瑞恩57C330
PLC编程应该遵循以下基本原则。
1 外部输入、输出继电器、内部继电器、定时器、计数器等器件的接点可多次重复使用，无需用复杂的程序结构来减少接点的使用次数。
2 梯形图每一行都是从左母线开始，线圈接在右边，接点不能放在线圈的右边参看图4-20。
图4-20 规则2）的说明
a）不正确电路 b）正确电路
3 线圈不能直接与左母线相连。如果需要，可以通过一个没有使用的内部继电器的常闭接点或者特殊内部继电器R9010（常0N）的常开接点来连接，参看图4-21。
图4-21 规则3）的说明
N如果您有兴趣了解或急需本产品，请联系我们
联系人；陈工
电话：0592-5085329
手机：18030132586
QQ 1151195663
诚信经营，质量为首，诚信至上，真诚为您服务EW CUTLER HAMMER C799AG3M1 STEEL WALL-MOUNT ELECTRICAL ENCLOSURE D516040
HOFFMAN A1008CHNFSS STAINLESS 10X8X4 IN WALL-MOUNT ENCLOSURE B424273
NEW HOFFMAN A242408LP 24 IN STEEL 24 IN 8 IN ELECTRICAL ENCLOSURE D515847
HOFFMAN TYPE 13 STEEL 8X6X3-1/2 IN ELECTRICAL ENCLOSURE D460901
NEW HOFFMAN AHE6X6X4 STEEL 6X6X4IN WALL-MOUNT ELECTRICAL ENCLOSURE B396947
NEW HOFFMAN A6P4 STEEL PANEL REPLACEMENT PARTS ELECTRICAL ENCLOSURE B467246
NEW HOFFMAN F-66G90E STEEL 8X8X6 IN ELECTRICAL 90 DEGREE WIRE WAY D368799
NEW HOFFMAN A-NMV6 LARGE VENT ASSEMBLY ELECTRICAL ENCLOSURE D478434
NEW SIG 54784825 BOX COVER STAINLESS 4-1/4X2X1-5/8IN D273282
HOFFMAN A-517367 WALL-MOUNT FIBERGLASS 11-1/2 X 8 X 5 IN ENCLOSURE D234827
NEW SIG 54692686 COVER BOX 2-7/16X1-3/8X1-?9/16 IN D273316
NEW MIRCOM BB-300 BOX STEEL 4-1/2X3-1/2X2 IN WALL MOUNT ENCLOSURE B443345
NEW WALKER I003F-IS STAINLESS BLANKING PLATE 2-7/8IN ELECTRICAL ENCLOSURED31671?8
NEW HOFFMAN E1PBGSS 3-1/2 X 3-1/4 X 2-3/4 IN PUSHBUTTON ENCLOSURE D463522
ALLEN BRADLEY 194L-G3140 5-3/4X3-1/2X3-1?/2IN ELECTRICAL ENCLOSURE B298298
HOFFMAN A-806CH WALL-MOUNT STEEL 8X6X3-1/2 IN ELECTRICAL ENCLOSURE B211482
NEW BUD 1320 2-1/2X2-1/4X1-3?/8 IN WALL-MOUNT ELECTRICAL ENCLOSURE D439264
RAYCHEM JBS-100-A JUNCTION BOX 4-1/2X4-1/2X3-1?/2 IN ENCLOSURE B398994
HOFFMAN C-SD16166 CONCEPT 16X16X6IN STEEL WALL-MOUNT ENCLOSURE D506770
NEW CIRCLE AW STEEL 18X18X6 IN WALL-MOUNT ELECTRICAL ENCLOSURE D497109
NEW HOFFMAN Q-403018PCI 388X288X173MM WALL-MOUNT ENCLOSURE D434426
NEW WALL-MOUNT ALUMINUM 4X2-1/2X2IN ELECTRICAL ENCLOSURE D325995
HOFFMAN 2 DOOR LOCK HANDLE 48X48X16 STEEL FREE STANDING ENCLOSURE D442438
HOFFMAN F44LE9C ELBOW WIREWAY OUTSIDE OPEN STEEL 4X4 IN FITTING B341395
BEL S060604 WALL-MOUNT STEEL 6X6X4IN ELECTRICAL ENCLOSURE B202705
WALL-MOUNT STEEL 12X12X4 IN ELECTRICAL ENCLOSURE B312525
NEW HOFFMAN ASG8X8X6NK SCR CVR PULL BOX 8 IN STEEL 8 IN 6 IN ENCLOSURE D515825
NEW ALLEN BRADLEY 800H-1HZ4R ELECTRICAL ENCLOSURE SER C D293914
NEW ALLEN BRADLEY 800H-3HZ4 SER N STAINLESS 3-BUTTON ENCLOSURE D513417
NEW RALSTON PBM-325 10-3/4X9X5IN WALL-MOUNT FIBERGLASS ENCLOSURE B368585
STEEL 10X8X4 IN WALL-MOUNT ELECTRICAL ENCLOSURE B389577
HOFFMAN ALUMINUM 12X10X5 IN WALL-MOUNT ELECTRICAL ENCLOSURE D468170
NEW HOFFMAN Q-403018ABI 388X288X173MM ELECTRICAL ENCLOSURE D434420
HOFFMAN WALL-MOUNT STEEL 6X8X3-3/4 IN ELECTRICAL ENCLOSURE B331662
HOFFMAN E1PBX WALL-MOUNT STEEL 4X4X5IN ELECTRICAL ENCLOSURE 200278
NEW BUD CU-3001-A ALUMINUM 3-1/4X2X1-1/2 IN ELECTRICAL ENCLOSURE D214068
NEW HOFFMAN X-CS712D DOOR COVER SOLID DESK TOP STEEL 750X1200MM D254572
INTERMATIC ET70115CR ELECTRONIC TIMER CLOCK CONTROL 9X5X4IN ENCLOSURE B293847
HOFFMAN F-66W12 WALL-MOUNT STEEL WIREWAY 6X6X12 IN ELECTRICAL ENCLOSURE B289846
HOFFMAN T-524284 WALL-MOUNT STEEL 13-1/2X12-1/2X6?IN ELECTRICAL ENCLOSURE B200965
NEW HOFFMAN X-CS912 COVER SOLID DESK BACK STEEL 900X1200MM D254580
NEW HOFFMAN CP2016G STEEL 18.20X14.20 IN ELECTRICAL ENCLOSURE PANEL D245364
NEW SIG 56058639 BOX CAP STAINLESS 2-7/16X1-5/8X1-?7/16IN D273229
HAMMOND PJ20168T FIBERGLASS 20X16X8IN WALL-MOUNT ENCLOSURE D498864
HOFFMAN E-1PBX STEEL WALL-MOUNT PUSHBUTTON ELECTRICAL ENCLOSURE 4X5X5IN D507698
JOHNSON CONTROLS C023094-02 TYPE1 24X24X5IN ELECTRICAL ENCLOSURE B295733
HUBBELL 142P WIEGMANN 18X18X6 IN STEEL WALL-MOUNT ENCLOSURE D443644
HOFFMAN 462248 WALL-MOUNT STEEL PUSHBUTTON 5-3/4X3-1/
