140CPU11303 140CPU11303140CPU11303 140CPU11303
為了實(shí)現(xiàn)被控對(duì)象的工藝要求，以提高生產(chǎn)效率和產(chǎn)品質(zhì)量。
1. PLC的選擇除了應(yīng)滿足技術(shù)指標(biāo)的要求外，還應(yīng)重點(diǎn)考慮該公司產(chǎn)品與售后服務(wù)情況。（盡量選擇主流產(chǎn)品）
2. zui大限度地滿足被控對(duì)象的控制要求。
3. 在滿足控制要求的前提下，力求使控制系統(tǒng)簡(jiǎn)單、經(jīng)濟(jì)，使用及維修方便。
4. 保證控制系統(tǒng)得安全、可靠。
5. 考慮到生產(chǎn)的發(fā)展和工藝的改進(jìn)，在選擇PLC容量時(shí)，應(yīng)適當(dāng)留有余量。
盡管梯形圖與繼電器電路圖在結(jié)構(gòu)形式、元件符號(hào)及邏輯控制功能等方面相類似，但它們又有許多不同之處，梯形圖具有自己的編程規(guī)則。
鄭娟萍
廈門仲鑫航自動(dòng)化設(shè)備有限公司
1）每一邏輯行總是起于左母線，然后是觸點(diǎn)的連接，zui后終止于線圈或右母線（右母線可以不畫出）。注意：左母線與線圈之間一定要有觸點(diǎn)，而線圈與右母線之間則不能有任何觸點(diǎn)。
2）梯形圖中的觸點(diǎn)可以任意串聯(lián)或并聯(lián)，但繼電器線圈只能并聯(lián)而不能串聯(lián)。
3）觸點(diǎn)的使用次數(shù)不受限制。
4）一般情況下，在梯形圖中同一線圈只能出現(xiàn)一次。如果在程序中，同一線圈使用了兩次或多次，稱為“雙線圈輸出”。對(duì)于“雙線圈輸出”，有些PLC將其視為語(yǔ)法錯(cuò)誤，不允許；有些PLC則將前面的輸出視為無(wú)效，只有zui后一次輸出有效；而有些PLC，在含有跳轉(zhuǎn)指令或步進(jìn)指令的梯形圖中允許雙線圈輸出。
5）對(duì)于不可編程梯形圖必須 經(jīng)過(guò)等效變換，變成可編程梯形圖。
SOLA TYPE CVS CONSTANT VOLTAGE TRANSFORMER 23-22-112-2 104540
SQUARE D .500KVA 1-PH TRANSFORMER 500SV1B 102678
TROMBETTA CORP. 110V 60CYC TRANSFORMER F-324
WINSSON ENTERPRISES CO. TRANSFORMER REV.B 62-1106 99896
TRANSFORMER 091224 UTU 19751
TRANSFORMER 12VDC 90112C12
WESTINGHOUSE 60HZ TYPE EPB SINGLE PHASE TRANSFORMER TYPE 2 2D46502H01
SOLA 0.8A 95-130V CONSTANT VOLTAGE TRANSFORMER 23-13-060-2
ALLEN BRADLEY CIRCUIT TRANSFORMER 50/60 HERTZ X-343858
100/220V TRANSFORMER UTU 19730 / 100223
SPITZNAGEL 230V 50-60HZ ENCLOSED POWER TRANSFOMER NNB D 78609
IMPERVITRAN .350KVA CONTROL TRANSFORMER B350-0377-1 104496
CHUAH SHUN ELECTRIC CLASS B TRANSFORMER 430-0141 99881
SOLA MCR 120V MINI/MACRO COMP. REGULATOR 63-23-112-4
MIDWEST ELECTRIC CURRENT TRANSFORMER 3CT115B 104733
KASUGA CURRENT TRANSFORMER 50/60HZ 15VA A153K
UNKNOWN TRANSFORMER UTU 18240 090922
C.T.O CERAMIC TRANSFORMER 69089-6R
TRANSFORMER TR-11036 69000-2-R
FINCOR 350VA (.350KVA) TRANSFORMER 1039818-08
ABB GST 26/09KW TRANSFORMER 3ADT 745 054
FOXBORO MAGNETIC GLOW TRANSMITTER IMT20-PA10FGZ 102757
SQUARE D TRANSFORMER W/ FUSE HOLDER 9070TF300D1
ROMAN 1PH 650V 170KVA WELDING TRANSFORMER MODEL TRU84BX-M 101942
INSTRUMENT TRANSFORMERS CURRENT TRANSDUCER PCL-20 102461
HAMMOND TRANSFORMER 100VA 50/60HZ MT100MQMJ
DELTEC DT SERIES TRANSFORMER DT 25T1 / 5122072 105549
ACME TRANSFORMER 500VA TYPE-NO TRANSFORMER TA-2-81215 100055
ACME 3PHASE 600V TRANSFORMER ALRC-008TBC
FOXBORO ELECTRONIC TRANSMITTER 0-14PH 870PH-70 102761
