Emerson IC694ALG223-FC RX3i Analog Current Input Module
An FC-revision, high-density RX3i module for sixteen single-ended 0–20 mA or 4–20 mA analog input channels.
Key Information
IC694ALG223-FC is the FC hardware execution of the PACSystems RX3i IC694ALG223 high-density analog current input module. The module provides sixteen single-ended current inputs for 0–20 mA or 4–20 mA field loops.
The complete FC suffix should remain in the quotation, receiving record and installed asset history. Electrical function follows the IC694ALG223 family, while revision-specific interchangeability must be checked against the rack, firmware and site change-control record.
Functions
- Acquires sixteen single-ended process-current signals in one RX3i module position.
- Supports both 0–20 mA and 4–20 mA input ranges.
- Converts field currents to controller data with documented 12-bit resolution.
- Updates the complete module data set on the documented scan schedule.
- Provides a high-density analog input option for rack-based RX3i control systems.
Specifications
| Manufacturer | Emerson / GE Fanuc |
|---|---|
| Model | IC694ALG223-FC |
| Base Catalog Number | IC694ALG223 |
| Hardware Revision | FC |
| Product Family | PACSystems RX3i |
| Product Type | High-density analog current input module |
| Input Channels | 16 single-ended |
| Input Ranges | 0–20 mA and 4–20 mA |
| Resolution | 12 bit |
| Module Update Time | 13 ms |
| Backplane Current | 120 mA at 5 VDC |
| User-Supplied Power | 65 mA at 24 VDC |
| Agency Listing | UL and UL hazardous-location listing |
| Approvals | CE Zone 2, ATEX, Class I Division 2 and listed marine approvals |
| Mounting Context | RX3i rack-based I/O installation |
| Revision Control | Match FC suffix, rack configuration and controller project |
Installation
- Export the analog configuration, scaling, alarm limits and channel references before removing IC694ALG223-FC.
- Photograph the FC label, slot, terminal assembly, commons, shield terminations and external 24 VDC wiring.
- Confirm loop polarity and isolate or safely drive every current loop before disconnecting the module.
- Restore channel ranges and scaling from the approved PAC Machine Edition project.
- Inject known currents across all used channels and verify raw values, engineering units, alarms and controller logic.
Lifecycle
- Keep the FC suffix with calibration, rack and project records.
- Trend open-loop, underrange and overrange events so wiring faults are not misclassified as module failures.
- Inspect terminal condition, loop supply and shield practices during planned maintenance.
- Do not assume BB, FC or another revision is interchangeable without the approved Emerson compatibility record.
FAQ
What information prevents an IC694ALG223-FC revision mismatch?
Send the complete IC694ALG223-FC label, rack and slot, controller model, PAC Machine Edition release, terminal photographs and the installed module revision list.
Can a 4–20 mA loop be moved to IC694ALG223-FC without checking the project?
No. Confirm the configured range, scaling, diagnostics, alarm treatment, loop supply and channel reference before transferring wiring.
How should an IC694ALG223-FC spare be acceptance-tested?
Use traceable current injection on every required channel, verify raw and scaled values, exercise alarm limits and retain the project checksum and test record.
What should be included when an IC694ALG223-FC reading is unstable?
Provide loop-supply measurements, shield and grounding details, field-device type, terminal condition, channel trend and comparison results from a known current source.
Can IC694ALG223-FC replace IC694ALG223-BB automatically?
Not from the base catalog number alone. Compare revision support, rack hardware, firmware, project validation and any manufacturer change notices before approval.
