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4-11 Program Execution
When program execution is started, the CPU cycles the program from top to bot-
tom, checking all conditions and executing all instructions accordingly as it
moves down the bus bar. It is important that instructions be placed in the proper
order so that, for example, the desired data is moved to a word before that word
is used as the operand for an instruction. Remember that an instruction line is
completed to the terminal instruction at the right before executing an instruction
lines branching from the first instruction line to other terminal instructions at the
right.
Program execution is only one of the tasks carried out by the CPU as part of the
cycle time. Refer to Section 6 Program Execution Timing for details.
Program Execution
Section 4-11
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...