Allen-Bradley ControlLogix Parts
PLC • 321 parts available
ControlLogix is Rockwell’s chassis-based Logix platform for mid-to-large applications. This hub covers 1756 CPUs, I/O, communication modules, power supplies, and chassis used across manufacturing and process plants. Need repair? We offer PLC repair services.
Best-selling ControlLogix parts
All best-selling parts →The ControlLogix part numbers NJT Automation sells most often, ranked by lifetime units sold.
Browse by Module Type
CPU Processors
54 parts
Power Supply DC
50 parts
Ethernet Communication
33 parts
Analog Input
16 parts
Power Supply AC
12 parts
Chassis
11 parts
Digital Output
9 parts
Analog Output
7 parts
ControlNet Communication
5 parts
Digital Input
5 parts
Relay Output
5 parts
Redundancy Module
5 parts
| Part Number | Description | Price | |
|---|---|---|---|
| 1756-L82E | Allen Bradley 1756-L82E /B ControlLogix Controller - Sealed Surplus · New | $2,899.99 USD | |
| 1756-L82E | 2025 Allen Bradley 1756-L82E Ser B ControlLogix 5580 CPU Controller · New | $2,999.99 USD | |
| 1756-L83EP | Allen Bradley 1756-L83EP /B ControlLogix 5580 Process Controller Sealed Surplus · New | $4,449.99 USD | |
| 1756-L83E | Allen Bradley 1756-L83E / 1756L83E Ser B ControlLogix 5580 Controller (sealed) · New | $4,889.99 USD | |
| 1756-L73 | Allen Bradley 1756-L73 Ser A ControlLogix 8MB Logix5573 Processor 1756L73 A · Used | $999.99 USD | |
| 1756-L81ES | Allen Bradley 1756-L81ES /B GuardLogix 5580 Safety Controller - Sealed Surplus · New | $3,499.99 USD | |
| 1756-L84ES | Allen Bradley 1756-L84ES /B GuardLogix5580 Processor - New Surplus (Sealed) · New | $4,899.99 USD | |
| 1756-OV32E | Allen Bradley 1756-OV32E Ser A ControlLogix DC Fused Sinking Output 10-30V DC · Used | $139.99 USD | |
| 1756-M16SE | Allen Bradley 1756-M16SE Ser A ControlLogix 16 Axis SERCOS Interface 1756M16SE · Used | $199.99 USD | |
| 1756-A13 | Allen Bradley 1756-A13 /B ControlLogix 13 Slot Rack Chassis 1756A13 · Used | $199.99 USD | |
| 1756-IB32 | Allen Bradley 1756-IV16 Ser A C01 F/W Rev 3.2 16Point DC Input Module - Open Box · New – Open Box | $249.99 USD | |
| 1756-A4 | Allen Bradley 1756-A4 ControlLogix 4 Slot Chassis I/O Rack 1756A4 Backplane · Used | $349.99 USD | |
| 1756-IV16 | Allen Bradley 1756-IV16 Ser A ControlLogix Digital Input Module Sealed Surplus · New | $349.99 USD | |
| 1756EN3TR | Allen Bradley 1756-EN3TR ControlLogix EtherNet/IP Dual Port Module 1756EN3TR · Used | $499.99 USD | |
| 17560F8 | Allen Bradley 1756-0F8 / 1756-OF8 Output Module Ser A 17560F8 - Sealed · New | $589.99 USD | |
| 1756-A10 | Allen Bradley 1756-A10 /C ControlLogix 10 Slot Chassis - 2016 Sealed Surplus · New | $749.99 USD | |
| 1756-L72S | ALLEN BRADLEY 1756-L72S SER B Logix 5572S Automation Controller 4M/2M · Used | $749.99 USD | |
| 1756-M08SE | Allen Bradley 1756-M08SE /B ControlLogix 8 Axis SERCOS Module - Sealed Surplus · New | $849.99 USD | |
| 1756-HIST2G | Allen Bradley 1756-HIST2G /A ControlLogix Historian ME Module 1756HIST2G SER A · Used | $1,499.99 USD | |
| 1756-OF8IH | Allen Bradley 1756-OF8IH Ser A ControlLogix 8-Point HART Analog Output Module · New – Open Box | $1,599.99 USD | |
| 1756-L75 | Allen Bradley 1756-L75 /B ControlLogix Logix5575 Processor 32MB 1756L75 Sealed · New | $2,299.99 USD | |
| 1756-L81E | Allen Bradley 1756-L81E Ser B ControlLogix 5580 Controller 3MB Memory 1756L81E · Refurbished | $2,499.99 USD | |
| 1756-L83ES | Allen Bradley 1756-L83ES /B ControlLogix 5580 GuardLogix Controller 1756L83ES · Refurbished | $2,549.99 USD | |
| 1756-RM2 | Allen Bradley 1756-RM2 /A ControlLogix Redundancy Module - Sealed Surplus · New | $2,999.99 USD | |
| 1756-L81E | Allen-Bradley 1756-L81E /B ControlLogix Processor - New Surplus (Sealed) · New | $3,249.99 USD | |
| 1756-L83ES | Allen Bradley 1756-L83ES Ser B GuardLogix 5580 Safety Controller 1756L83ES 2026 · New | $3,499.99 USD | |
