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Allen Bradley CompactBlock I/O 1791P 1791P-0B16P

Product image is representative; revision or series may vary. Contact us to request a specific version.

1791P-0B16P

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The 1791P-0B16P I/O module is a distributed I/O module from the Allen-Bradley/Rockwell Automation CompactBlock I/O 1791P series. It is designed to be a standalone I/O module rated at 24 Volts DC voltage. The 1791P-0B16P distributed I/O module communicates with other devices through the Profibus DP link. This module has 16 I/O channels and it should be installed in a secondary enclosure for protection. The 1791P-0B16P distributed I/O module can be used in industrial environments with a Pollution Degree 2 pollution rating if it is properly enclosed and protected.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1791P-0B16P

ManufacturerAllen Bradley
CategoryPLCs
Product LineCompactBlock I/O 1791P
Part Number1791P-0B16P
Weight3.00 lbs (1.36 kg)
Input Count0
Output CountGroups of 4 or 8
Input TypeN/A
Output TypeSourcing
Input Off-state VoltageN/A
Input On-state VoltageN/A
Input Off-state CurrentN/A
Input On-state currentN/A
Output On-state Voltage Range10-30V DC
Output On-state Current0.5A Max.
EnclosureIP20
Power24V DC
Product Lifecycle Status*Discontinued/Obsolete

* The Allen Bradley 1791P-0B16P has been discontinued by the manufacturer, however we specialize in obsolete parts and can likely still supply surplus and/or refurbished replacement 1791P-0B16P units instead of migration.

The Allen-Bradley 1791P-0B16P is a 16-point CompactBlock sourcing output module for the PROFIBUS DB. You can group together 4 or 8 outputs in a single block. Per-output, its maximum module current is 0.5 amps and its maximum surge current for 10 seconds of 1 amps is repeatable every 2 seconds. In its on-state, it has a voltage range of 10 to 30 Volts DC, it has a maximum current of 0.5 amps, and it has a voltage drop of 0.5 Volts DC at the rated current. The off-state leakage of the 1791P-0B16P module is a maximum of 0.5 amps. It comes with its own PROFIBUS adapter and requires installation on a secondary enclosure. Features of this module include autobaud detection and a hardware watchdog function. The hardware watchdog function provides real-time information about microprocessor condition. This feature will tell you if there are any failings or damage occurrences on the microprocessor. The autobaud detection matches system baud rate automatically so there will be no crash because of an incorrect baud setting.

The 1791P-0B16P is compatible with any PROFIBUS DP scanner. This block I/O needs to be installed in a secondary enclosure. This block I/O is designed to be easy to use and is also optimized for high-speed communication and inexpensive installation. The 1791P-0B16P has various features to support the application of this module such as a removable terminal block. The removable terminal block feature allows you to install or connect any wirings to this block easily. This I/O block also has a built-in PROFIBUS adapter so you do not have to buy a separate PROFIBUS adapter. The 1791P-0B16P is certified with several certifications such as cUL and CE certifications.

Revision Part #Also known as
1791P-0B16P Ser A1791P-0B16P/A, Series A, Rev A
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