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6-1
Cycle Time
To aid in PC operation, the average, maximum, and minimum cycle times can be
displayed on the Programming Console or any other Programming Device and
the maximum cycle time and current cycle time values are held in AR 26 and
AR 27. Understanding the operations that occur during the cycle and the ele-
ments that affect cycle time is, however, essential to effective programming and
PC operations.
The major factors in determining program timing are the cycle time and the I/O
response time. One run through all required CPU operations is called a cycle;
the time required for each cycle is called the cycle time.
The overall flow of the CPU operation is as shown in the following flowchart.
Cycle Time
Section 6-1
Содержание SYSMAC C200HS
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Страница 2: ...C200HS Programmable Controllers Operation Manual Revised February 2002...
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Страница 379: ...371 SR word Corresponding key s Bit 279 03 04 05 3 06 07 VER 08 09 Monitoring Operation and Modifying Data Section 7 1...
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Страница 471: ...469 Programmer Program Date Page TC address T or C Set value Notes TC address T or C Set value Notes Timers and Counters...