程序循环功能循环执行梯级逻辑指定次数，同时变更INDEX(当前循环计数)变量的值。程序循环功能开始于FOR_ _LOOP指令，结束于END_ FOR指令。重复执行的梯级逻辑循环于FOR_ LOOP和END_ FOR这两个指令之间。在正常结東循环之前条件具备，EXIT_ FOR指令激活，那么就结束循环。.
Siemens 6ES7361-3CA01-0?AA0 Expansion Module #22300
Omron Temperature Controller E5AX-A-F, 50/60 Hz #35709
Omron Temperature Controller E5AX-A-F, 50/60 Hz #35710
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Box of 19 Struers Cut-Off Wheel 34TRE, 3820 RPM, #3
Omron CJ1W-ID232 Intput Module #21129
RRR Oil Filter BU32, 1940 #29541
Van Dorn Transformer 370082-B1 #27313
Modicon DAP218/AS-BDAP-?218 Output Module #15234
General Electric IC610MDL176A Output Module #6673
Cincinnati Milacron 3 531 3697A PC Board Card #6721
PNEU-Con Circuit Card 15007002 #21084
Square D Circuit Breaker FAL-36007-12M, 7 Amp #28460
Allen Bradley Communication Module 1756-DNB, Series
Basicon 1700-001-023-01 PC Board #19182
Barber Colman A-13901 MACO 4000 Input PC Board #19480
General Electric Circuit Breaker TFJ236200 #38773
Westinghouse Circuit Breaker FB31550MRL #38775
Gould Modicon Input Module AS-B351-001, 115 VAC #31
