Allen-Bradley
1747-L511
Allen Bradley 1747-L511 Ser B FRN 6 SLC 500 5/01 1K CPU Processor Module PLC OEM
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$19.89
PLC Processors & CPUs
328 listings · 260 in stock
328 PLC processors & CPUs listings from the brands you use, each one photographed. Free shipping to all 50 US states.
Siemens
6AV1242-0AB10
Siemens 6AV1242-0AB10 Color Video Module CP527 Simatic S5 Comm Processor Card
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$76.89
Mitsubishi
FX-16E-TB
Mitsubishi FX-16E-TB PLC Terminal Block 16 I/O Programmable Controller Module
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$12.89
Mitsubishi
FXON-8EYT
Mitsubishi FXON-8EYT Programmable Controller 5-30VDC 0.5A PLC Module Industrial
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$12.89
Allen-Bradley
2760-RB
Allen Bradley 2760-RB Series A Flexible Interface Module PLC-5 Industrial OEM
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$97.89
Omron
C40P-EDR-A
Omron C40P-EDR-A Programmable Controller I/O Expansion Unit 100-240VAC PLC OEM
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$25.89
Siemens
6AF5100-0AA70
Siemens 6AF5100-0AA70 Simatic S5 PLC Processor Module Industrial Automation OEM
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$401.89
Siemens
6ES5928-3UB11
Siemens 6ES5928-3UB11 Simatic S5 CPU928 Processor Module Card PLC Automation OEM
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$43.89
Siemens
6AA5103-0AC70
Siemens 6AA5103-0AC70 C79040-A32-C170-4-87 210B Byte PLC Processor Module Board
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$142.89
Siemens
6ES 5926-3KA12
Siemens 6ES5926-3KA12 Simatic S5 CPU926 Processor Module Industrial PLC OEM
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$61.89
Siemens
6AG1 214-1HE30-5XB0
Siemens 6AG1 214-1HE30-5XB0 SIPLUS S7-1200 CPU 1214C DC/DC/Relay Module
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$282.89
Gould Modicon
AS-203P-000
Modicon Gould AS-203P-000 Rev C7 PLC Processor Module Industrial Automation OEM
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$130.89
Industrial part
9650-128-D
Cincinnati 9650-128-D Protocol Converter Mini 7650 PLC Processor Rev D V4.36
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$46.89
Mitsubishi
Q06UDEHCPU
Mitsubishi Q06UDEHCPU MELSEC-Q CPU Module PLC Ethernet USB Universal Automation
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$64.89
Siemens
6ES5 941-7UA11
Siemens 6ES5 941-7UA11 SIMATIC S5 Central Processing Unit CPU PLC Automation OEM
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$98.89
Honeywell
36PA49-VT
Honeywell Micro Switch 36PA49-VT PLC Processor Module Controller Unit
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$13.89
Siemens
6ES7 214-1AC01-0XB0
Siemens 6ES7 214-1AC01-0XB0 Simatic S7-200 CPU 214 PLC Processor Controller
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$38.89
Refu
SS13381
Refu Electronik SS13381 02 SP00 PLC Processor Board Industrial Automation Module
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$390.89
Refu
BS10886
Refu Elektronik 006027/01 BS10886 0A SP01 PLC Processor Board Industrial Module
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$135.89
Industrial part
2K-CPU
Behr 2K-CPU Industrial Controller Module Processor Reset Status Automation OEM
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$145.89
Out of stock: we can often source these. Request a quote.
Foxboro
P0917YZ
Foxboro FCP270 P0917YZ Field Control Processor 24VDC 8W I/A Series Rev 0T 60C
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Allen-Bradley
1747-L541
Allen-Bradley 1747-L541 SLC 500 5/04 CPU Processor 16K DH+ RS232 1A 5VDC Ser C
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Siemens
6ES7340-1AH02-0AE0
Siemens 6ES7340-1AH02-0AE0 SIMATIC S7-300 CP 340 Communication Processor RS232C
Out of stock
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Siemens
6ES5 943-7UA11
Siemens 6ES5 943-7UA11 SIMATIC S5-115U CPU 943 Module 16KB RAM 1 Programmer Port
Out of stock
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Notify me when Siemens 6ES5 943-7UA11 is backGet a quote on PLC Processors & CPUs
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 PLC Processors & CPUs
- 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
- 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.
- TroubleshootingSiemens S7-1200/S7-1500 ERROR LED & Diagnostic BufferRUN/STOP, ERROR and MAINT patterns on S7-1200 and S7-1500 CPUs, the diagnostic buffer in TIA Portal, on the S7-1500 display and in the web server, and the first checks.
- 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.
- 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.