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觸點及線圈指令   PLC梯形圖語言的編程原則  

1、梯形圖由多個梯級組成，每個線圈可構成一個梯級，每個梯級有多條支路，每個梯級代表一個邏輯方程；

2、梯形圖中的繼電器、接點、線圈不是物理的，是PLC存儲器中的位(1=0N；0=0FF)；編程時常開/常閉接點可次引用，線圈輸出只能是一次；

3、梯形圖中流過的不是物理電流而是“概念電流”，只能從左向右流；

4、用戶程序的運算是根據PLC的輸入/輸出映象寄存器中的內容，邏輯運算結果可以立即被后面的程序使用；

5、PLC的內部繼電器不能做控制用，只能存放邏輯控制的中間狀態；

6、輸出線圈不能直接驅動現場的執行元件，通過I/模塊上的功率器件來驅動。

基本邏輯指令以位邏輯操作為主，在位邏輯指令中，除非有特殊說明，操作數的有效區域為：I、Q、M、SM、T、C、V、S、L且數據類型為BOOL觸點和線圈指令又分為：標準指令、立即指令、取反指令、正(負)跳變指令。

Heidenhain Encoder ROD 1424-003-625 250-040-01 used

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Parker Linear Actuator / Compumotor Step / Heidenhain

Heidenhain Rotary Encoder 295434-30 Rod 426

Heidenhain LIDA 47 Head 405 Scale Linear Encoder 540mm

Heidenhain Encoder Length Gauge MT12P EXE 610C MT 12P

Heidenhain Cable 310 126 03 31012603 12 pin new

Heidenhain 369124-06 Adapter Cable new

Heidenhain 310131-12 Adapter Cable new

Heidenhain EXE 610B Scale Interpolation Box 

HEIDENHAIN ENCODER ROD 426 2000 03S12-03 K (IN BOX)

Heidenhain LS 405 Linear Scale 216 mm of travel

Heidenhain LIF 48R

Heidenhain 650B X50/8 Interpolator

Heidenhain Interruption Box 262 788 01 #17793

HEIDENHAIN ROD 426.000B-2500/295 434 02 ENCODER **RFB**

HEIDENHAIN VRZ 403 G2 ELECTRONIC COUNTER

H# Heidenhain AK LIP 48A Id.Nr. 331 665-01 (2 units)

DR. JOHANNES HEIDENHAIN ROD 426 360 ENCODER ***NNB***

HEIDENHAIN LIDA 48 369428-01 SCANNING HEAD

Heidenhain EXe650 B X25/8 263 380 30 Interpolation Box

Heidenhain Interpolation Box EXE 610C Id.Nr.263 383 01 

Dr. Johannes Heidenhain Y Axis Optical Encoder

Dr. Johannes Heidenhain X-Axis Optical Encoder

25" Heidenhain LS 603C Digital Readout DRO Scale LS603C

HEIDENHAIN LINEAR SCALES Models # LS 402

Heidenhain EXE 602 D/5-F H2 H 2 Scale Box #235 322 28

Heidenhain EXE 602 D/5-F G12 G 12 DRO Box #235 322 28

Heidenhain Scale LS 106 LS106 ML 440mm

HEIDENHAIN 295434-KA ROTARY ENCODER ROD-426 ***NIB***

HEIDENHAIN PP 20R OPTICAL UNIT id Nr 285 662 01

HEIDENHAIN CORP 602E-EXE-NR-246-842-02 NSPP 602EEXENR24

Heidenhain SME 50 X50/2, EXE 50 X50 2 Interpulation Box

Heidenhain ROD 426.200B-1024 Encoder

HEIDENHAIN ROD426 (ROD 426 3000 02S12-03) ENCODER : NEW

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HEIDENHAIN Scanning Head LIDA 48, 369 428-06 0.75mm NEW

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HEIDENHAIN CORP ROD-426.001B-1125 USPP ROD426001B1125

Heidenhain linear scale LS 303 x 220mm

Lot 3 HEIDENHAIN ERN1387204862S14-70 Encoders Used ASIS

HEIDENHAIN CORP 295434-32 NSFP 29543432

HEIDENHAIN CORP 295434-94 NSFP 29543494

Heidenhain #309774-08 Control Cord 8 Conductor (N) W2/9

Heidenhain EXE 650B X50/10 Interpolation Box Digitizer

DR JOHANNES HEIDENHAIN GLASS READOUT SCALE (mi 8.00)

