Description
Product Description
The IC694ALG222 from GE Fanuc Emerson is a 16-channel analog voltage input module designed for the PACSystems RX3i and Series 90‑30 platforms. It supports either 16 single-ended channels or 8 differential channels, with each channel configurable for unipolar 0–10 V or bipolar –10 to +10 V ranges.
This module is factory-calibrated for precision measurement, offers configurable high and low alarm limits, and provides robust optical isolation between field wiring and the backplane. Fast update rates, high input resolution, and reliable diagnostics make the IC694ALG222 suitable for process control, industrial monitoring, and automation applications where accuracy and uptime are critical.
Key Features
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16-channel analog voltage input with single-ended or differential configuration
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Configurable 0–10 V (unipolar) or –10 to +10 V (bipolar) ranges
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Factory-calibrated for high accuracy
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Configurable high/low alarm limits for process monitoring
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Optical isolation: 250 VAC continuous, 1500 VAC for 1 minute
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Fast channel update rates: 6 ms (single-ended), 3 ms (differential)
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Compact design suitable for any RX3i I/O slot
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External isolated 24 VDC supply required on Universal Backplane
Technical Specifications
| Parameter |
Specification |
| Channels |
16 single-ended / 8 differential |
| Voltage Input Range |
0 to +10 V (unipolar), –10 to +10 V (bipolar) |
| Resolution |
2.5 mV/count (0–10 V), 5 mV/count (–10 to +10 V) |
| Accuracy |
±0.25% FS @ 25°C, ±0.5% FS over operating temperature |
| Linearity |
<1 LSB |
| Update Rate |
6 ms (16 single-ended), 3 ms (8 differential) |
| Input Impedance |
500 kΩ (single-ended), 1 MΩ (differential) |
| Input Filtering |
41 Hz (single-ended), 82 Hz (differential) |
| Isolation |
250 VAC continuous, 1500 VAC for 1 minute |
| Power Consumption |
112 mA @ +5 VDC, 41 mA @ +24 VDC (isolated) |
| Operating Temperature |
0°C to +60°C |
| Dimensions |
263 × 58 × 28 mm |
| Weight |
0.43 kg |
| Installation |
Fits any RX3i I/O slot; requires external 24 VDC on Universal Backplane |
Applications
The IC694ALG222 is ideal for precision voltage monitoring and control in applications such as industrial automation, process monitoring, machine diagnostics, and energy management. Its high-density input capability allows efficient use of I/O slots while maintaining accurate measurements in noisy industrial environments.
FAQ
Q: Can this module handle both single-ended and differential wiring?
A: Yes, channels can be individually configured as 16 single-ended or 8 differential inputs.
Q: What voltage ranges are supported?
A: Channels support 0–10 V unipolar or –10 to +10 V bipolar configurations.
Q: Does it require an external power supply?
A: Yes, when installed on a Universal Backplane, an isolated 24 VDC supply is required.
Q: How fast are the channel update rates?
A: Single-ended channels update in 6 ms, differential channels in 3 ms.
