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Omron NE1A-SCPU01 - 07-2009 - Local I;O Response Time

Omron NE1A-SCPU01 - 07-2009
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217
SECTION 11
Remote I/O Communications Performance and
Local I/O Response Time
11-1 Outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
11-2 Operational Flow and Cycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
11-3 Startup Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
11-4 I/O Refresh Cycle Time and Network Reaction Time . . . . . . . . . . . . . . . . . . 222
11-5 Reaction Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
11-5-1 Reaction Time Concepts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
11-5-2 Calculating the Reaction Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
11-5-3 Verifying the Reaction Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

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