Allen-Bradley 1794-IF8 FLEX I/O Analog Input Module
$123.00
$320.00
Description
Allen-Bradley 1794-IF8 FLEX I/O Analog Input Module
The Allen-Bradley 1794-IF8, also cataloged as the 1794-IF8 Analog Input Module, operates as a dedicated hardware component for analog signal acquisition within the FLEX I/O 1794 system. It receives field voltage and current signals from industrial transmitters and sensors for PLC-based control applications.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-IF8 |
| Brand | Allen-Bradley |
| Product Type | FLEX I/O Analog Input Module |
| Series | FLEX I/O 1794 |
| Number of Inputs | 8 single-ended analog input channels |
| Input Type | Voltage and current analog signals |
| Voltage Input Range | +/- 10 VDC, 0 to 10 VDC, 0 to 5 VDC, 1 to 5 VDC |
| Current Input Range | 0 to 20 mA, 4 to 20 mA |
| Resolution | 16 bits (15 bits + sign) |
| Data Format | 16-bit 2's complement or unsigned binary |
| Absolute Accuracy | 0.1% Full Scale at 25 deg C |
| External DC Power Supply | 24 VDC nominal, 10.5 to 31.2 VDC operating range |
| FlexBus Current | 20 mA at 5 VDC |
| Power Consumption | 3.0 W maximum at 31.2 VDC |
| Input Impedance | Greater than 1 Mohm voltage input, 238 ohm current input |
| Isolation Voltage | 50 V continuous |
EtherNet/IP Deterministic Networks and I/O Density Scaling
The 1794-IF8 module is designed for FLEX I/O distributed control architectures where analog field measurements are transferred through industrial communication adapters to PLC platforms. The module supports integration with ControlLogix, CompactLogix, and SLC 500 systems through compatible FLEX I/O network interfaces.
The 8 channel input configuration provides I/O density scaling within FLEX I/O assemblies. Analog conversion uses 16 bit data processing with selectable voltage and current input ranges to support different field transmitter output standards.
Frequently Asked Questions
Q: What terminal base units are compatible with the 1794-IF8 module?
A: The module supports 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TB3T, and 1794-TB3TS terminal base units.
Q: Does the 1794-IF8 support isolated analog input channels?
A: The module provides 50 V continuous isolation between channel-to-system and supply-to-system circuits. The input channels are specified as single-ended.
Q: What power supply is required for the module operation?
A: The module requires a 24 VDC nominal external power supply with an operating range of 10.5 to 31.2 VDC.
Field Installation Guidelines
Install the 1794-IF8 module on a compatible FLEX I/O terminal base unit and verify the mechanical seating position before applying power.
Connect analog field wiring according to the selected voltage or current input configuration. Maintain correct polarity for voltage signals and current loop connections. Use shielded instrumentation cable where required and terminate cable shields according to the control system grounding practice.
Route analog signal cables separately from high voltage power conductors, motor wiring, and switching circuits to reduce electromagnetic interference. Verify terminal assignments, power supply polarity, and FlexBus communication connections before commissioning.
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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