CUTLER HAMMER TRANSFORMER 600V 1A C340BG SERIES A1
NANA ELECTRONICS 200A-4V TRANSFORMER NNC-20CA-SH 99703
FANUC ROBOTICS 24A REACTOR A81L-0001-0083#3C
TRANS FEC FORMER TRANSFORMER 50/60HZ T-1 [HASE 1
HOLOPHANE 400WHPS TRANSFORMER BL-54 105039
YASKAWA 50/60H 107VA TRANSFORMER CPT10199
OBARA WELDING TRANSFORMER RT656F-506
BROWNELL 100:5 A CURRENT TRANSFORMER 2 SFT-101 103725
UNIVERSAL LIGHTING TECH AUTOTRANSFORMER M175MLTAC3M 102488
UNKNOWN MFG MICRO TRANSFORMER LOT OF 2 40-9101 69743-4A
DAYKIN TRANSFORMER 500VA DKN 180
MCI CURRENT TRANSFORMER 06-115903-057
BROWNELL ELECTRO CURRENT TRANSFORMER 103278
750VA 240/480V 1PH 60HZ TRANSFORMER CS750LX/X
ROMAN 1PH 440V 120KVA WELDING TRANSFORMER F4466120C1BB 100470
GE RENEW COIL 3199878 102723
EGS INDUSTRIAL CONTROL TRANSFORMER 50/60HZ E250 CLASS 105
GENERAL ELECTRIC TRANSFORMER 90/208V 60HZ 9T22B5203
IMPERVITRAN 50/60HZ .050KVA TRANSFORMER B050BTZ13JK 103869
ACME CONTROL TRANSFORMER 250VA 50/60HZ TA-2-81213
EMB 0,184KVA 230V TRANSFORMER TTT 0,25 / 14026801/02/09 99582
SUN HYDRAULICS CURRENT TRANSFORMER 24VDC 770-224 OFG7
CURRENT TRANSFORMER RATIO 50:5A 600V 5RBL-500 98931
SQUARE D 1 PHASE .500 KVA 60HZ TRANSFORMER 500SV1B
HAMMOND TRANSFORMER 60H 1500VA EP6P TYPE E
ROMAN 1PH 50KVA WELDING TRANSFORMER S46650X2238 100005
HAMMOND 14A TRANSFORMER 185G12
POWERTRAN 1PHASE 1KVA TYPE FB TRANSFORMER PTN102-1K
SQUARE D 50/60HZ TRANSFORMER 9070TF350D1 99055
ALLEN BRADLEY CONTROL CIRCUIT TRANSFORMER 1497-N2
TRAFOMIC OY 250VA TRANSFORMER 251971 / 16213 104487
RELIANCE TRANSFORMER ASSEMBLY NIB TR11070 / 69000-3R
SQUARE D TYPE 3R 1PH 60HZ 15KVA TRANSFORMER 15S40F 100295
EIL CURRENT TRANSFORMER 60:5 RT-600 600V RT-600
ROMAN 150KVA WELDING TRANSFORMER F486150DL3114-S
RELIANCE ELECTRIC VOLTAGE TRANSFORMER TR-9735 64977-49R
IMPERVITRAN CONTROL TRASNFORMER .350 KVA B350BTZ13 104022
SQUARE D 50/60HZ 0.05KVA TRANSFORMER 9070T50D2 101028
TRANSFORMER 387540-600 REV A 99884
RELIANCE ELECTRIC TRANSFORMER 50:1 64670-4-RX
GENERAL ELECTRIC COIL 115/120VDC 1D106G3A
POWERTRAN 2KVA 1PHASE TYPE-FB TRANSFORMER PTN102-2K
GE TRANSFORMER 55-172809G008
GENERAL ELECTRIC TRANSFORMER 400W S-51 HPS GES400ML5AA4-5
GENERAL SIGNAL GS HEVI-DUTY .250KVA TRANSFORMER T250
EATON 50 /60 1500/5A HZCURRENT TRANSFORMER HF7A P2 741H0060 100120
CUTLER HAMMER CONTROL TRANSFORMER C0350E2AFB
RELIANCE ELECTRIC 110V COIL TRANSFORMER 50/60 CY 193L1
