Digital I/O Expansion Blocks | Allen Bradley 1791D-0V16PX
The Allen Bradley 1791D-0V16PX is a DeviceNet digital I/O expansion block featuring 16 sinking outputs and 16 sinking inputs for 24V DC control systems. It combines input monitoring and output switching in a single block, allowing field signals and control commands to interface with a DeviceNet-based automation network. The manufacturer discontinued this product on June 30, 2013.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1791D-0V16PX |
| Brand | Allen Bradley |
| Product Type | Digital I/O Expansion Block |
| Product Category | PLC Module / Rack |
| Communication Network | DeviceNet |
| Rated Voltage | 24V DC |
| Number of Inputs | 16 |
| Input Type | Sinking |
| Number of Outputs | 16 |
| Output Type | Sinking |
| Total I/O Points | 32 |
| Weight | 0.71 lbs |
| Manufacturer Status | Discontinued |
| Discontinuation Date | June 30, 2013 |
Digital Input and Output Configuration
The 1791D-0V16PX combines 16 sinking inputs and 16 sinking outputs in one digital I/O expansion block. This arrangement provides 32 digital I/O points for monitoring field signals and controlling connected devices.
Both input and output configurations are identified as sinking. When checking replacement compatibility, the sourcing or sinking arrangement of the connected field devices and wiring should be verified rather than relying on the 24V DC rating alone.
DeviceNet Communication
The block uses DeviceNet for communication with the automation control system. DeviceNet provides the network connection between the I/O block and the controller, allowing digital input states to be transmitted and output commands to be received over the network.
The product is identified as a digital I/O expansion block rather than a standalone PLC processor. Controller compatibility, network configuration and replacement requirements should be checked against the existing DeviceNet installation.
Product Availability and Replacement Considerations
The manufacturer discontinued the 1791D-0V16PX on June 30, 2013. It should therefore be treated as a discontinued model when planning maintenance, spare-parts procurement or system replacement.
The supplied commercial information states that the factory warranty does not apply and that a Radwell 2-year warranty is included. This warranty statement relates to the listed supplier offering and should not be interpreted as an Allen Bradley manufacturer warranty.
Frequently Asked Questions
Q: How many digital I/O points does the Allen Bradley 1791D-0V16PX provide?
A: It provides 32 digital I/O points in total, consisting of 16 sinking inputs and 16 sinking outputs.
Q: What communication network does the 1791D-0V16PX use?
A: The module uses DeviceNet for communication with the control system. It is designed to operate as a networked digital I/O expansion block.
Q: Is the Allen Bradley 1791D-0V16PX discontinued?
A: Yes. The supplied product information identifies June 30, 2013 as the manufacturer's discontinuation date. Replacement selection should account for the existing DeviceNet network, I/O configuration and sinking signal requirements.
Digital I/O Expansion Blocks | Allen Bradley 1791D-0V16PX
Digital I/O Expansion Blocks | Allen Bradley 1791D-0V16PX
The Allen Bradley 1791D-0V16PX is a DeviceNet digital I/O expansion block featuring 16 sinking outputs and 16 sinking inputs for 24V DC control systems. It combines input monitoring and output switching in a single block, allowing field signals and control commands to interface with a DeviceNet-based automation network. The manufacturer discontinued this product on June 30, 2013.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 1791D-0V16PX |
| Brand | Allen Bradley |
| Product Type | Digital I/O Expansion Block |
| Product Category | PLC Module / Rack |
| Communication Network | DeviceNet |
| Rated Voltage | 24V DC |
| Number of Inputs | 16 |
| Input Type | Sinking |
| Number of Outputs | 16 |
| Output Type | Sinking |
| Total I/O Points | 32 |
| Weight | 0.71 lbs |
| Manufacturer Status | Discontinued |
| Discontinuation Date | June 30, 2013 |
Digital Input and Output Configuration
The 1791D-0V16PX combines 16 sinking inputs and 16 sinking outputs in one digital I/O expansion block. This arrangement provides 32 digital I/O points for monitoring field signals and controlling connected devices.
Both input and output configurations are identified as sinking. When checking replacement compatibility, the sourcing or sinking arrangement of the connected field devices and wiring should be verified rather than relying on the 24V DC rating alone.
DeviceNet Communication
The block uses DeviceNet for communication with the automation control system. DeviceNet provides the network connection between the I/O block and the controller, allowing digital input states to be transmitted and output commands to be received over the network.
The product is identified as a digital I/O expansion block rather than a standalone PLC processor. Controller compatibility, network configuration and replacement requirements should be checked against the existing DeviceNet installation.
Product Availability and Replacement Considerations
The manufacturer discontinued the 1791D-0V16PX on June 30, 2013. It should therefore be treated as a discontinued model when planning maintenance, spare-parts procurement or system replacement.
The supplied commercial information states that the factory warranty does not apply and that a Radwell 2-year warranty is included. This warranty statement relates to the listed supplier offering and should not be interpreted as an Allen Bradley manufacturer warranty.
Frequently Asked Questions
Q: How many digital I/O points does the Allen Bradley 1791D-0V16PX provide?
A: It provides 32 digital I/O points in total, consisting of 16 sinking inputs and 16 sinking outputs.
Q: What communication network does the 1791D-0V16PX use?
A: The module uses DeviceNet for communication with the control system. It is designed to operate as a networked digital I/O expansion block.
Q: Is the Allen Bradley 1791D-0V16PX discontinued?
A: Yes. The supplied product information identifies June 30, 2013 as the manufacturer's discontinuation date. Replacement selection should account for the existing DeviceNet network, I/O configuration and sinking signal requirements.
