Allen-Bradley 1794-ADN FLEX I/O DeviceNet Adapter Module
$123.00
$320.00
Description
Allen-Bradley 1794-ADN FLEX I/O DeviceNet Adapter Module
Configured for DeviceNet network interfacing and FlexBus data exchange in FLEX I/O systems, the Allen-Bradley 1794-ADN (1794-ADN DeviceNet Adapter Module) provides direct physical/electrical execution between DeviceNet scanners/controllers and local FLEX I/O terminal base units.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-ADN |
| Brand | Allen-Bradley / Rockwell Automation |
| Origin | USA |
| Weight | 0.50 lbs |
| Dimensions | 87 x 94 x 92 mm |
| Operating Temp | 0 deg C to 55 deg C |
| Power Consumption | 400 mA max @ 24 VDC |
| Product Type | DeviceNet Communication Module |
| Product Family | FLEX I/O |
| Communication Interface | DeviceNet |
| Communication Rates | 125 Kbps, 250 Kbps, 500 Kbps |
| Module Capacity | Supports up to 8 FLEX I/O modules |
| Input Voltage | 24 VDC nominal |
| Input Voltage Range | 19.2 to 31.2 VDC including 5% AC ripple |
| FlexBus Output Current | 640 mA max @ 5 VDC |
| DeviceNet Current Load | 90 mA max @ 24 VDC |
| Maximum Power Dissipation | 7.6 W @ 19.2 VDC |
| Communication Connector | 5-pin open style DeviceNet plug |
| Isolation Voltage | 50 V continuous, tested at 1,930 VDC for 60 s |
| Mounting Type | 35 mm DIN rail or direct panel mount |
| Enclosure Type | Open style |
| Status Indicators | Module/Network Status LED and I/O Status LED |
Profinet / EtherNet-IP Deterministic Networks and Industrial Communication Architecture
The 1794-ADN operates as a DeviceNet communication interface between the network scanner/controller and FLEX I/O backplane modules. The adapter manages cyclic and explicit message exchange through the DeviceNet interface while providing FlexBus communication to connected digital, analog, and specialty I/O modules.
The module converts external 24 VDC supply input into 5 VDC FlexBus power for local FLEX I/O module operation. Network node addressing and communication parameters are configured through onboard rotary switches or DeviceNet software configuration tools such as RSNetWorx for DeviceNet.
The FLEX I/O architecture supports I/O density scaling by allowing a single adapter to control multiple terminal base modules on the same DIN rail installation. DeviceNet communication operation supports selectable network speeds of 125 Kbps, 250 Kbps, and 500 Kbps.
Frequently Asked Questions
Q: How many FLEX I/O modules can the 1794-ADN adapter support?
A: The adapter supports data exchange with up to 8 FLEX I/O modules installed on the local FlexBus rail.
Q: Does the 1794-ADN provide electrical isolation between DeviceNet and FlexBus circuits?
A: The module includes isolation protection with a rated continuous isolation voltage of 50 V and factory testing at 1,930 VDC for 60 s.
Q: What mounting methods are supported for the module?
A: The unit supports installation on a 35 mm DIN rail or direct panel mounting according to system mechanical requirements.
Field Installation Guidelines
- Mount the adapter on a correctly installed 35 mm DIN rail or secured panel surface before connecting field wiring.
- Maintain separation between DeviceNet communication cables and high-voltage power conductors to reduce electrical interference.
- Connect DeviceNet wiring using the specified 5-pin open style connector and verify network polarity before energizing the system.
- Ensure the 24 VDC supply wiring uses appropriate industrial grounding and protection practices.
- Verify rotary switch settings or software-defined node parameters before placing the module into network service.
- Confirm FlexBus terminal base alignment and mechanical engagement before installing connected FLEX I/O modules.
- Use proper shield termination practices according to the DeviceNet network installation requirements.
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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