PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1794-IE12 is a FLEX I/O analog input module designed for distributed industrial control architectures. This high-density unit features 12 single-ended analog input channels for process monitoring tasks. It accepts 4 to 20 milliamp current signals and plus-or-minus 10 volt direct current voltage signals. The module requires a nominal external power supply rating of 24 volts DC. Operating voltage ranges from 10.5 to 31.2 volts DC under industrial conditions.
The device draws 80 milliamperes of current directly from the FLEXBus backplane communication interface. An open-style enclosure design supports mounting onto terminal base units within a cabinet. Hardware keying aligns to keyswitch position 3 to standardize module installation. Continuous isolation voltage reaches up to 50 volts for protection against electrical disturbances. Maximum power dissipation is 1.2 watts at 31.2 volts direct current power supply input.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Product Line | Flex I/O 1794 |
|---|
| UPC | 612598320172 |
|---|
| Weight | 0.56 lbs (0.26 kg) |
|---|
| FLEXBus Current | 80 mA |
|---|
| Nominal Power Supply Rating | 24V DC |
|---|
| Nominal Power Supply Voltage Range | 10.5-31.2V DC |
|---|
| Max. Continuous Isolation Voltage | 50V |
|---|
| Max. Power Dissipation | 1.2 Watts at 31.2V DC |
|---|
| Thermal Dissipation | 4.2 BTU per Hour at 31.2V DC |
|---|
| Wire Type | Shielded Wire |
|---|
| Wiring Category | Category 2 on both the signal and power ports |
|---|
| Enclosure Type | None (Open-Style) |
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| Keyswitch Position | Position 3 |
|---|
| Operating Temperature | -4 to 140 degrees Fahrenheit |
|---|
| Storage Temperature | -40 to 185 degrees Fahrenheit |
|---|
| Max. Operating Shock | 30 G |
|---|
TECHNICAL INFORMATION
Features
- Provides 12 single-ended analog input channels on a compact distributed platform.
- Supports standard 4 to 20 mA current and +/- 10V voltage input signals.
- Delivers an analog-to-digital conversion rate of 8.0 milliseconds across channels.
- Maintains continuous isolation voltage protection rated at 50 volts.
- Consumes 80 mA current from the FLEXBus backplane.
- Configures with terminal base keyswitch set to position 3.
TECHNICAL INFORMATION
Connections / Interfaces
- FLEXBus interface provides backplane communication and draws 80 mA.
- Terminal base contacts support 12 single-ended voltage or current signal inputs.
- External power terminals connect to a 24V DC nominal power source.
TECHNICAL INFORMATION
Installation Guidelines
- Install the unit into a compatible FLEX I/O terminal base.
- Set the base keyswitch to position 3 prior to insertion.
- Use shielded cabling conforming to Category 2 standards for signal ports.
- Maintain ambient operating temperatures between -4 and 140 degrees Fahrenheit.
TECHNICAL RESOURCES
Documentation
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What input signals does the 1794-IE12 module accept?
The 1794-IE12 accepts 4-20 mA current and +/- 10V DC voltage signals across 12 single-ended channels.
What keyswitch position is required for the 1794-IE12?
Set the terminal base keyswitch to position 3 before inserting the 1794-IE12 module.
What external power supply does the 1794-IE12 require?
The module requires a nominal 24V DC external power supply with an operating range of 10.5 to 31.2V DC.
What is the reference price for an Allen-Bradley 1794-IE12?
Market observations indicate a reference price of approximately $985.00 USD. This figure is indicative market reference pricing only and is not a final quotation.