JEFFERSON ELECTRIC .250KVA 1PH POWERFORMER TRANSFORMER 211-041
ALLEN BRADLEY TRANSFORMER 1497-G-BASX-0-N SER A
STEARNS 380/480VAC 50/60HZ TRANSFORMER 635460609 9921 103381
SHENZEN TRANSFORMER MODEL AL-B 109-010ALB-06
SIGNAL CLASS B-3 TRANSFORMER DP-241-8-24 99477
CONTACT INDUSTRIES CURRENT TRANSFORMER CT100C-24B1
ACME TRANSFORMER 1000VA 50/60HZ TRANSFORMER TA-2-81217
MICRON IMPERVITRAN 100VA CONTROL TRANSFORMER B100MBT713RK 102918
MGM 15KVA 240/480V 60H TYPE HS DRY TYPE TRANSFORMER HS15C3B2SH
INSTRUMENT TRANSFORMERS 50:5 A RATIO 600V TRANSFORMER 5SFT-500
WESTINGHOUSE 100:5 RATIO CURRENT TRANSFORMER 7524A98G01 105541
DAYKIN TRANSFORMER TS106
GE FANUC REACTOR TRANSFORMER A81L-0001-0101#C
CUTLER HAMMER TRANSFORMER 250VA 50/60HZ C0250E2A
TOYO CURRENT TRANSFORMER JIS C1731 YAL-1
ALLEN BRADLEY TRANSFORMER 250VA 60HZ LR38216 TYPE H
KYOSHIN 480/800VA 1PHASE 100V CONTROL TRANSFORMER
EMB 0.5A 12V 220/242V TRANSFORMER GT 0,03 / 13961301/04/09 99672
ROMAN 136KVA TRANSGUN WELDING TRANSFORMER T486136X5411
POWERTRONIX TRANSFORMER AA-015536 REV. B
FEC INC. 750VA 1PH TRANSFORMER T-1
ACME 1PH 60HZ 240X480 TO 120/240V 5KVA TRANSFORMER T-2-53014-4S
NECO HAMMOND TRANSFORMER 250V 1PH 511AO6GU2
ACME TRANSFORMER TRANSFORMER 120X240V 1.0KVA T-3-53040-S
ALLEN BRADLEY 1321-3TH005-BB 5KVA TRANSFORMER 1321-3TH005-BB
INSTRUMENT TRANSFORMERS 200:0.2 A 50-400 HZ 600V CURRENT SFT-201-0.2 101609
MICRON CONTROL IMPERVITRAN 250VA TRANSFORMER B250-0834-8 104140
REX MANUFACTURING ENCL. 3R 1PH 7.5KVA TRANSFORMER SC7LK/E3R
RELIANCE ELECTRIC 230V CONTACTOR COIL NIB 76628-AX
HAMMOND NEMA 3R 3PH DRY TYPE 75KVA TRANSFORMER 166288
ACME TRANSFORMER 3 PH 60HZ 600V AC LINE REACTOR ALRC-003TBC
HAMMOND TYPE E 60HZ 240/480V 1 PHASE TRANSFORMER EN6P 100650
INSTRUMENT TRANSFORMERS 120V 50/60HZ CURRENT TRANSDUCER PCL 102622
RITZ 50-60HZ TRANSDUCER KSO 104/2 98963
ALLEN BRADLEY 550V TYPE-M CONTROL CIRCUIT TRANSFORMER X-343909 103446
DAYKIN TRANSFORMER DISCONNECT 60HZ 2000VA LTFS-01 U
IMPERVITRAN 50/60HZ .150KVA TRANSFORMER B150-0833-8 103929
INSTRUMENT TRANSFORMERS 75:A 10KV 600V CURRENT TRANSFORMER 2 SFT-750 104402
SAO ELECRTRIC MFG. CO. LTD. 8KVA TRANSFORMER UABUL180K8
TRANSFORMER 1053367 TTI-14016 1229-8910
INSTRUMENT TRANSFORMERS 400:5A 600V 50-400HZ Y25645-008-06
DONGAN TRANSFORMER 50/60HZ 33-250-PM
FUNAHASHI ELECTRIC CO. 9KVA TRANS FEC FORMER TRANSFORMER TYPE T-3
ACME CONTROL TRANSFORMER T-68328 / 19B209496P1
