The GE Fanuc IC697ALG230F serves as the high-precision base converter module for the Series 90-70 PLC ecosystem. This module anchors the analog subsystem, converting raw voltage (±10 VDC) and current (4–20 mA) signals from field transmitters into digital data for the CPU. It features eight differential input channels, providing superior noise rejection for critical measurements in power generation, chemical processing, and water treatment. As a base converter, the IC697ALG230F manages signal processing for itself and controls additional expander modules, making it the primary interface for large-scale analog data acquisition in complex VME-based architectures.
| Category | Specification Details |
| Model Number | IC697ALG230F |
| Series | Series 90-70 |
| Input Channels | 8 Differential Analog Inputs |
| Input Ranges | Voltage: ±10 VDC; Current: 4–20 mA (Default) |
| Resolution | 12-bit to 16-bit depending on configuration |
| Voltage Accuracy | ±0.01% of full scale; ±0.02% of value |
| Current Accuracy | ±0.05% of full scale; ±0.1% of value |
| Update Rate | 2.4 ms to 2.8 ms (system dependent) |
| Input Impedance | >10 k$\Omega$ (Voltage inputs) |
| Isolation | Galvanic isolation between channels and system backplane |
| Power Consumption | 0.8 Amps (4 watts) @ +5 Volts |
| Operating Temp | –20°C to +70°C |
| Installation | Single slot in Series 90-70 VME rack |
High-Precision Differential Architecture: The IC697ALG230F utilizes differential wiring for all 8 channels. This configuration effectively cancels out common-mode noise and electromagnetic interference (EMI), ensuring that the PLC receives accurate data even when sensor cables run near high-voltage motor leads.
Massive System Expandability: This module acts as the "master" for the analog subsystem. By interfacing with IC697ALG440 (voltage) or IC697ALG441 (current) expander modules, the system scales up to 120 analog inputs. This architecture allows facilities to expand their monitoring capabilities without consuming valuable CPU slots.
Rapid Signal Response: The module delivers update rates as fast as 2.4 ms. This low-latency performance enables the PLC to execute real-time control loops for dynamic process variables such as turbine steam pressure or high-speed flow regulation.
Industrial-Grade Thermal Resilience: With an operating temperature range extending up to +70°C, the IC697ALG230F survives in unconditioned industrial cabinets where standard commercial electronics fail.
Advanced Fault Diagnostics: The module continuously monitors for overrange, underrange, and open-wire conditions. It identifies broken 4–20 mA loops instantly, allowing the safety logic to trigger an orderly shutdown or alert maintenance personnel before process deviations occur.
Can I mix voltage and current signals on the same IC697ALG230F?
Yes. You can configure individual channels for either ±10VDC or 4-20mA loops through the software configuration, providing maximum flexibility for diverse sensor arrays.
Does this module require a separate power supply for the current loops?
The module draws its logic power (0.8A) from the PLC backplane. However, field-side current loops typically require an external 24VDC user supply to power the transmitters, depending on your wiring configuration.
How does the IC697ALG230F handle extremely high-resolution requirements?
While the base ADC provides 12-bit resolution, the module utilizes oversampling and filtering techniques to provide effective resolution up to 16 bits, significantly reducing signal noise.
Is this product "Brand New"?
We guarantee that this IC697ALG230F is 100% Brand New and Original GE Fanuc/Emerson equipment. Every unit ships in its original factory-sealed packing with a full 12-month technical warranty.
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