Louis L Smet

US Patent:

8184417, May 22, 2012

Filed:

Aug 13, 2009

Appl. No.:

12/540493

Inventors:

Arthur P. Pietrzyk - Thompson OH, US
Peter M. Delic - Willoughby OH, US
William E. Waltz - Mentor OH, US
Russell W. Brandes - Brunswick OH, US
Dennis G. Schneider - New Berlin WI, US
Louis L. Smet - Wauwatosa WI, US

Assignee:

Rockwell Automation Technologies, Inc. - Mayfield Heights OH

International Classification:

H02H 3/00
G05B 11/01

US Classification:

361 88, 361 78, 700 12, 700 21, 700 22

Abstract:

An input termination board for use with an industrial controller in a safety system is disclosed herein. The industrial controller may be populated with standard analog input modules according to the requirements of the application. The termination board may selectively receive a single analog input signal from a remote device and transmit the signal to corresponding channels on two analog input modules or, alternately, receive two analog input signals and transmit each signal to one of the two corresponding channels. In addition, a program executing on the controller of the safety module monitors and tests each of the analog input channels on the input modules, verifying proper operation of the modules. If the program detects a fault in either input module, the safety system may alternately shut down according to a fail-safe procedure or continue operating under a fault-tolerant mode of operation.

US Patent:

8441766, May 14, 2013

Filed:

Aug 12, 2009

Appl. No.:

12/539665

Inventors:

Arthur P. Pietrzyk - Thompson OH, US
Peter M. Delic - Willoughby OH, US
William E. Waltz - Mentor OH, US
Russell W. Brandes - Brunswick OH, US
Dennis G. Schneider - New Berlin WI, US
Louis L. Smet - Wauwatosa WI, US

Assignee:

Rockwell Automation Technologies, Inc. - Mayfield Heights OH

International Classification:

H05K 1/18
H05K 7/10

US Classification:

361 78, 361729, 361748, 361760

Abstract:

An output termination board for a safety system is disclosed herein. The termination board provides simplified wiring between the output modules and the remote devices operated by the controller in the system. Redundant output signals are generated within each pair of output modules and combined such that one control signal is sent to each remote device. In addition, a program executing on the controller of the safety system performs a test to determine if each output module is operating normally. If the program detects a fault in either output module, the safety system may alternately shut down according to a fail-safe procedure or continue operating under a fault-tolerant mode of operation.

US Patent:

20100125372, May 20, 2010

Filed:

Jun 22, 2009

Appl. No.:

12/488690

Inventors:

Arthur P. Pietrzyk - Thompson OH, US
Peter M. Delic - Willoughby OH, US
William E. Waltz - Mentor OH, US
Russell W. Brandes - Brunswick OH, US
Dennis G. Schneider - New Berlin WI, US
Louis L. Smet - Wauwatosa WI, US

International Classification:

G05B 9/02
G06F 1/28

US Classification:

700293, 700286, 700 21

Abstract:

An input termination board for use with an industrial controller in a safety system is disclosed herein. The industrial controller may be populated with standard input modules according to the application. The termination board, in conjunction with the controller allows the standard input modules to be used as safety inputs. The termination board provides simplified wiring between the input modules and the remote devices by splitting each of the signals generated by the remote device into separate inputs for two different input modules. In addition, a program executing on the controller of the safety system monitors and tests each of the inputs in both input modules to verify proper operation of the inputs. If the program detects a fault in either input module, the safety system may alternately shut down according to a fail-safe procedure or continue operating under a fault-tolerant mode of operation.