Allen-Bradley 1794-IE12/A FLEX I/O Analog Input Module
$123.00
$320.00
Description
Allen-Bradley 1794-IE12/A FLEX I/O Analog Input Module
The Allen-Bradley 1794-IE12/A, also cataloged as the 1794-IE12 Analog Input Module, operates as a dedicated hardware component for analog signal acquisition within the Allen-Bradley FLEX I/O system. It converts voltage and current field signals into 16-bit digital data for PLC and ControlLogix controller processing.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-IE12/A |
| Brand | Allen-Bradley / Rockwell Automation |
| Origin | United States |
| Product Type | Analog Input Module |
| Series | FLEX I/O |
| Number of Inputs | 12 single-ended analog inputs |
| Input Signal Range | 0-10 VDC, +/-10 VDC, 0-20 mA, 4-20 mA |
| Resolution | 16-bit |
| Data Format | 16-bit 2's complement signed integer |
| Conversion Type | Successive approximation |
| FlexBus Current Demand | 80 mA at 5 VDC |
| Power Consumption | 3.0 W maximum |
| Operating Temp | -20 deg C to +55 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Relative Humidity | 5% to 95% non-condensing |
| Input Impedance | Voltage: >100 kOhm; Current: approximately 250 Ohm |
| Isolation Voltage | 850 VDC field side to system side for 1 second |
| Compatible Terminal Bases | 1794-TB3G, 1794-TB3GS |
Profinet / EtherNet-IP Deterministic Network and I/O Density Scaling
The 1794-IE12/A integrates into FLEX I/O architectures through communication adapters supporting EtherNet/IP, ControlNet, DeviceNet, and Remote I/O networks. The module maintains distributed analog acquisition by transferring converted 16-bit values through the FLEXBus interface. The 12-channel input density allows cabinet-level signal concentration while maintaining independent field wiring connections through compatible terminal bases.
The module design supports modular installation where the terminal base remains connected to field wiring during module replacement. Backplane communication and power transfer are handled through the FLEX I/O bus interface with an 80 mA at 5 VDC FlexBus current demand.
Frequently Asked Questions
Q: Can the 1794-IE12/A be replaced without removing field wiring?
A: Yes. The module mounts onto compatible FLEX I/O terminal bases, allowing module replacement while field wiring remains terminated on the base assembly.
Q: What analog input signals can the module process directly?
A: The module accepts standard voltage inputs of 0-10 VDC and +/-10 VDC, as well as current inputs of 0-20 mA and 4-20 mA.
Q: What is the module conversion resolution?
A: The module converts analog input signals using a 16-bit successive approximation conversion method and provides data in a 16-bit 2's complement format.
Field Installation Guidelines
Install the 1794-IE12/A on a compatible FLEX I/O terminal base with correct mechanical alignment and secure mounting engagement. Verify that field signal wiring is separated from high-voltage power conductors to reduce electrical interference.
Use shielded signal cable where required by the installation environment. Connect cable shields according to the plant grounding standard, avoiding multiple grounding points that can create unwanted ground loops. Confirm that voltage and current input channels are wired according to the selected signal type before applying system power.
Maintain proper enclosure ventilation to keep the module within the specified operating temperature range. Verify FLEXBus power availability and communication adapter compatibility before commissioning the distributed I/O station.
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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