IMPERVITRAN 50/60HZ .150KVA TRANSFORMER B150-0894-8 103912
TIME MARK CURRENT TRANSFORMER 50:5 1VA 50-400HZ 276B50
230/460V 1PH 25VAC CONTROL TRANSFORMER 04P08-00031-00
HPS SINGLE-PHASE STEP DOWN TRANSFORMER, NNB 189350
EMB 12V 220/242V 0,05A 0,5A TRANSFORMER GT 0,03 / 13961301/04/09 99342
MICRON TRANSFORMER 50/60HZ B050MBT713RK
ALLEN BRADLEY 1321-3TH005-BB 7.5KVA TRANSFORMER DM005JJ
SQUARE D 750KVA 50/60HZ INDUSTRILA CONTROL TRANSFORMER 9070 TYPE K750D5 104727
ALLEN BRADLEY 0.130KVA 240/480V TRANSFORMER SER.A 1497-C-BASX-3-N
EMB SW 0.05 0.01KVA TRANSFORMER 31728/27/08 / 8000019232 99116
ALLEN BRADLEY .075KVA 220/440V TRANSFORMER SER.B 1497-N2 / X-343858
SQUARE D SCHNEIDER ELECTRIC TYPE 3R 7.5KVA TRANSFORMER 7SQ58112 101965
GS HEVI-DUTY ELECTRIC 5.0KVA TRANSFORMER TYPE SMTR
GENERAL ELECTRIC 50/60HZ KVA .050 TRANSFORMER 9T56Y2922 103916
SAO ELECRTRIC MFG. CO. LTD. 5KVA TRANSFORMER UAB-BUL180K5
HAMMOND NEMA 3R 3PH DRY TYPE 20KVA TRANSFORMER 166290
AWEH KIRCHNER 50/60HZ 400/480/500V TO 400/230V TRANSFORMER KTT66272
SQUARE D 50/60HZ .35 KVA TRANSFORMER 9070TF350D1 100579
EGS SOLA MCR 1500VA TRANSFORMER 63-23-215-8
JEFFERSON ELECTRIC 1 PH 60HZ POWER TRANSFORMER DAMAGED LABEL TYPE 3R
WESTINGHOUSE CURRENT TRANSFORMER 40:5 TYPE ECT-5 254A586G05
ROMAN 1PH 480V 65KVA WELDING TRANSFORMER MODEL TRU80BX 101945
MICRON 575V .350KVA CONTROL TRANSFORMER BZX350W15 103627
VALUTRAN 50/60HZ .250KVA INDUSTRIAL CONTROL TRANSFORMER V250MBT13XK
KASUGA 15VA 50/60HZ 1-A1 CLASS 1.0 CURRENT TRANSFORMER CT 15 3 K 101261
ALLEN BRADLEY AB20607 TYPE K 5KVA TRANSFORMER D005JJ
ACME TRANSFORMER AC LINE REACTOR 3PH 60HZ 600V ALRC-004TBC
POWERTRAN 1PH 240X480 TO 120V 3KVA STEP-DOWN TRANSFORMER EF480L3000
SOA ELECTRIC 50/60HZ 3PH 4.5KVA TRANSFORMER UABUL180K4P5
EGS SOLA MCR 120/208/240V 5000VA COMPUTER REGULATOR 63-23-250-8
REX MANUFACTURING 240/480 TO 120/240V 15KVA TRANSFORMER SC15LK/E3
WESTINGHOUSE CURRENT TRANSFORMER 100:5 TYPE ECT-5 254A586G08
ADVANCE 277V 1.70A CW AUTOTRANSFORMER 71A8433
HAMMOND 460 TO 460Y/266V 3PH 11KVA DRY TYPE TRANSFORMER DM011JJ 98945
GE 5.00KVA 1PH SERVICENTER TRANSFORMER 9T21S1050 101798
SOLA COPPER LINE DC POWER SUPPLY 39-408
MICRON IMPERVITRAN .150KVA 40HZ TRANSFORMER BZX150W15 103893
GE 240/480 TO 120/240V 5KVA TYPE QMB TRANSFORMER 9T21B1004G2
ZELISKO 400V 20NM TRANSFORMER ZGS10 / 3.6/10/10/40KV
GE TYPE-IP 2KVA CONTROL TRANSFORMER 9T58B54
