Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Industrial controller with coordinated timing










Image Number 3 for United States Patent #5519726.

A method for providing a standard coordinated time throughout spatially separated functional modules of an industrial controller employs a module operating as a time-master which transmits a coordinated time value to various dependent modules through communication modules. The particular time-master is determined by an arbitration process among potential masters which examines a time quality value, indicating the precision of the time-master's clock, and incorporated in the transmitted synchronization signal. Upon the loss of a master or the introduction of a new master, mastership is reallocated so that the master time value is provided from that module having the best time quality. Offset caused by "ripple through" of the time value through communication modules is minimized by summing to that time value as it traverses a communication module with a time quantity measuring the processing time of the communication module.








 
 
  Recently Added Patents
Combination immunotherapy for the treatment of cancer
Lightning-protective explosion-preventive fastener
Mobile application for calendar sharing and scheduling
Perspective runway system
Managing imaging of computing devices
Use of natural query events to improve online advertising campaigns
Myoglobin blooming agents, films, packages and methods for packaging
  Randomly Featured Patents
Switch orienting device
Method of matching golfer with golf ball, golf club, or style of play
Housing for light emitting diode
Metal complexes
Endoscopic device with three-way valve
Thick matter pump
Centrifugally assisted centrifuge bowl mount
Methods and compositions for controlling iron stores to treat and cure disease states
Retention clip
Auxiliary development agents photographic materials incorporating them and the use thereof