IS420YAICS1B - Analog I/O Module

IS420YAICS1B - Analog I/O Module IS420YAICS1B - Analog I/O Module

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Part Number: IS420YAICS1B
Manufacturer: General Electric
Series: Mark VIeS
Product Type: Analog I/O Module
Analog inputs: 10
Technology: Surface-mount
Maximum Lead Resistance: 15Ω
Analog output current: 0-20 mA
Temperature Range: -40 to 158 degrees Fahrenheit
Compatible Firmware: V05.01 or Later
ControlST Software Suite Version: V06.01 and Later Versions
Input Converter Resolution: 16-bit ADC
Size: 15.9 cm high x 17.8 cm wide
Frequency: 50 or 60 Hz
Humidity: 5 to 95%
Repair: 3-7 Day
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States
Manua:l GEH-6855


IS420YAICS1B is an Analog I/O Module Manufactured and designed by General Electric as part of the Mark VIeS Series used in GE Distributed Turbine Control Systems. An analog I/O module, also known as an analog input/output module or simply an AIO module, is a hardware component used in various industrial and automation systems. It is designed to interface between the digital world of computers and controllers and the analog world of sensors, actuators, and other analog devices. An analog I/O module typically consists of two main sections: analog inputs and analog outputs. The inputs are used to convert analog signals from sensors, such as temperature, pressure, or voltage, into digital signals that can be processed by a computer or a controller. The outputs, on the other hand, convert digital signals from a computer or a controller into analog signals that can control actuators or analog devices like motors, valves, or variable frequency drives.

The analog inputs of an I/O module typically have a specified range, such as 0-10 volts or 4-20 mA, and a certain resolution, which determines the smallest detectable change in the analog signal. The module usually includes multiple input channels, allowing it to handle signals from multiple sensors simultaneously. Similarly, the analog outputs of an I/O module also have a specified range and resolution. They can generate analog signals that correspond to the desired control values for actuators or analog devices. The number of output channels depends on the module's design and application requirements.

Analog I/O modules are commonly used in industrial control systems, process automation, data acquisition systems, and other applications where there is a need to interface with analog devices. They are often integrated into programmable logic controllers (PLCs), distributed control systems (DCS), or other control platforms, providing a means to monitor and control analog variables within a system.


Analog I/O modules come with a variety of features and specifications that can vary based on the manufacturer and model. Here are some common features found in analog I/O modules:

Input and Output Channels: Analog I/O modules typically have multiple input and output channels. The number of channels can range from a few to several dozen, depending on the module's design and intended application. Each channel can handle one analog signal.

Input and Output Range: Analog inputs and outputs have specified voltage or current ranges. For example, an input module may support a range of 0-10 volts or 4-20 mA. Similarly, output modules may provide a range of 0-10 volts or 0-20 mA.

Resolution: The resolution of an analog I/O module determines the smallest detectable change in the analog signal. It is typically specified in terms of bits. Higher bit resolutions allow for more precise measurements and control.

Isolation: Many analog I/O modules offer channel-to-channel and/or channel-to-ground isolation. Isolation helps to protect sensitive equipment from noise, voltage spikes, and ground loops, improving system performance and safety.

Sampling Rate: The sampling rate or scan rate specifies how quickly the module can sample and process the analog input signals. It is typically measured in samples per second (SPS) or microseconds per sample (μs/sample). Higher sampling rates enable faster data acquisition and more responsive control.

Communication Protocols: Analog I/O modules support various communication protocols to interface with controllers, computers, or other devices. Common protocols include Modbus, Profibus, Ethernet/IP, DeviceNet, and others. The choice of protocol depends on the system requirements and compatibility with the existing infrastructure.

Signal Conditioning: Some analog I/O modules include built-in signal conditioning capabilities. Signal conditioning involves amplifying, filtering, or converting the analog signal to match the requirements of the application or the controller.

Mounting Options: Analog I/O modules are available in various form factors and mounting options, such as DIN rail mount, rack mount, or embedded modules. The choice of mounting option depends on the system design and installation requirements.

WOC has the largest stock of GE Distributed Turbine Control System Replacement Parts. We can also repair your faulty boards. WORLD OF CONTROLS can also supply unused and rebuilt backed-up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly get in touch with our team by phone or email.


What is the purpose of an analog I/O module?

An analog I/O module is used to interface between analog sensors, actuators, and devices and the digital world of computers or controllers. It converts analog signals into digital signals that can be processed by a computer or controller, and vice versa.

How do I connect sensors or actuators to an analog I/O module?

Analog sensors or actuators are typically connected to the analog I/O module using appropriate cables or wires. The specific connection method depends on the type of sensor or actuator being used and the module's interface requirements.

Are analog I/O modules compatible with different communication protocols?

Analog I/O modules are available with support for various communication protocols, such as Modbus, Profibus, Ethernet/IP, DeviceNet, and more. You should choose a module that is compatible with the communication protocol used in your system.