GE IC694ALG442 RX3i Analog I/O Module

The GE IC694ALG442 is an advanced RX3i Programmable Automation Controller (PAC) module, now manufactured by Emerson Automation after the acquisition of GE Fanuc. This mixed I/O module combines both analog input and output capabilities, providing exceptional flexibility in automation applications. It features four differential analog input channels and two single-ended analog output channels. The module supports a wide range of signal types and can be used in various industrial processes to interface with measuring instruments and field devices.

Key Features

Analog Input Channels: Four differential channels, allowing for high-precision signal measurement.
Analog Output Channels: Two single-ended channels, offering versatile output capabilities.
Configurable Signal Types: Accepts and delivers 0-10 VDC, -10 to +10 VDC , 0-20 mA, and 4-20 mA signals.
12-Bit Resolution: Ensures high accuracy for both input and output operations.
Fast Conversion Rate: Conversion rate of 2 ms for efficient signal processing.
Hot-Swap Functionality: Supports hot-swap for easy module replacement without disrupting the system.

Technical Specifications

Below are the detailed technical specifications of the GE IC694ALG442 module:

Parameter	Specification
Model	GE IC694ALG442
Product Line	RX3i PACSystem
Type	Combination Analog Input/Output Module
Number of Input Channels	4 differential analog input channels
Number of Output Channels	2 single-ended analog output channels
Analog Input Resolution	Voltage: 2.5 mV (0 to +10 V), 5 mV (-10 to +10 V)
	Current: 5 µA (0-20 mA), 0.6 µA (4-20 mA)
Analog Output Resolution	Voltage: 0.3125 mV (-10 to +10 V, 0 to +10 V)
	Current: 0.6 µA (0-20 mA), 0.5 µA (4-20 mA)
Signal Types	0-10 VDC, -10 to +10 VDC , 0-20 mA, 4-20 mA
Update Rate	3 ms (Overall update), 2 ms (Channel update)
Power Supply	20 to 30 VDC (24V DC typical)
Weight	1.00 lbs (0.45 kg)
Operating Temperature Range	0°C to 60°C
Storage Temperature	-40°C to +85°C
Voltage Ripple	10%
Mounting	RX3i backplane (local or distributed)
Module Compatibility	RX7i systems, Series 90-30 PLCs

Advanced Configuration Options

The GE IC694ALG442 module offers flexible configurations for both input and output channels. It can accept signals from various instruments and devices, making it highly adaptable to different industrial automation environments. For the analog outputs, the module has configurable output states, which help manage the system during a Stop mode or power interruption. The available output states are:

Hold: Maintains the current output value, preserving the position of connected modulating devices.
Downscale: Sets the output to the lowest value, ensuring the modulating device either fully closes or opens based on the action type (Direct or Indirect).

These options ensure that the system can remain in a safe state during system failures or interruptions, enhancing overall reliability.

Applications

The GE IC694ALG442 module is ideal for a wide range of industrial applications, including:

Process Control Systems: For accurate measurement and control of various process parameters.
Manufacturing Automation: To connect with sensors and actuators in automated production lines.
Energy Management: For efficient monitoring and control of energy usage.
Oil and Gas: Ensuring reliable operation of equipment in harsh environments.
Water Treatment: Used in systems for monitoring and controlling water quality and flow.

Conclusion

The GE IC694ALG442 is a high-performance, versatile analog I/O module that delivers precise signal handling, flexibility, and reliability. Its compatibility with RX3i PACSystem and other Emerson Automation systems ensures seamless integration in a wide array of industrial automation applications. The ability to support various signal types and output configurations makes it an excellent choice for critical control systems.