在PLC的编程语言中，梯形图是**为广泛使用的语言，通过PLC的指令系统将梯形图变成PLC能接受程序，由编程器键入到PLC用户存储区去。而梯形图与继电器控制原理图十分相似，主要原因是PLC梯形图的发明大致上沿用户继电器控制电路的元件符号，仅个别处有些不同。

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CBI QL-1(13) 10A Circuit Breaker

CBi QZ-2(13)-D Circuit Breaker 277/480V, 5A, 2-Pole

CCH PIGTAILED SPLICE CASSETE 24F LC UPC DUPLEX OS2 CCH-CS24-A9-P00RJ !

CCS LDL-TP-51x51 Flat Light, Voltage: 12VDC, Power: 4.4W Max, Red LED Color

CCS LDR2-70RD Ring Light, Red LED, 70mm OD, 35mm ID, Voltage: 12VDC, Power: 6W

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CCS LDR2-90RD Ring Light Visible Red w/Diffuser 12VDC 9.5W 2" Orifice 1.5" ID

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CCS LFV2-70RD Coaxial Light Unit *See Details*

CCS LFV-CP-18-BL Coaxial Lighting w/Cube Beam Splitter Blue

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CCS PD-1012 LED Power Supply 120VAC Input, 12VDC 9.5W Output

CCS PD-1012 Single Channel Digital Control Unit, In: 100-120VAC, Out: 12VDC

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Ceam CI000829NIK00 2D Adjustable Invisible Hinge, Nickel-Plated, 180-degrees

Celduc SC864910 Solid State Relay 90-240VAC Input, 24-520VAC 50A Output

Cema 3 Position Switch with Flip Cover, P9B10VN NO SPST, P9B20VN NO DPDT x2

Cema 3 Position Switch, P9B10VN NO SPST, P9B20VN NO DPDT x2

Center Line 200 Butterfly Valve, Size: 4", With PMV EP5 Positioner and Actuator

Center Line 55 Series 200 Butterfly Valve 4" Diameter 200PSI ANSI Flange 316SST

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Center Line 55 Series 200 Butterfly Valve, 8" Diameter, Pressure Rating: 200psi

Center Line 61 200 4" Butterfly Valve BLX V100 Electropneumatic Positioner

Centerline 800 Check Valve, Size: 8", Pressure Rating: 250psi, *Broken Spring*

Centerline 800 Check Valve, Size: 8", Pressure Rating: 250psi, *Missing Spring*

Centium ICN-2S39 Ballast, Voltage: 120 to 277VAC 50/60Hz

Central Data ST-1622 16-Port SCSI Terminal Server w/Power Supply

CENTRAL MACHINERY TWO SPEED VARIABLE BENCH DRILL MILLING DRILLING MACHINE 44991

Century CS-66-FHC6-5FA AC Motor, Voltage: 115/230VAC 60Hz, Speed: 1725RPM

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CGI 23PL1000 Planetary Gearhead 100:1 NEMA 23 Mount 1/2" Output Shaft

CGI Inc. 017PLX1000-XX-17N06 Gearhead NEMA 17 100:1 Ratio *Missing Key*

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CH Products 100-550 12 Button Hall Effect Joystick 3 Axis 12 Button USB

CHAMPION ONE 10G ER XFP SF 1270TX/1330RX 40KM 10GXFP27B40L

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Chatillon DFGRS-50 Force Gauge 50lb x .02lb 25kg x .01kg 250N x .1N, Parts Only

Chatillon DFM-10 Digital Force Gauge, 10 lbs Capacity, 0.01 lb Resolution

CHATSWORTH PATCH RACK 19 IN 13394-708 BLACK

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Checkline TE-100 3-Roller Tension Sensor, Measuring Range: 0-100g, 0-1VDC Output

CHECKPOINT 10Gbase-SR SFP OPTICAL TRANSCEIVER CPIP-A-TR-10SR-S+ FOR CPIP-A-2-10

CHELSIO DUAL PORT 10 GIGABIT ETHERNET SFP+ CARD PCIE CC2-N320E-SR

Chemtrol U51TB-V 1" Valve