Heidenhain ROD 450 180 Rotary Encoder

HEIDENHAIN POWER CABLE # 226-998-01, NEW

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HEIDENHAIN CORP ROD-426-B-400 USPP ROD426B400

Heidenhain CNC Port for Teach Pendant 249 889 04

Heidenhain Exe 650B X25/8 ID.Nr. 263 380-30 NEW

HEIDENHAIN AE LS 186C 326 797-04 L G11 LINEAR SCALE

HEIDENHAIN AE LS 186C 326 797-04 L H1 LINEAR SCALE

HEIDENHAIN AE LS 187C ML ID 526 974-08 LINEAR SCALE

HEIDENHAIN ROD 1424.003 1250 Encoder

Heidenhain Corp. Transducer M# 243602-01 ~REPAIRED SUR~

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Heidenhain Model: LIP 58 Linear Encoder with Optic 

HEIDENHAIN 323897-07 ADAPTER CABLE 32389707

Heidenhain transducer LS 473 X 320MM

Heidenhain ML - AE LC 191F - 1540mm D-83301 Traureunt

Heidenhain 15SUBD Coupling Control Feedback Motor Cable

HEIDENHAIN EXE 650B X25/8

HEIDENHAIN CORP 295434-78 NSFP 29543478

HEIDENHAIN CORP ERN 480 03S12-03

HEIDENHAIN SCANNING HEAD LIP 401R LIP 40R NEW

HEIDENHAIN EXE 600 5V-S AMPLIFIER INTERPOLATION BOX,DRO

Heidenhain EXE 610 C Digitizer Interpolation Llida

Heidenhain Encoder ROD 529/1013.02500 

HEIDENHAIN EXE 610C INTERPOLATION DIGITIZER BOX "NIB" 

Bridgeport Heidenhain Relay Board 4679107 Type E 

HEIDENHAIN LS 403 LINEAR SCALE ML 370 mm for DRO system

HEIDENHAIN EXE 602E SCALE AND ENCODER AMPLIFIER 

SAJO Heidenhain 145C 131 _ TNC 135 Operating Manual CNC

Heidenhain Programming Manual #10026

NIB Heidenhain Rod 436 Encoder 295450-16 10000 27S12-03

Heidenhain Encoder 213 116-28 _ 21311628

HEIDENHAIN LS 403 GLASS SCALE,5" TRAVEL,DRO, LONG CORD

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Heidenhain LIP 40R Linear Encoder Head 40-R EXE 612 

Heidenhain ROD 426-4500 Rotary Shaft Encoder 58mm

HEIDENHAIN EXE 602 E INTERPOLATION DIGITIZING 246842-02

Heidenhain RV6129 Id.Nr. 295 280-4B

Heidenhain EXE 602 D/5-F H3 Amplifier Interpolation Box

HEIDENHAIN 253329-02 ENCODER ***NIB***

Heidenhain LIP 40R 332 107-01

Heidenhain LIF 10V Encoder

HEIDENHAIN ROD 426 1000 27S12-03

Heidenhain EXE 702 B Encoder Interface Unit

Heidenhain EXE 612 Id.Nr. 271 183-01

Heidenhain LIDA 400 Linear Encoder LIDA 409+47 370mm

Heidenhain LID 311/10 Encoder

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HEIDENHAIN LIP 29X ENCODER 

H# Heidenhain PP 10R Id.Nr. 280 985-01 (2 units)

HEIDENHAIN CORP 403504-12 NSFP 40350412

HEIDENHAIN CORP 235-322-22 USPP 23532222

HEIDENHAIN CORP 241-640-01 USPP 24164001

HEIDENHAIN EXE OUTPUT ADAPTER CABLE

Heidenhain EXE 602 D/5-F H3 Amplifier Interpolation Box

ROD-523-1A13.02000 Heidenhain Rotary Encoder

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Heidenhain Cable adapter Kabel 249 889 04 with 25050203

HEIDENHAIN INTERPOLATION CARD 25657501 - NEW

HEIDENHAIN EXE 610C Id.Nr 263 383 01

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heidenhain rod 436 5000 27S12-03

Heidenhain Amplifier Box EXE 602 D/5-F _ EXE602D5F

HEIDENHAIN CORP 29840215 NSFP 29840215

HEIDENHAIN 336 963-16,LS 186C LINEAR SCALE,

Heidenhain EXE 612 Id.Nr. 271 183-01 NEW

Heidenhain Scale DRO Amp Converter Box ? EXE 604/5-F

HEIDENHAIN CORP 343-421-09 NSFP 34342109

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