Systems, and/or devices to control the synchronization of diagnostic cycles and data conversion for redundant I/O applications
AssigneeSiemens Industry, Inc.
InventorRobert Alan Weddle
Life of this patent
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Abstract
Methods and systems for controlling the synchronization of diagnostic cycles and data conversion for redundant I/O applications are provided. An exemplary system comprises 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 of said second analog input module, and initiate a data conversion cycle, and wherein said second analog input module, said second analog input module are adapted to assume a slave role with respect to said first analog input module. Numerous other aspects are provided.
Claims15
A system comprising:
- a first analog input module adapted to:
- request and then assume mastership with respect to a second analog input module;
- output a synchronization pulse to said second analog input module to synchronize a diagnostic cycle and a data conversion cycle;
- initiate a performance of a diagnostic cycle of said second analog input module;
- and
- initiate a data conversion cycle;
- and
- said second analog input module adapted to assume a slave role with respect to said first analog input module;
- wherein the diagnostic cycle is disabled during the data conversion cycle.
A system comprising:
- a first analog input module adapted to, via a sent synchronization signal to synchronize a diagnostic cycle and a data conversion cycle, automatically terminate a diagnostic cycle being performed by a second analog input module, said synchronization signal further adapted to cause an initiation of a data conversion cycle at said second analog input module after the termination of the diagnostic cycle, 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 to synchronize a diagnostic cycle and a data conversion cycle, the synchronization signal sent by a first analog input module of a programmable logic controller, automatically causing a diagnostic cycle being performed by a second analog input module to terminate, said synchronization signal further adapted to cause an initiation of a data conversion cycle at said second analog input module after the termination of the diagnostic cycle, 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 and then assuming 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 to synchronize a diagnostic cycle and a data conversion cycle;
- initiating a performance of a diagnostic cycle of said second analog input module;
- and
- initiating a data conversion cycle after the diagnostic cycle has completed or been disabled via the synchronization pulse.
Dependencies are inferred from the claim text.