- Bad communication ports
- Broken selector/key switches
- Dead batteries/Bad Battery connections
- Solid or Blinking RED OK Status Light
- Solid or Blinking RED RUN Status Light
- Solid or Blinking RED Fault Status Light
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Allen Bradley ControlLogix Repair
We offer extensive repairs for your ControlLogix. We keep many spare parts in stock so that we can repair your ControlLogix as efficiently and effectively as possible. Our standard repair lead time is 2-4 weeks. However, we can often repair your unit much faster if necessary. We can repair most issues with your ControlLogix and if for some reason we cannot repair your unit we will do our best to offer a refurbished unit at the repair cost, so that you can get a working unit back as soon as possible!
- 2 Year DO Supply Warranty
- Fast repairs at low costs
- No surprises or up-charges for difficult repairs
- Standard lead time of 2-4 weeks
- Extensive quality control and testing
Get a repair quote
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's
warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Hardware issues & error codes we repair
We repair all of the following hardware issues and error codes with your ControlLogix parts.
- Bad analog inputs or ouptus
- Bad digital input or outputs
- Bad relays (stuck on/off)
- Incorrect voltages on inputs or outputs
- Incorrect current on inputs or outputs
- DF1, DH-485, DH+, Profibus, Remote I/ (RIO) failures and more!
- Intermittent communication
- Solid RED/Blinkging RED communication lights
- Devicenet, Ethernet, ControlNet, RS232 ports.
- Missing CJC Jumpers
- Incorrect readings
- Failed inputs
- Dead power supplies
- Incorrect voltage
- Broken Plastic
- Poor Connections
- Bad Slots
Browse ControlLogix Repairs
Browse our catalog of repairable ControlLogix parts to get a quote.
1756-M16SE
Allen Bradley ControlLogix Sercos Servo Module with 16 Axes per Module
In Stock Ships Today
1756-M16SEK
This module uses SERCOS communication with a data rate of 4/8 Mbps. It dissipates 5 watts of power and features an open enclosure design. The current draw at 24 V is recorded at 2.5 mA, and it has CE
In Stock Ships Today
1756-M2
The 1756-M2 expansion memory module from the 1756 ControlLogix series is made by Allen-Bradley/Rockwell Automation. The module has an open enclosure and it features 1 megabyte of memory capacity. The
In Stock Ships Today
1756-M22
The 1756-M22 memory board module enhances the memory capacity of ControlLogix systems by providing 750 KB of nonvolatile memory. It functions within an installation altitude of 2000 meters and support
In Stock Ships Today
1756-M23
This module is designed for open-style enclosures, with no specific housing. It operates effectively within a temperature range of 0°C to 60°C. In terms of shock resistance, it can endure 30 G in oper
In Stock Ships Today
1756-M24
This non-volatile memory board has a storage capacity of 3.5 MB. It maintains its functionality across a temperature span of 0 to 60 degrees Celsius for operation and -40 to 85 degrees Celsius for sto
In Stock Ships Today
1756-M3
The 1756-M3 expansion memory module has a capacity of 2 megabytes and the open type of enclosure typical for such components. This Bulletin 1756 unit is used within the ControlLogix environment and it
In Stock Ships Today
1756-MVI
Allen Bradley ControlLogix Multi Vendor Interface Module with Configurable Communication Rate
In Stock Ships Today
1756-MVID
The 1756-MVID multi-vendor interface module by Allen-Bradley/Rockwell Automation is part of the ControlLogix 1756 product series. The power dissipation of the unit is 4 Watts and the backplane current
In Stock Ships Today
1756-N2
Allen Bradley ControlLogix Slot Filler Module with Slot Filler Function
In Stock Ships Today
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About ControlLogix
The ControlLogix series drives offer control platforms for high-performance industrial systems. The Allen-Bradley manufactured ControlLogix series drives can perform sequential, process, or motion control in any combinations. These drives create a high-performance, multiprocessing platform. They use cost-effective distributed control systems for different process applications. The drives are cost-competitive packages and they come with several safety features. A ControlLogix system consists of a standalone controller and input/output modules inside a chassis. The body has a conformal coating which helps to extend the life of the product in harsh industrial environments. The ControlLogix drives can withstand temperature ranges from 0 and 60 degrees Celsius.
The ControlLogix architecture provides a wide range of input and output modules for many applications like high-speed digital process control. The devices in this series use the HART smart instrumentation features. This is an open protocol that is designed to connect analog devices. These drives come with removable terminal blocks which provide interconnection between the plant wiring. For internal connectivity, the devices use Ethernet/IP, DeviceNet, ControlNet, SynchLink, Data Highway Plus, and remote input/output modules. The ControlLogix series drives are available in different variants that come with different outputs, different operating voltages, operating voltage ranges, maximum output currents, power dissipations, input types, and input resolution. The ControlLogix drives are also available with different power consumption levels. The controllers can monitor and control I/O across the backplane and over network links. The ControlLogix drives can also be used to bridge and route the control and information data. The baud rate of the controllers varies up to a maximum of 12 Mbps. The maximum thermal dissipation of the controllers is 15.4 BTU per hour. Both lithium-ion and externally mounted batteries are supported by the ControlLogix controller series.
Common issues with ControlLogix modules include:
Plastics, power supply, enclosure and mounting
Mounting clips
Card enclosure
Broken connection pins
Power supply switch
Power supply plastics
Dead backplane
Rack plastics
Din rail clips
Doors
Connecting tabs (compact logix)
Terminal block
Node address switches
Communications
Faulty key switch
DH+ port
Ethernet port
Firmware update
RS-232 ports
Lights
LED indicators
Solid fault light
Flashing fault light
I/O
Discrete output replacement relay or TRIAC
Discrete input replacement
Analog out
Analog in
RTD channel repair
Fused input/output replacement
fault/error codes
Fatal Error
Major faults
Recoverable faults