Allen-Bradley 1791D-16B0X CompactBlock I/O Expansion Module
$123.00
$320.00
Description
Allen-Bradley 1791D-16B0X CompactBlock I/O Expansion Module
Configured for 24 VDC discrete signal acquisition in DeviceNet CompactBlock I/O networks, the Allen-Bradley 1791D-16B0X (1791D-16B0X Expansion Module) provides direct physical/electrical execution through 16 sinking input channels.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1791D-16B0X |
| Brand | Allen-Bradley |
| Product Type | CompactBlock I/O Expansion Module |
| Product Line | CompactBlock I/O 1791D |
| Origin | USA |
| Weight | 0.55 lbs |
| Communication Interface | DeviceNet |
| Input Type | Sinking discrete inputs |
| Number of Inputs | 16 inputs |
| Number of Outputs | 0 outputs |
| Input Groups | 2 groups |
| Input Signal Nominal | 24 VDC |
| Input Signal Range | 10-30 VDC |
| Input On-state Voltage | 10 VDC minimum |
| Input On-state Current | 11 mA maximum at 30 VDC |
| Input Off-state Voltage | 5 VDC maximum |
| Input Off-state Current | 1.5 mA maximum at 5 VDC |
| Enclosure Rating | IEC IP20 |
| LED Indicators | Mod/Net status red/green, Logic status green, I/O status yellow |
| I/O Exchange Modes | Poll, Cyclic, Change of State (CoS) |
| Communication Rate | 125 Kbps, 250 Kbps, 500 Kbps |
EtherNet/IP and Industrial Control Compatibility
The 1791D-16B0X uses DeviceNet communication for distributed I/O data exchange with PLC, SLC, and SoftLogix controllers through compatible DeviceNet scanners. The CompactBlock I/O architecture provides distributed I/O density scaling for remote discrete input applications.
DeviceNet communication supports Poll, Cyclic, and Change of State (CoS) I/O exchange methods. Network configuration requires matching scanner parameters, node addressing, and controller firmware compatibility with the installed CompactBlock I/O module.
Frequently Asked Questions
Q: Does the 1791D-16B0X provide output channels?
A: No. The module contains 16 sinking DC input channels and does not provide output channels.
Q: What DeviceNet communication methods are supported?
A: The module supports Poll, Cyclic, and Change of State (CoS) I/O exchange methods.
Q: How are the input channels arranged internally?
A: The 16 inputs are arranged as two groups of eight channels for field wiring organization.
Field Installation Guidelines
Install the 1791D-16B0X in an enclosure environment compatible with the IEC IP20 protection rating. Ensure adequate mechanical support and access for DeviceNet and field wiring connections.
Route DeviceNet communication cables separately from high-voltage power conductors to reduce electrical interference. Follow DeviceNet network wiring practices for cable type, termination, and node connection.
Connect 24 VDC field input devices according to the sinking input configuration. Verify sensor polarity and voltage range before applying power.
Inspect LED status indicators during commissioning to confirm module communication status, logic operation, and input channel activity.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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