SKU: IC697ALG320

GE Fanuc IC697ALG320 Series 90-70 High-Level Analog Output Module

The GE Fanuc IC697ALG320 is a high-level 4-channel analog output module for Series 90-70 PLCs. Featuring 16-bit resolution, it supports $\pm$ 10V voltage and 4-20mA current signals, providing high-speed precision control for industrial valves and drives.

Precision Control for Industrial Actuators

The GE Fanuc IC697ALG320 is a high-resolution, 4-channel analog output module engineered for the Series 90-70 PLC ecosystem. This module serves as the critical link between digital control logic and physical field devices such as variable speed drives, control valves, and analog meters. By utilizing a 16-bit Digital-to-Analog Converter (DAC), the IC697ALG320 translates digital CPU commands into highly accurate electrical signals. Because industrial processes often require simultaneous control of multiple parameters, each of the four channels can be independently configured for either voltage or current operation. Consequently, this module provides the flexibility needed to manage diverse hardware without requiring multiple specialized modules.

Technical Specifications and Load Capabilities

Manufacturer: GE Fanuc (Emerson Automation)
Model Number: IC697ALG320
Output Channels: 4 Individually Configurable Channels
Resolution: 16-bit (312.5 $\mu$ V per LSB for voltage; 0.5 $\mu$ A per LSB for current)
Voltage Range: $\pm$ 10 VDC
Current Ranges: 0 to 20 mA or 4 to 20 mA
Update Rate: 2.0 milliseconds for all channels
Power Consumption: 1.66A @ 5VDC (Backplane) + 150mA (User Supply)
Voltage Load (Resistive): 2000 Ohms minimum
Current Load (Resistive): 700 Ohms maximum
Diagnostics: Open wire (current mode), overrange, and underrange detection
Storage: Non-volatile EEPROM for factory calibration data

Scalability and Diagnostic Integrity

The IC697ALG320 optimizes system reliability through factory-calibrated precision that is stored in onboard EEPROM, ensuring consistent performance without the need for manual field adjustments. It features advanced circuit protection and diagnostic reporting, which alerts the CPU to faults such as open-wire conditions in current loops or hardware failures. Meanwhile, the module’s high-density design allows for significant system expansion; users can install up to seven modules in a single CPU rack and eight in each expansion rack. Since the configuration is handled entirely through software, maintenance teams can quickly adjust output ranges or scaling parameters without physical hardware changes. Therefore, the IC697ALG320 remains a cornerstone for complex automation tasks requiring granular control and high channel counts.

Core Industrial Applications

Proportional Valve Control: Providing precise 4-20 mA signals to modulate hydraulic or pneumatic flow rates.
Motor Speed Regulation: Sending $\pm$ 10V reference signals to Variable Frequency Drives (VFDs) for synchronized machinery.
Chart Recorders and Indicators: Driving analog displays for real-time process visualization in control rooms.
Power Plant Modulation: Controlling dampers and actuators in steam generation and turbine auxiliary systems.