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SECTION 8
Communications Timing
This section describes the time required for remote I/O communications and message communications.
8-1 Remote I/O Communications Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . 190
8-1-1 Communications Cycle Time and Refresh Time . . . . . . . . . . . . . . . 190
8-1-2 I/O Response Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
8-1-3 More than One Master in Network. . . . . . . . . . . . . . . . . . . . . . . . . . 194
8-1-4 System Startup Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
8-2 Message Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
8-2-1 Message Communications Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
8-2-2 Calculating the Maximum Message Response Time . . . . . . . . . . . . 197