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We offer extensive repairs for your 1791 Block I/O. We keep many spare parts in stock so that we can repair your 1791 Block I/O 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 1791 Block I/O 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!
We can repair hardware issues and error codes with your 1791 Block I/O such as:
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The 1791 block I/O module series by Allen-Bradley is a series of compact, stand-alone, and remote I/O devices with built-in power supplies, programmable controller interfaces, input/output points, and signal conditioning circuitry for complete system control. These modules are compatible with the Allen-Bradley PLC (2, 3, and 5) controllers and the SLC-500 modular controllers, and they are connected either directly to the controllers in the PLC-3 and PLC-5 programmable controller family or they are connected by using compatible scanner modules. The 1791 block I/O modules have DC power requirements with an operating voltage range between 10 and 30 Volts DC, and they require 200 milliamps of current and a 5.5 Amps (for 10 milliseconds) inrush current to power each block. This series features modules with sinking and sourcing inputs and outputs ranging from 8 to 64 connections, and they have removable remote I/O links, input/output connectors, and terminals for external 24 Volts DC power supply that help reduce wiring costs.
The 1791 block I/O modules have dual DIP switches for setting the I/O configurations and addressing rack numbers. These switches also let the users select and adjust the transmission rates, initiate last racks and I/O groups, and select the last state and DH–485 terminator. A DH-485 port is provided in all modules for connecting to SLC controllers, and this network (DH-485) offers a maximum network communication distance of 4,000 feet. A bi-color LED indicator is also provided on every module for providing power, active, communication, and fuse blown statuses. Depending on the application requirements, multiple I/O blocks can be wired in series via the removable connectors, and a termination resistor must be wired on both ends of the wiring series. The 1791 block I/O modules can provide a maximum network distance range of 2000 to 10,000 cable-feet, and an adjustable baud rate from 57.6 Kilo-baud to 230.4 Kilo-baud.
Part Number | Description | Price | Action |
1791-0A16 | 1791 Block I/O Repair Service | Ask | Request A Quote |
1791-0A32 | 1791 Block I/O Repair Service | $764 | ![]() |
1791-0B16 | 1791 Block I/O Repair Service | $292 | ![]() |
1791-0B32 | 1791 Block I/O Repair Service | Ask | Request A Quote |
1791-16A0 | 1791 Block I/O Repair Service | $424 | ![]() |
1791-16AC | 1791 Block I/O Repair Service | $3336 | ![]() |
1791-16B0 | 1791 Block I/O Repair Service | $456 | ![]() |
1791-16BC | 1791 Block I/O Repair Service | $4320 | ![]() |
1791-24A8 | 1791 Block I/O Repair Service | $3142 | ![]() |
1791-24AR | 1791 Block I/O Repair Service | $1463 | ![]() |
1791-24B8 | 1791 Block I/O Repair Service | $680 | ![]() |
1791-24BR | 1791 Block I/O Repair Service | $532 | ![]() |
1791-32A0 | 1791 Block I/O Repair Service | $400 | ![]() |
1791-32B0 | 1791 Block I/O Repair Service | $520 | ![]() |
1791-8AC | 1791 Block I/O Repair Service | $1392 | ![]() |
1791-8AR | 1791 Block I/O Repair Service | Ask | Request A Quote |
1791-8BC | 1791 Block I/O Repair Service | $230 | ![]() |
1791-8BR | 1791 Block I/O Repair Service | $753 | ![]() |
1791-IOBB | 1791 Block I/O Repair Service | Ask | Request A Quote |
1791-IOBW | 1791 Block I/O Repair Service | $1536 | ![]() |
1791-IOBX | 1791 Block I/O Repair Service | $608 | ![]() |
1791-IOVW | 1791 Block I/O Repair Service | Ask | Request A Quote |
1791-IOVX | 1791 Block I/O Repair Service | $459 | ![]() |
1791-N4C2 | 1791 Block I/O Repair Service | $729 | ![]() |
1791-N4V2 | 1791 Block I/O Repair Service | $532 | ![]() |
1791-NDC | 1791 Block I/O Repair Service | Ask | Request A Quote |
1791-NDV | 1791 Block I/O Repair Service | $2508 | ![]() |
1791-OA16 | 1791 Block I/O Repair Service | Ask | Request A Quote |
1791-OA32 | 1791 Block I/O Repair Service | Ask | Request A Quote |
1791-OB16 | 1791 Block I/O Repair Service | Ask | Request A Quote |
1791-OB32 | 1791 Block I/O Repair Service | Ask | Request A Quote |
Part Number | Description | Price | Action |