. A "SAVE" type remote command includes an ID field and an embedded command. The embedded command is stored in the remote command table at a location corresponding to the ID field. The ID field is used to access the embedded command in subsequent remote commands. A "PERFORM" type remote command contains a string of ID's, which indicates which saved commands are to be performed and the order in which to perform them. When a PERFORM command is received, the conventional command stored in the remote command table is recalled and transmitted onto a communications network. The PERFORM command can be addressed to a single interface controller, or it can be broadcast to all interface controllers in the communications system.

US Patent:

51135027, May 12, 1992

Filed:

May 31, 1990

Appl. No.:

7/531277

Inventors:

Richard A. Merrill - Ann Arbor MI
Bruce L. Crockett - Pinckney MI
Robert C. Strader - Saline MI

Assignee:

Allen-Bradley Company, Inc. - Milwaukee WI

International Classification:

G06F 300
G06F 1516

US Classification:

395375

Abstract:

A communications system for industrial controllers includes interface controllers which implement a remote command capability. The remote command feature allows conventional communications commands to be saved at a responding interface controller in a remote command table and performed at a later time. A "SAVE" type remote command includes an ID field and an embedded command. The embedded command is stored in the remote command table at a location corresponding to the ID field. The ID field is used to access the embedded command in subsequent remote commands. A "PERFORM" type remote command contains a string of ID's, which indicates which saved commands are to be performed and the order in which to perform them. When a PERFORM command is received, the conventional command stored in the remote command table is recalled and transmitted onto a communications network. The PERFORM command can be addressed to a single interface controller, or it can be broadcast to all interface controllers in the communications system.