16-CH Current Input Module | GE IC694ALG223DB PACSystems RX3i
Manufacturer: GE Fanuc
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Part Number: IC694ALG223DB
Condition：New with Original Package
Product Type: Analog Input Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE Emerson IC694ALG223DB PACSystems RX3i 16-Channel Analog Current Input Module
Configured for analog current signal conversion and open-wire fault detection in PACSystems RX3i networks, the GE Emerson IC694ALG223DB (IC694ALG223 16-Channel Analog Current Input Module) provides direct physical/electrical execution. The module converts 0-20 mA, 4-20 mA, and enhanced 4-20 mA field transmitter signals into 12-bit digital values across 16 single-ended channels. Integrated optical isolation shields logic-side backplane circuits from field-side electrical transients during continuous process monitoring.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC694ALG223DB |
| Brand | GE Emerson |
| Origin | Unspecified |
| Weight | 0.57 kg |
| Dimensions | 1.3 x 5.0 x 5.0 inches (33 x 127 x 127 mm) |
| Operating Temp | -20 deg C to +60 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Power Consumption | 120 mA at 5 VDC (backplane), 65 mA at 24 VDC (isolated field supply) |
| Input Channels | 16 single-ended current input channels |
| Input Ranges | 0-20 mA, 4-20 mA, enhanced 4-20 mA |
| Resolution | 12-bit |
| Conversion Time | 13 ms per channel |
| Measurement Accuracy | +/-0.1% of full scale |
| Repeatability | +/-0.05% of span |
| Isolation | Optical isolation between field and logic circuits |
| Certifications | UL, UL HAZLOC, CE, ATEX C1D2, Zone 2, ABS, BV, DNV, GL, KRS, LR |
| Humidity | 5-95% non-condensing |
RX3i Backplane Bus Communication and I/O Density Scaling
The module executes high-density analog signal processing by accommodating 16 current loops within a single rack slot on the PACSystems RX3i backplane. Integrated analog-to-digital converters process inputs across independent channel configurations. During operation, backplane bus communication velocity enables rapid data transfer of digitized process variables and high/low threshold alarm flags to the CPU register memory within each scan cycle. Enhanced 4-20 mA diagnostics execute continuous loop continuity validation, identifying open-wire fault conditions without interrupting backplane bus transactions. Hot-swappable backplane architecture allows card removal and insertion under live rack power without disrupting adjacent I/O modules on the same bus segment.
Frequently Asked Questions
Q: How does open-wire fault detection function on the IC694ALG223DB?
A: When configured in enhanced 4-20 mA mode, internal sensing circuits detect signal drops below lower operational thresholds and trigger an open-wire fault flag sent directly to the CPU status register.
Q: What are the external field supply requirements for the analog current channels?
A: The input circuitry requires an isolated external 24 VDC supply drawing 65 mA to power loop instrumentation alongside the 120 mA drawn from the 5 VDC backplane bus.
Q: Can channels be configured with different input ranges simultaneously?
A: Yes, each of the 16 single-ended channels is independently software-configurable for 0-20 mA, 4-20 mA, or enhanced 4-20 mA input ranges.
Field Installation Guidelines
Disconnect external 24 VDC field power supplies and isolate field signal wiring before installing or servicing the module. Insert the card into the target PACSystems RX3i rack slot until the upper and lower backplane retention levers lock securely into the rack frame.
Connect current transmitter wiring to the terminal block using shielded twisted-pair cables. Route signal cables in dedicated low-voltage cable raceways, maintaining a minimum physical separation distance of 200 mm from high-voltage AC conductors and motor power leads to prevent electromagnetic interference. Terminate cable drain shields at a single earth ground point near the enclosure entry. Ensure ambient rack airflow remains unobstructed to maintain operating temperatures between -20 deg C and +60 deg C.