PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1794-IF2XOF2I FLEX I/O I/O Module provides isolated analog input and output capabilities. This block transfer module interfaces analog field signals with programmable controllers having block transfer capability. Data exchange occurs via block transfer read and block transfer write instructions in ladder logic. These instructions transfer input values, operational status, and channel configuration words to and from module memory.
The hardware features two isolated analog inputs and two isolated analog outputs. Channels handle selectable signal ranges of 4 to 20 mA or plus-or-minus 10 V DC. Analog conversion utilizes a 16-bit sigma-delta converter for accurate signal processing. Factory calibration covers conversion rates of 150 Hz, 300 Hz, and 600 Hz. Operators do not need recalibration when switching between these specific conversion frequencies.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Product Line | Flex I/O 1794 |
|---|
| UPC | 612598171569 |
|---|
| Weight | 0.63 lbs (0.28 kg) |
|---|
| Inputs | 2 Isolated |
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| Resolution | 16 bits |
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| Conversion Type | Sigma Delta |
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| Input Current Terminal | 4-20mA |
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| Input Voltage Terminal | +/- 10V |
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| FlexBus Current | 50mA |
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| Outputs | 2 Isolated |
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| Output Current Terminal | 4-20mA |
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| Output Voltage Terminal | +/- 10V |
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| Thermal Dissipation | 11.3 BTU/hr. @ 31.2V DC max. |
|---|
TECHNICAL INFORMATION
Features
- Provides two isolated analog inputs and two isolated analog outputs.
- Supports both 4-20 mA current and +/- 10V DC voltage signals.
- Employs 16-bit sigma-delta analog-to-digital conversion architecture.
- Factory calibrated for 150 Hz, 300 Hz, and 600 Hz conversion rates.
- Transfers configuration and diagnostic data via block transfer instructions.
- Operates with 50 mA current draw from the FlexBus backplane.
TECHNICAL INFORMATION
Connections / Interfaces
- Only connect one voltage signal per individual analog channel.
- Terminals accept standard 4-20 mA loop current or +/- 10V DC signals.
- The unit interfaces with the FLEX I/O communication adapter across the FlexBus.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the module onto a compatible FLEX I/O terminal base.
- Check the module keyswitch position label prior to seating into the base.
- Use the removable label area to note custom application terminal designations.
TECHNICAL INFORMATION
Configuration Guidelines
- Use Block Transfer Read instructions to retrieve input values and channel diagnostic status.
- Use Block Transfer Write instructions to transmit output values and operating modes.
- Select between 150 Hz, 300 Hz, and 600 Hz without performing recalibration.
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 signal ranges does the Allen-Bradley 1794-IF2XOF2I support?
The module supports 4-20 mA current and +/- 10V DC voltage signals across two isolated inputs and two isolated outputs.
Does the 1794-IF2XOF2I require recalibration when switching conversion rates?
Recalibration is not required when switching between the factory-calibrated conversion rates of 150 Hz, 300 Hz, and 600 Hz.
How does the controller transfer data to the 1794-IF2XOF2I?
Controllers use block transfer read and block transfer write ladder instructions to exchange data and configuration words.
What is the market reference price for the 1794-IF2XOF2I?
Observed market reference pricing is approximately $359.00 USD for refurbished units. This is an indicative market reference only, not a final quotation.
