- 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 PLC 3 Repair
We offer extensive repairs for your PLC 3. We keep many spare parts in stock so that we can repair your PLC 3 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 PLC 3 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 PLC 3 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 PLC 3 Repairs
Browse our catalog of repairable PLC 3 parts to get a quote.
1775-S4BC
This module has a nominal scan time ranging from 5.5 ms to 6.5 ms. It incorporates six LED indicators for operational status monitoring and features an RS-232-C communication port for serial interfaci
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1775-S5
This communication adapter module features four I/O communication channels and can handle an impressive I/O capacity of up to 4,096 points per channel. It supports up to 16 I/O chassis per channel. Ad
In Stock Ships Today
1775-S5A
This I/O scanner communication adapter provides four separate communication channels and allows for transferring control to a backup PLC-3 through a dedicated connector. It supports a maximum I/O capa
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1775-SR
The 1775-SR module is an I/O scanner compatible with RS-232-C channels and can handle up to 2048 inputs and outputs. It incorporates a self-test indicator and connects via a 25-pin D-shell connector.
Available
1775-SR5
This adapter features a single slot design and provides a backplane voltage range of 5 to 15 VDC. It can draw 6 A at 5 VDC from the backplane and an additional 20 mA for auxiliary needs. It has built-
Available
1775-SR5A
Configured as a mountable unit, the 1775-SR5A operates within temperature limits of 0 to 40 degrees Celsius. Its storage capabilities are also aligned with similar temperature requirements. The unit f
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1775-WA
This terminal swing arm is adaptable to work with 1775-S4A and 1775-S4B scanning modules. It allows for both peer-to-peer and backup communication for the 1775-S4A scanners. Operating in environments
In Stock Ships Today
1775-WB
This terminal wiring arm provides connectivity for two remote channel connections and two remote wiring channel connections. It is compatible with up to 16 1775-RM adapters, allowing extensive system
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1775-XB
This enclosure face operates effectively within a temperature range from a minimum of 32°F to a maximum of 104°F. It also accommodates a maximum humidity of 80% without condensation for both operation
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1775-ZB
This cartridge facilitates terminal message handling and report generation, and it is compatible with data highway messaging systems. It comes equipped with a magnetic recording tape and requires 26K
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