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US 2009/0063739 A1Published application
Systems, and/or Devices to Control the Synchronization of Diagnostic Cycles and Data Conversion for Redundant I/O Applications
AssigneeSiemens Energy & Automation, Inc.
InventorRobert Alan Weddle
Life of this patent
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Abstract
Certain exemplary embodiments can provide a first analog input module adapted to, via a sent synchronization signal, automatically terminate a diagnostic cycle of a second analog input module. The synchronization signal can be adapted to cause an initiation of a data conversion cycle at the second analog input module.
Claims16
A system comprising:
- a first analog input module adapted to:
- request mastership with respect to a second analog input module;
- output a synchronization pulse to said second analog input module;
- initiate a diagnostic cycle;
- and
- initiate a data conversion cycle;
- and
- said second analog input module, said second analog input module adapted to assume a slave role with respect to said first analog input module.
5 more elements
The system of cl aim 1, wherein said first analog input module is further adapted to:
- send to said second analog input module a request to establish communication with said second analog input module.
A system comprising:
- a first analog input module adapted to, via a sent synchronization signal, automatically terminate a diagnostic cycle of a second analog input module, said synchronization signal adapted to cause an initiation of a data conversion cycle at said second analog input module, said synchronization signal sent subsequent to an acknowledged request to establish communication with said second analog input module.
A method comprising:
- via a sent synchronization signal sent by a first analog input module of a programmable logic controller, automatically causing a diagnostic cycle of a second analog input module to terminate, said synchronization signal adapted to cause an initiation of a data conversion cycle at said second analog input module, said synchronization signal sent subsequent to an acknowledged request to establish communication with said second analog input module.
A method comprising:
- at a first analog input module:
- requesting mastership with respect to a second analog input module, said second analog input module adapted to assume a slave role with respect to said first analog input module;
- outputting a synchronization pulse to said second analog input module;
- initiating a diagnostic cycle;
- and
- initiating a data conversion cycle.
3 more elements
Dependencies are inferred from the claim text.