Allen-Bradley 1794-IE8 Flex I/O Analog Input Module
$123.00
$320.00
Description
Allen-Bradley 1794-IE8 Flex I/O Analog Input Module
The Allen-Bradley 1794-IE8, also cataloged as the 1794-IE8 Analog Input Module, operates as a dedicated hardware component for analog signal acquisition within the Allen-Bradley Flex I/O 1794 system. It provides eight single-ended non-isolated input channels with selectable unipolar and bipolar resolution processing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-IE8 |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 0.24 lbs |
| Dimensions | 5.4 cm x 9.4 cm x 4.57 cm |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | 3 W maximum at 31.2 VDC |
| Product Type | Analog Input Module |
| Product Series | Flex I/O 1794 |
| Number of Inputs | 8 single-ended, non-isolated inputs |
| Resolution | 12 bits unipolar; 11 bits plus sign bipolar |
| Conversion Type | Successive approximation |
| Conversion Rate | 256 us all channels |
| Supply Voltage | 24 VDC nominal |
| Supply Voltage Range | 19.2 to 31.2 VDC |
| Supply Current | 60 mA at 24 VDC |
| Flexbus Current | 20 mA |
| Data Format | Left justified, 16 bit 2's complement |
| Isolation Voltage | 850 VDC tested for 1 s between user power and system |
| Channel Isolation | No isolation between individual channels |
| Maximum Overload | 30 V continuous or 32 mA continuous, one channel at a time |
Profinet / EtherNet-IP Industrial Control Compatibility
The 1794-IE8 is part of the Flex I/O 1794 modular I/O architecture and exchanges processed analog data through the installed terminal base and adapter communication path. The module architecture supports I/O density scaling by adding multiple signal acquisition modules within the Flex I/O platform while maintaining a compact remote I/O installation format. Configuration depends on the selected Flex I/O adapter, controller platform, and system firmware compatibility.
Frequently Asked Questions
Q: Does the 1794-IE8 provide channel-to-channel electrical isolation?
A: No. The module provides isolation between user power and system circuits tested at 850 VDC for 1 s, but individual input channels are not isolated from each other.
Q: What terminal base units are compatible with the 1794-IE8 module?
A: The module is installed on 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, and 1794-TB3TS terminal base units.
Q: What analog conversion method is used by the module?
A: The 1794-IE8 uses successive approximation conversion with a 256 us conversion rate across all channels.
Field Installation Guidelines
Install the 1794-IE8 module on the specified Flex I/O terminal base unit with the module securely seated into the terminal connection interface. Verify that field wiring matches the configured analog input signal type and polarity requirements before energizing the system.
Maintain separation between analog signal wiring and high-voltage or high-current conductors to reduce electrical interference. Connect cable shields according to the control system grounding practice, avoiding unintended ground loops. Confirm the 24 VDC supply polarity and verify that the module power indicator operates correctly after installation.
For systems containing multiple analog modules, check backplane loading, adapter capacity, and controller configuration before adding additional I/O nodes.
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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