ADVANCE 120 VOLTS 1.13 AMP 60 HZ TRANSFORMER REL-2P60-S
TOGI TRANSFORMER 50/60 HZ 200VA TRH200-21N
SOLA CVS 2000VA CONSTANT VOLTAGE TRANSFORMER 23-26-200
GE TYPE ML 3PH 60HZ 11KVA TRANSFORMER 9T21B3004G22
SQUARE D SCHNEIDER ELECTRIC TYPE 3R 5KVA TRANSFORMER 5SQ58111 101978
TEG TRANSISTOR MODULE, DAMAGED KP9 700-65 200908
EGS SOLA MCR 500VA MINI/MICRO COMPUTER REGULATOR 62-23-150-8
SQUARE D TRANSFORMER 60HZ 3S40F
EGS HEVI-DUTY 480 TO 240/120V 9KVA TRANSFORMER HT5F9AS
SOLA COMPUTER REGULATOR 63-23-150-8
ALLEN BRADLEY 300-5 CURRENT TRANSFORMER 80025-158-12 103424
HOLOPHANE 480V 60 HZ 2.3A TRANSFORMER S5Z0D1 101680
EMB SW 0.05 0.01KVA TRANSFORMER TA40B / 13492202/39/08
CENTER 120V CONTROL TRANSFORMER SPA-150
WESTINGHOUSE 150:5 TYPE ECT 5 CURRENT TRANSFORMER 254A586G09
HAMMOND NEMA 3R 75KVA TRANSFORMER 166288, DENT
WESTINGHOUSE CURRENT TRANSFORMER 50:5 TYPE ECT-5 254A586G06
REX MANUFACTURING 3R 240/480 TO 120/240V 15KVA TRANSFORMER SC15LK/E3R
SQUARE D TRANSFORMER 9070 SER.A K100D1
AZZ BALLAST TRANSFORMER MAR28002U
DAYKIN 480V 6.9A PHASE 1 TRANSFORMER DISCONNECT LTFS-15
HAMMOND POWER SOLUTIONS 240/480V TO 120/240V 5000VA TRANSFORMER EU6P 101797
OBARA W-TT-AA06/C 65KVA WELDING TRANSFORMER RT656F-506
AJAX 3PH PRI. V 380/460 SEC. V MULTI. 47KVA TRANSFORMER 5103722-111-R2
BROWNELL ELECTRO 100:5A 600V 50-400HZ CURRENT TRANSFORMER 2 SFT-101 102970
FANUC ROBOTICS 50/60HZ 8.1KVA TRANSFORMER A80L-0026-0028
EMB 50/60HZ 204/400V 10KVA DTST 12.5 TRANSFORMER 8000023899-01
GE SERVICENTER MINI-UNIT SUBSTATION NP 475A445AAP003 R2
WESTINGHOUSE 4200V 35:1 SINGLE PHASE POTENTIAL TRANSFORMER TYPE PT
DAYKIN ELECTRIC 500V 1.1 AMP 60HZ 1 P TRANSFORMER GPFS-07 U
WESTINGHOUSE CURRENT TRANSFORMER 50:5 TYPE ECT-5 254A586G06
ALLEN BRADLEY 2400V 120V 1.0KVA 1PH VOLTAGE TRANSFORMER 25638-510-01 103249
ELTRA TRANSFORMATOREN 230V TRANSFORMER GDC 0.13 9800080
HAMMOND NEMA 3R 480/277V 3PH DRY TYPE 75KVA TRANSFORMER DM075KK 100296
PRECITEC TRANSFORMER 350VA 50/60HZ 10OHM ZE SC 800 TR P0800-130-00001
SUPERIOR ELECTRIC POWERSTAT 1.0KVA VARIABLE TRANSFORMER 216CU-2
WESTINGHOUSE CURRENT TRANSFORMER 7:5 TYPE ECT-5 254A586G07
EGS HEVI-DUTY 480 TO 208Y/120V 3PH 6KVA TRANSFORMER HT1F6AS
ABB AQ TRAFO AB SLTF 4 TRANSFORMER 3HAC 6163-1 W/ 3HAC 6326-1 101281
IMEL POLAND 160/320V 64KVA DRY TYPE TRANSFORMER T2-0090-03
POTTER & BRUMFIELD TRANSFORMER 120V 50/60HZ 10A KB23AG
SOLA CVS WAVE OUTPUT TRANSFORMER, 7500 VA, P/R 23-28-275-6