| 1756-L82ES | Allen Bradley 1756-L82ES /B GuardLogix Logix 5580 Controller Sealed Surplus · New | $4,199.99 USD | |
| 1756-L84E | 2024 Allen Bradley 1756-L84E / 1756L84E Ser B ControlLogix 5580 Controller - Sealed · New | $4,499.99 USD | |
| 1756-L83ES | 2023 Allen Bradley 1756-L83ES /B GuardLogix 5580 Controller - New Surplus Sealed · New | $4,599.99 USD | |
| 1756 | ControlLogix | — | |
| 1756-0B16D | Allen Bradley 1756-0B16D / 17560B16D Ser A DC DIAG Output Module 16 Point | — | |
| 1756-0B8 | ControlLogix Module | — | |
| 1756-181E | ControlLogix Module | — | |
| 1756-183E | ControlLogix Module | — | |
| 1756-2WS | Hardy Instruments 1756-2WS Weigh Dual Scale Module, 2-Ch, 8 Load Cells/Points | — | |
| 1756-A10TSC | ControlLogix Module | — | |
| 1756-A13TSC | ControlLogix Module | — | |
| 1756-A17 | 17 SLOT CONTROLLOGIX CHASSIS Chassis, Mounting, 17 Slots, 30" x 36" x 8". | — | |
| 1756-A17TSC | ControlLogix Module | — | |
| 1756-A4TSC | ControlLogix Module | — | |
| 1756-A5TSC | ControlLogix Module | — | |
| 1756-A6TSC | ControlLogix Module | — | |
| 1756-A7 | PLC Module I/O Chassis 7 Slot 1756 I/O Modules | — | |
| 1756-CJC | Cold Junction Compensation Thermistors, 2 pcs | — | |
| 1756-CMS1B1 | Allen Bradley (Rockwell Automation) 1756 Net Priced Products - 1756-CMS1B1 | — | |
| 1756-CN2 | Allen Bradley 1756-CN2 / 1756CN2 Ser C ControlLogix Communication Module | — | |
| 1756-CN2R | Communication Interface Module Single-port Redundant-media ControlNet Interface Module | — | |
| 1756-CNB | Allen-Bradley 1756-CNB/D ControlLogix ControlNet Bridge Module E01 | — | |
| 1756-CNBK | Allen Bradley (Rockwell Automation) 1756 B57 - 1756-CNBK | — | |
| 1756-CNBR | Communication Interface Module Single-port Redundant-media ControlNet Interface Module | — |
ControlLogix buying & repair guidance
When ordering or requesting a quote, include the full catalog string from the unit's nameplate. Series and revision letters affect fit, firmware, and application compatibility.
Common ControlLogix failures
- CPU major faults after power loss or corrupted projects
- 1756 Ethernet modules (EN2T / EN3T) dropping connections under load
- Power supply failures causing chassis-wide resets or a dead rack
- I/O module channel damage from field wiring faults
Series & revision differences
L7x and L8x controllers differ in memory, motion capacity, and security features. Series suffixes on I/O and comms modules can change EDS files and firmware requirements. Match series when swapping critical modules.
Repair or replace?
Repair a ControlLogix CPU or module when the rack layout and program must stay identical. Replace when moving to GuardLogix, adding CIP Motion capacity, or retiring an obsolete L6x/L7x generation.
Still have questions?
Find answers to shipping, warranties, repairs, and more.
Frequently Asked Questions
Do you stock Allen-Bradley ControlLogix parts?
Yes. NJT Automation maintains surplus and refurbished ControlLogix inventory in Milwaukee, with additional sourcing when a specific catalog number is not on the shelf. In-stock items above can ship the same business day when ordered by the cutoff.
Can you repair ControlLogix PLC hardware?
In most cases, yes. We offer mail-in repair with testing and a 1-year warranty, with 2- and 3-year extended options available. Send photos and the catalog/series from the nameplate for a repair quote, often faster than waiting on obsolete new stock.
What if my exact series letter is not listed?
Request a quote with the full catalog string and series from the nameplate. We can confirm whether a nearby series is compatible or source the exact revision you need.
How fast can ControlLogix parts ship?
In-stock Milwaukee inventory typically ships the same business day when ordered before the cutoff, with ground and expedited options. Local pickup can be arranged. Contact us to schedule.