Allen-Bradley 1794-IB8 Flex I/O Digital Input Module
$123.00
$320.00
Description
Allen-Bradley 1794-IB8 Flex I/O Digital Input Module
The Allen-Bradley 1794-IB8, also cataloged as the 1794-IB8 Flex I/O Digital Input Module, operates as a dedicated hardware component for 24 VDC sinking signal acquisition within the Flex I/O 1794 series network architecture.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-IB8 |
| Brand | Allen-Bradley / Rockwell Automation |
| Product Type | Flex I/O Digital Input Module |
| Series | Flex I/O 1794 |
| Origin | United States |
| Weight | 0.15 lbs |
| Power Consumption | 3.5 W @ 31.2 VDC max |
| Input Channels | 8 current sinking inputs |
| Input Voltage Range | 10 VDC minimum to 31.2 VDC maximum on-state voltage |
| On-State Current | 2.0 mA minimum to 12.0 mA maximum |
| Off-State Voltage | 5 VDC maximum |
| Off-State Current | 1.5 mA maximum |
| Nominal Input Impedance | 4.6 kOhm |
| FlexBus Current | 20 mA @ 5 VDC |
| Mounting Type | DIN rail mount, open style |
| Enclosure Rating | IP20 |
| Supported Networks | EtherNet/IP, ControlNet, DeviceNet |
EtherNet/IP and Flex I/O Backplane Communication Characteristics
The 1794-IB8 operates as a discrete input module within the Flex I/O 1794 platform and transfers field input states through the FlexBus communication interface. The module uses a 20 mA @ 5 VDC FlexBus current load and provides eight-channel digital input density for distributed I/O architectures. Network integration supports EtherNet/IP, ControlNet, and DeviceNet communication environments through compatible Flex I/O adapter modules.
Frequently Asked Questions
Q: What type of input signals does the 1794-IB8 process?
A: The module processes 24 VDC discrete signals using eight current sinking input channels. The input circuit accepts on-state voltages from 10 VDC to 31.2 VDC.
Q: What is the FlexBus current requirement of the 1794-IB8?
A: The module requires 20 mA at 5 VDC from the FlexBus interface.
Q: Can the 1794-IB8 be installed as a standalone network device?
A: No. The module is installed as part of a Flex I/O 1794 assembly and requires a compatible adapter module for communication with EtherNet/IP, ControlNet, or DeviceNet networks.
Field Installation Guidelines
Install the 1794-IB8 module on a compatible DIN rail mounting system with appropriate spacing for field wiring access and heat dissipation. Verify that the FlexBus connection is correctly seated before applying power.
Use field wiring practices suitable for 24 VDC discrete signal circuits. Separate input wiring from high-voltage power conductors and high-noise sources to reduce electrical interference. Maintain proper grounding and shielding methods according to the installation requirements of the connected control system.
Confirm input polarity and current sinking device compatibility before connecting field devices. Verify module status indicators and controller I/O configuration after installation.
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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