- 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 CompactBlock I/O 1791R Repair
We offer extensive repairs for your CompactBlock I/O 1791R. We keep many spare parts in stock so that we can repair your CompactBlock I/O 1791R 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 CompactBlock I/O 1791R 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 CompactBlock I/O 1791R 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 CompactBlock I/O 1791R Repairs
Browse our catalog of repairable CompactBlock I/O 1791R parts to get a quote.
1791D-N4CV2X
The Allen-Bradley 1791D-N4CV2X CompactBlock I/O analog combination expansion module with 24 Volts DC input voltage and 100 milliamps of input current rating. It has removable screw-clamp type terminal
In Stock Ships Today
1791R-0B16P
COMPACTBLOCK 16 POINT OUTPUT BLOCK Allen Bradley Module AB with an output On-state Voltage Range of 10-30V dc and a 0.5mA max output On-state Current. Surplus and Used in Stock!
Available
1791R-16B0
COMPACTBLOCK 16 POINT INPUT BLOCK Allen Bradley Module AB with a 5V dc max. input Off-state voltage and a 10V dc min. input On-State voltage. Surplus and Used in Stock!
In Stock Ships Today
1791R-4B4P
COMPACTBLOCK 8 POINT COMBINATION BLOCK Allen Bradley Module AB with a 5V dc max. input Off-state voltage and a 10V dc min. input On-State voltage ,also a output On-state Voltage Range of 10-30V dc. Su
In Stock Ships Today
1791R-8B8P
COMPACTBLOCK 16 POINT COMBINATION BLOCK Allen Bradley Module AB with a 5V dc max. input Off-state Voltage and a 10V dc min. input On-state Voltage ,also an output On-state Voltage Range of 10-30V dc.
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1791R-8V8P
COMPACTBLOCK 16 POINT COMBINATION BLOCK Allen Bradley Module AB with a 5V dc max. input Off-state Voltage and a 10V dc min. input On-state Voltage ,also a output On-state Voltage Range of 10-30V dc. S
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About CompactBlock I/O 1791R
The CompactBlock I/O 1791R modules series is a series of stand-alone CompactBlock remote I/O base modules by Allen-Bradley that communicate and transmit data via the remote I/O link. These modules are the basis for remote I/O node systems and their compact design makes them ideal for applications with limited space and highly distributed I/O block requirements. The CompactBlock I/O 1791R modules are connected to the Allen-Bradley PLC, SLC, or SoftLogix programmable controllers via remote I/O scanner modules, and the data from these modules are easily accessible on the SLCs or SLC programmable controller’s data tables. The CompactBlock I/O 1791R module series comprises only base modules, and each module consists of I/O circuits, removable terminations, and a built-in remote I/O adapter.
The CompactBlock I/O 1791R module series are DC powered devices that require 24 Volts DC power for operation. These modules have DIP switches that can be used to set the rack addresses and desired baud rates, and they all come with removable terminal blocks (RTBs) that allow for easy installation, removal, and replacement procedures without rewiring. The CompactBlock I/O 1791R module series offers remote I/O modules with 4 to 16 input and output points (sinking/sourcing) depending on the application needs. The CompactBlock I/O 1791R modules are designed for Panel or DIN Rail installation, and they have IP 20 rated enclosures. These modules have colored light indicators that indicate the module and COM statuses, and module-to-module connection can be achieved via the use of the Allen-Bradley 1791D-15CMCBL connecting cable. The CompactBlock I/O 1791R module series has an operating temperature range between 0 and 60 degrees Celsius, and they are c-UL-us, CE, and C-TICK certified.