Schneider 990NAA26320
Channels:64
Output Type:Transistors
Supply Voltage (DC):24 V
Current per Channel:0.1 Amp
Logic Type:Source
Diagnosis & Protection:Channel-by-channel diagnosis and protection
Connection Type:40-way FCN
Operating Temperature Range:-25°C to 55°C
Storage Temperature Range:-40°C to 85°C
Dimensions (mm):L x W x H: 144 x 102 x 75
Weight:0.5 kg
Experience unparalleled reliability and efficiency with the Schneider 990NAA26320 Discrete Output Module, a cornerstone of modern industrial automation systems. This module is meticulously designed to deliver precise control over up to 64 discrete output channels, ensuring smooth operation and enhanced system performance.
Crafted from industrial-grade aluminum alloy, this module is not only lightweight but also highly durable, capable of withstanding extreme conditions typically found in industrial environments. Its robust construction guarantees long-lasting service life, minimizing maintenance requirements and downtime.
The Schneider 990NAA26320 module supports RS-485 Modbus RTU communication, facilitating seamless integration with a wide range of industrial equipment and systems. This versatile interface ensures compatibility and ease of implementation in diverse automation scenarios.
Operate within a temperature range of -25°C to +55°C without compromising performance, thanks to its optimized design for industrial use. Whether you’re working in a cold warehouse or a hot manufacturing plant, this module ensures consistent functionality across various environmental conditions.
Simplicity meets sophistication with the intuitive setup and user-friendly interface of the Schneider 990NAA26320. It’s easy to integrate into existing systems, with detailed documentation and technical support available to guide you through every step of the process.

Main brand :
ABB Allen-Bradley Alstom Bently GE MOOG Schneider
Woodward HIMA Honeywell Emerson Foxboro
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•Shipping Port: Xiamen
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•Package: Original packing with cartons

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What is a DCS?
A Distributed Control System (DCS) is a sophisticated, computer-based control system designed to automate, monitor, and manage complex industrial processes. It is widely used in large-scale industrial facilities such as refineries, power plants, chemical plants, and paper mills, where precision, reliability, and scalability are critical.
How Does a DCS Work?
A DCS is composed of several interconnected components that work seamlessly to ensure efficient process control. Here’s a breakdown of its key elements:
- Controllers:
These are the “brains” of the system. Controllers receive data from sensors, process it using pre-programmed logic, and send output signals to actuators to maintain optimal process conditions. - Sensors:
Sensors act as the “eyes and ears” of the system, measuring critical physical parameters such as temperature, pressure, flow rate, and level. This real-time data is essential for accurate control. - Actuators:
Actuators are the “muscles” of the system. They execute physical actions based on controller commands, such as opening/closing valves, starting/stopping motors, or adjusting dampers. - Operator Stations:
These serve as the human-machine interface (HMI), allowing operators to monitor the process, adjust setpoints, and troubleshoot issues. Modern DCS systems often feature intuitive graphical interfaces for ease of use. - Communication Network:
The backbone of the DCS, this network connects all components, enabling seamless data exchange and coordination. It ensures that every part of the system works in harmony, even across large industrial sites.
Why is a DCS Important?
- Centralized Control with Distributed Execution: A DCS allows for centralized monitoring while distributing control functions across multiple controllers, reducing the risk of system-wide failures.
- Scalability: It can easily expand to accommodate growing operational needs.
- Reliability: Redundant systems and fail-safes ensure continuous operation, even in critical environments.
- Efficiency: Optimizes processes, reduces waste, and improves overall productivity.











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