Allen-Bradley
1775-KA
Allen-Bradley 1775-KA Communication Adapter Module Data Highway Modem Interface
Out of stock
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PLCs & Automation
2,686 listings · 2,257 in stock
2,686 PLCs & Automation listings in 6 categories, from makers like Allen-Bradley, Siemens, Mitsubishi. Surplus, used and new-surplus, every item photographed. Free shipping to all 50 US states and zero lead time on everything in stock.
Categories in PLCs & Automation
Avtron
A20136
Avtron MACH. D22558 A20136 Main CPU Control PLC Module Programmable Controller
Out of stock
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Sixnet
60-PB16-F
Sixnet 60-PB16-F CB381C1 16 Channel Fused I/O Rack OAC-01 AC Output IAC-01 Input
Out of stock
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Avtron
A18123-1
Avtron A18123-1 Rev M Bridge Interface Module PCB Circuit Board SCR Drive Card
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Allen-Bradley
1794-IV16
Allen-Bradley 1794-IV16 Industrial Flex I/O Digital Input Module 24VDC Sourcing
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Allen-Bradley
1794-OB16P
Allen-Bradley Flex I/O 1794-OB16P 24VDC
Out of stock
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SMC
EX150-SDN1-X98
SMC EX150-SDN1-X98 VQ2000 Valve Manifold DeviceNet 24VDC Class2 0.1A 16 PNP
Out of stock
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IAI
RPCON-42P
IAI Stepper Actuator Controller Corporation RPCON-42P ROBO NET PCON DC24V 2A
Out of stock
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Fanuc
AWE1 A058-2301-C302
Fanuc Teach Pendant AWE1 A058-2301-C302 (ON/Off Button and Screen Broken)
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ABB
3BSE021456R1
ABB 3BSE021456R1 TB840
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Allen-Bradley
1769-ECR
Allen-Bradley 1769-ECR SER A REV 1
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Allen-Bradley
1762-OB16
Allen-Bradley 1762-OB16 SER A REV A 24VDC
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Reliance Electric
57C410
Reliance Electric 57C410 57410 J-3631 Isolated Analog Output Module DCS 0.010A
Out of stock
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Yaskawa
JEPMC-PS210
Yaskawa JEPMC-PS210 PS-01 MP920 AC Input Power Supply Module AC100/200 VER.A1
Out of stock
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Yaskawa
JEPMC-IO220
Yaskawa LIO-01 JEPMC-IO220 Digital Input / Output Module (DAMAED CASING) MP920
Out of stock
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Siemens
S7 6ES7
Siemens Simatic S7 6ES7 322-1HF01-0AA0
Out of stock
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Allen-Bradley
1746-IB32
Allen-Bradley SLC500 1746-IB32 Digital Input Module 32 Pt 15-30VDC Sinking Ser C
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Allen-Bradley
1747-SDN
Allenbradley SLC-500 1747-SDN C REV 01 97349373
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Allen-Bradley
1747-SDN
Allen Bradley SLC500 1747-SDN SER B Devicenet Scanner Module
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Telemecanique
STBDDI3610
Telemecanique STBDDI3610 Advantys Input Module 24VDC 6pt Sink 1ms STB XBA 1000
Out of stock
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Allen-Bradley
1746-OB16
Allen-Bradley SLC 500 1746-OB16 Ser.d Output Module
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Mitsubishi
FR-E720-0.1KNC
Mitsubishi Electric PLC FR-E720-0.1KNC 3PH 5-8A AC200-240V 50/60HZ
Out of stock
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Mitsubishi
Q35B
Mitsubishi Electric Melsec-Q Q35B 5VDC 0.11A
Out of stock
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Mitsubishi
QJ61BT11N
Mitsubishi QJ61BT11N MELSEC-Q CC-Link Ver.2 Master/Local Network Module PLC
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Need more units than we list, a part you don't see here, or prices for a whole list? Send us the part numbers and quantities and we reply within 1 hour during business hours (Mon to Fri 9 to 4:30 CT).
Guides for PLCs & Automation
- Legacy PLCsSLC 500 End of Life: Keep Running or Migrate?Where the SLC 500 stands, which spares keep one running, and how a phased move to CompactLogix keeps downtime short.
- Parts identificationHow to Read an Allen-Bradley Catalog Number & SeriesBulletin numbers, module codes, suffixes, the series letter and firmware revision, and how each one affects whether a replacement will work.
Troubleshooting guides
- TroubleshootingControlLogix & CompactLogix Major Fault Codes ExplainedMajor fault types and codes (T01 power-up to T07 memory), where to read them in Studio 5000, minor vs major vs I/O faults, the first checks and clearing a fault safely.
- TroubleshootingSiemens S7-300/S7-400 SF & BF LEDs and Diagnostic BufferSF vs BF (and INTF, EXTF, BUSxF on the S7-400), steady vs flashing, reading the diagnostic buffer in STEP 7, and the first checks for modules, PROFIBUS, PROFINET and backup batteries.
- TroubleshootingPLC Won't Go to RUN? Allen-Bradley Mode and Fault ChecksKeyswitch and mode-switch positions, the faults that block RUN, firmware and project mismatches, missing or wrong I/O modules, forces, and the order to check them in.
- TroubleshootingAllen-Bradley PLC Battery Low: Which Battery and Safe SwapThe battery for each controller family, what the BAT or BATT LED and the T10:C10 minor fault mean, how long you have, replacing it safely, and whether the program survives.