GE Emerson RX3i IC694ALG223A | Current Input Module 16-CH

GE Fanuc Emerson IC694ALG223A 16-Channel Analog Input Module

The GE Fanuc / Emerson IC694ALG223A is a high-density analog input module designed for PACSystems RX3i automation platforms. It converts industrial current signals from transmitters into precise digital values for accurate PLC-based monitoring and control. Moreover, its flexible range options support modern instrumentation, including enhanced 4–20 mA loops requiring open-wire detection for extra safety. Therefore, this module delivers dependable performance in applications that demand stable measurements and robust diagnostics.

Its 12-bit resolution provides reliable signal interpretation, while configurable alarms help engineers react quickly to process deviations. In addition, the module supports Zone 2 hazardous environments and carries multiple marine approvals, making it suitable for offshore and shipboard automation systems. The hot-swappable RX3i design further reduces downtime because technicians can replace the module without shutting down the process. For instance, maintenance teams can troubleshoot individual channels while the rest of the system continues operating normally.

Technical Specifications

Input Channels
• 16 single-ended current input channels
• Ranges: 0–20 mA, 4–20 mA, enhanced 4–20 mA with open-wire detection

Resolution & Speed
• 12-bit resolution
• Conversion time: 13 ms per channel

Accuracy & Stability
• Accuracy: ±0.1% of full scale
• Repeatability: ±0.05% of span

Diagnostics & Monitoring
• Open-wire detection in enhanced 4–20 mA mode
• High/low configurable alarms
• Reports module and external supply status

Power Requirements
• 120 mA @ 5 VDC 
• 65 mA @ 24 VDC 

Isolation & Safety
• Channel-to-PLC isolation
• Zone 2 hazardous-area compliant

Certifications
• UL, UL HAZLOC, CE, ATEX C1D2
• Marine approvals: ABS, BV, DNV, GL, KRS, LR

Physical Specifications
• Mounting: RX3i rack-based system
• Hot-swappable hardware
• Weight: 0.27 kg

Environmental Ratings
• Operating: 0 °C to +60 °C
• Storage: –40 °C to +85 °C
• Humidity: 5–95% non-condensing

FAQ

Q1: Does the IC694ALG223A support open-wire detection?
Yes, enhanced 4–20 mA mode provides built-in open-wire diagnostics.

Q2: Can this module be replaced while the system is running?
Yes, the RX3i hot-swap design enables removal and insertion without stopping the PLC.

Q3: Is the module suitable for hazardous locations?
It is certified for UL HAZLOC, ATEX C1D2, and Zone 2 installations.

Q4: How many channels can I configure individually?
All 16 channels can be independently configured for the required current range.

Q5: Does the module require external field power?
Yes, it uses an isolated 24 VDC field supply for input circuits.