Product Overview
The IC694ALG223A functions as a high-density analog current interface for the PACSystems RX3i platform. It converts standard industrial current signals (0-20 mA and 4-20 mA) from field transmitters into precise 12-bit digital data. This module optimizes rack space by providing 16 single-ended channels in a single slot, making it a cornerstone for complex process monitoring in chemical, water treatment, and power generation sectors. We offer this product as 100% Brand New and Original to ensure maximum system integrity.
Technical Specifications
This module interfaces directly with the RX3i backplane, utilizing high-speed bus communication for rapid data refresh.
| Feature | Specification |
| Input Channels | 16 Single-Ended |
| Input Ranges | 0 to 20 mA, 4 to 20 mA, 4 to 20 mA Enhanced |
| Resolution | 12-bit (approx. 4 µA per LSB) |
| Update Rate | 13 ms (all channels) |
| Accuracy | ±0.25% of Full Scale @ 25°C |
| Input Impedance | 250 Ohms |
| Internal Power | 120 mA @ 5 VDC |
| External Supply | 20 to 30 VDC (User Supplied) |
| Isolation | 1500 VAC between field side and logic side |
Engineering Advantages
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Fault Detection via Enhanced Range: The "Enhanced 4-20 mA" mode identifies open-wire conditions. If the signal drops below 4 mA, the module triggers a diagnostic alarm, allowing operators to distinguish between a zero-process value and a physical wiring failure.
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Space-Saving High Density: By packing 16 channels into a single RX3i slot, the IC694ALG223A reduces total hardware footprint and backplane requirements, lowering the overall cost of the control system.
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Superior Noise Rejection: A built-in 19 Hz low-pass filter suppresses high-frequency electrical noise common in motor-heavy industrial environments, ensuring stable process variables for PID loops.
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Hot-Swap Capability: Within the RX3i architecture, this module supports hot-swapping (under specific configuration), which minimizes downtime during maintenance or module replacement.
FAQs
Q: Does the IC694ALG223A require an external power supply?
A: Yes. While the module draws 120 mA from the 5V backplane bus for logic, you must provide a 24 VDC external supply to power the analog input circuitry.
Q: Can I mix 0-20 mA and 4-20 mA signals on the same module?
A: Yes. The PACSystems RX3i configuration software allows you to define the input range on a per-channel basis, providing flexibility for diverse sensor types.
Q: What is the primary difference between the "A" version and the base IC694ALG223?
A: The "A" suffix typically denotes the latest manufacturing revision or firmware update. The IC694ALG223A remains fully backward compatible with all RX3i systems supporting the ALG223 series.
Q: How does the module handle a sensor failure?
A: In "Enhanced" mode, the module detects current values below the 4 mA threshold. It reports this as an "Under Range" or "Open Wire" fault through the PLC's diagnostic table, enabling rapid troubleshooting.
What's clients say about us
Excellent Emergency Support!
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Mark Thompson
Maintenance Manager, USAReliable Source for New Spares
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
Robert Hoffmann
Engineering Lead, GermanyTop-tier Service and Quality
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.
Lucas Müller
Operations Director, GermanyRelated Products
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