If read write error, keep last I-O status for next cycle

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CPC
G05B2219/21149

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GPHYSICS G05Controlling systems G05BCONTROL OR REGULATING SYSTEMS IN GENERAL FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS G05B2219/00Program-control systems

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G05B2219/21149If read write error, keep last I-O status for next cycle

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Patents Grantslast 30 patents

Information Patent Grant
Redundant, multitasking industrial controllers with synchronized da...
- Patent number 6,411,857
- Issue date Jun 25, 2002
- Rockwell Automation Technologies, Inc.
- Mark A. Flood
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Redundant multitasking industrial controllers synchronized data tables
- Patent number 5,912,814
- Issue date Jun 15, 1999
- Allen Bradley Company, LLC
- Mark A. Flood
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Error control apparatus using restore memory for recovering from pa...
- Patent number 4,864,531
- Issue date Sep 5, 1989
- La Telemecanique Electrique
- Jesse T. Quatse
- G05 - CONTROLLING REGULATING