The 1791D-0B8P output module is a base output module from the Allen-Bradley/Rockwell Automation CompactBlock I/O 1791D series. It comes with 8 outputs. The 1791D-0B8P base output module can connect to an expansion input module or an expansion output module which will increase the number of I/O devices it can connect to and change the amount of bytes that it produces and consumes. It can connect to either a 16-channel expansion output module for a total of 24 outputs or to a 16-channel expansion input module for a total of 8 outputs and 16 inputs. The 1791D-0B8P base output module?s byte production and consumption ratings are 0 produced input bytes and 1 consumed output byte on its own, 1 produced input byte and 3 consumed output bytes with an expansion output module, and 3 produced input bytes and 1 consumed output byte with an expansion input module.
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Manufacturer | Rockwell Automation |
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Brand | Allen-Bradley |
Part Number/Catalog No. | 1791D-0B8P |
Inputs per Block | 0 |
Input Type | N/A |
Input Off-state Voltage | N/A |
Input On-state Voltage | N/A |
Input Off-state Current | N/A |
Input On-state Current | N/A |
Outputs per Block | 8 |
Output Type | Sourcing |
Output On-state Voltage Range | 10-30V dc |
Output On-state Current | 0.5 A max. |
DeviceNet Power | 11-25V dc |
Enclosure | IEC IP20 |
The Allen-Bradley 1791D-0B8P is a DC compact block base module I/O. The 1791D-0B8P is one of 1791D series. This module has 8 outputs and no inputs. However, you can expand the number of inputs and outputs by using an expansion module. There are two expansion schemes you can use. First, the 1791D-0B8P can be expanded into 24 outputs and 0 inputs. On this scheme, the module will consume 3 output bytes and produce 1 input byte. This extra byte is returned to or shows the health of the expansion module. Second, 1791D-0B8P can be expanded into 8 output and 16 inputs. This scheme will make the module consume 3 output bytes and 1 input byte. This expansion also can make the DeviceNet current jump to 200 mA while the voltage will be around 11 to 25 Volts DC.
The 1791D-0B8P contain several features: power supply, DeviceNet I/O adapter, and I/O circuit. The device power of this module is 10 to 30 Volts DC. Thus, it can accommodate a broad range of power supplies and many voltage levels. There is also output short-circuit protection. This feature would prevent any damage due to wiring mistakes. The  I/O block is located near the sensors and actuators. This can help you to reduce wiring cost and time needed to install the module. The 1791D-0B8P also has several product certifications such as CE marked for all applicable directives, UL, UL hazardous class I, C-UL, and C-UL hazardous class I. The enclosure of this module follows IEC IP20 standard.
Revision Part # | Also known as | |
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1791D-0B8P Ser A | 1791D-0B8P/A, Series A, Rev A | Request a quote |
1791D-0B8P Ser B | 1791D-0B8P/B, Series B, Rev B | Request a quote |
1791D-0B8P Ser C | 1791D-0B8P/C, Series C, Rev C | Request a quote |
Don't see your particular revision? Contact us now. |
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Yes. Our highly skilled technicians can repair your 1791D-0B8P. All our repairs come with a 1 Year Warranty. Please contact us for additional information about our repair process
COMPACTBLOCK I/O for DEVICENET Allen-Bradley AB with 8 Sourcing Outputs per Block.