Allen-Bradley
1769-IQ16
Allen-Bradley 1769-IQ16 Ser A 16-Point Input Module 24VDC 0.115A Compact I/O PLC
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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
Dr-
ODC24
Opto 22 ODC24 DC Output I/O Module 60 VDC 1.5 A 4 Pin Industrial Automation Part
Out of stock
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Allen-Bradley
1794-TB3
Allen-Bradley 1794-TB3 Ser A FLEX I/O 3-Wire Terminal Base 120VAC 10A 5VDC 640mA
Out of stock
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Panduit
CBX4WH-AY
Panduit CBX4WH-AY Mini-Com Surface Mount Box 4 Module White ABS Electrical Part
Out of stock
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Allen-Bradley
1794-OW8
Allen-Bradley 1794-OW8 Ser. A Flex I/O 8 Point Relay Output Module 24V DC 2A PLC
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Allen-Bradley
1794-TB3
Allen-Bradley 1794-TB3 Ser A Flex I/O 3-Wire Terminal Base Unit PLC Automation
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Modicon
AS-B882-239
Modicon AS-B882-239 High Speed Counter Module 2 Point PLC AEG Gould Automation
Out of stock
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Foxboro
FCP270
Foxboro FCP270 P0917YZ Field Control Processor I/A Series DCS Module Automation
Out of stock
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Allen-Bradley
1734-OB4E
Allen-Bradley 1734-OB4E Ser C Point I/O 4-Channel 24VDC Sourcing Output Module
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Foxboro
P0917YZ
Foxboro I/A Series FCP270 P0917YZ Field Control Processor DCS Module Automation
Out of stock
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Allen-Bradley
1769-IF4
Allen-Bradley 1769-IF4 Ser B Rev 2 Compact I/O 4-Channel Analog Input Module PLC
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Siemens
6ES7 972-0BB52-0XA0
Siemens 6ES7 972-0BB52-0XA0 Simatic Profibus Bus Connector w/ PG Socket 12Mbps
Out of stock
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GE Fanuc
IC693MDL940L
GE Fanuc IC693MDL940L Series 90-30 Output Relay Module 16 Point 2A Automation
Out of stock
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Allen-Bradley
1769-OF2
Allen-Bradley 1769-OF2 Ser B Compact I/O 2-Channel Analog Output Module PLC Part
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Square D
8030 ROM-221
Square D SY/MAX 8030 ROM-221 Series F2 Output Module 120VAC 30619-502-50 PLC I/O
Out of stock
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Reliance Electric
0-57408-B
Reliance Electric 0-57408-B Power Module Interface Digital Control System PLC
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Allen-Bradley
1756-L55/A
Allen-Bradley 1756-L55/A Logix5555 CPU w/ 1756-M14/A 3.5MB Memory ControlLogix
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ABB
P-HC-BRC-30000000
ABB P-HC-BRC-30000000 BRC300 Harmony Bridge Controller 5VDC 2.0A Control Module
Out of stock
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Square D
8030 ROM-221
Square D SY/MAX 8030 ROM-221 Output Module Series F1 120VAC 2A/Output 16A/Module
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Siemens
3RA1921-1DA00
Siemens 3RA1921-1DA00 Sirius Link Module Connection Block Size S00/S0 Industrial
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Foxboro
FCP270
Foxboro FCP270 P0917YZ I/A Series Field Control Processor Module 24VDC Invensys
Out of stock
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Reliance Electric
45C69
Reliance Electric 45C69 AutoMate Dual Dry Contact Output Module 125VAC 57666-A
Out of stock
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Allen-Bradley
1746-P1
Allen-Bradley 1746-P1 Ser A SLC 500 Power Supply 85-132/170-265VAC PLC Module
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Allen-Bradley
1756-ENBT
Allen-Bradley 1756-ENBT Ser. A ControlLogix EtherNet/IP 10/100 Bridge 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.