Why the IC697ALG230 Matters for Maintenance Engineers
When you manage a Series 90-70 PLC system, reliability and ease of service are non-negotiable. The GE Fanuc IC697ALG230 base converter module is a critical component for high-level analog input applications. This guide breaks down its specifications, setup, and maintenance from a practical engineering perspective.
Introducing the IC697ALG230 Base Converter Module
The IC697ALG230 is a base converter module from the Series 90-70 PLC platform, formerly manufactured by GE Fanuc Automation and now under Emerson Automation. It features eight differential analog inputs that you can individually configure for voltage or current signals. This module is designed to work with the IC697ALG440 voltage expander and IC697ALG441 current expander modules to increase channel count.
Key Technical Specifications and Performance
Understanding the IC697ALG230's specs helps you plan installations and troubleshoot effectively. The module accepts voltage inputs from -10 to +10 volts (default) and current inputs from 4 to 20 milliamps (default), with a maximum current range of 0.0 mA to 22.5 mA. Its analog output resolution is 16 bits, and the built-in ADC provides 14-bit resolution for digital-to-analog conversion.
Response times vary by accuracy: 30 milliseconds at 5.0%, 42 milliseconds at 1.0%, 51 milliseconds at 0.5%, and 67 milliseconds at 0.1%. The update rate is fast at 2.4 ms to 2.8 ms. Calibration is factory set at 10 volts +/- 2 mV, with voltage accuracy of +/- 0.01% of full scale and +/- 0.02% of value. Current accuracy is +/- 0.05% of full scale and +/- 0.1% of value. Linearity is +/- 0.02% of full scale over the entire negative to positive range.
The module requires 0.8 Amps (4 watts) at +5 Volts and uses a 40-pin terminal block. Its temperature coefficient is +/- 5 PPM per °C typical, +/- 15 PPM per °C maximum for voltage, and +/- 30 PPM per °C maximum for current. These specs ensure stable performance in demanding industrial environments.
Differential Wiring for Reliable Signal Integrity
The IC697ALG230 supports differential wiring, which measures the input signal by the difference between two reference wires. This configuration provides greater resistance against electromagnetic interference (EMI), making it ideal for critical systems where accurate measurement is essential. For maintenance engineers, this means fewer noise-related issues and more reliable data from sensors.
Integration with Expander Modules
To scale your analog input system, the IC697ALG230 connects to up to seven expander modules via its expansion port. Compatible modules include the IC697ALG440 voltage expander and the IC697ALG441 current expander. With the maximum number of expanders, the system can handle up to 120 inputs. Each channel has individual low-pass filters and opto-isolation from the PLC backplane, enhancing signal quality and protection.
Calibration and Maintenance Tips
Calibration is factory set, but you can verify it using the provided specs: voltage accuracy is +/- 0.01% of full scale and +/- 0.02% of value, while current accuracy is +/- 0.05% of full scale and +/- 0.1% of value. The module's MS-DOS Windows configuration software allows you to program each input and modify parameters via ladder logic. For routine maintenance, inspect the 40-terminal connector block periodically and ensure the door insert labels are clear for easy identification. Please verify current lifecycle status and availability with AutoDCSTech before ordering, as the product lifecycle status is discontinued.
Frequently Asked Questions About the IC697ALG230
What is the default input range for the IC697ALG230?
The default voltage input range is -10 to +10 volts, and the default current input range is 4 to 20 milliamps. You can configure each of the eight differential inputs individually for either signal type.
How many expander modules can I connect to the IC697ALG230?
You can connect up to seven expander modules, such as the IC697ALG440 voltage expander or IC697ALG441 current expander. This allows the system to handle a maximum of 120 analog inputs.
What is the power requirement for the IC697ALG230?
The module requires 0.8 Amps (4 watts) at +5 Volts. Ensure your PLC backplane can supply this current to avoid performance issues.
Why Choose AutoDCSTech for Your IC697ALG230 Needs
AutoDCSTech offers the GE IC697ALG230 base converter module and compatible expander modules. Our team understands the importance of reliable spare parts for maintaining your Series 90-70 systems. Contact us to check availability and get support for your industrial automation projects.
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