AI3351 Analog Input Module
Product Manual：
The AI3351 analog input module is mainly responsible for “translating” continuous analog signals on site into data that the control system can understand, and is a very core part of process control.
Module Function Overview:
Collect analog signals from on-site instruments
Convert voltage, current and other signals into digital quantities and send them to the control system
Provide real-time data foundation for control, monitoring, alarm and other functions
Supported signal types:
Current signal (e.g. 4-20 mA)
Voltage signal (such as 0-10V, depending on system configuration)
Can adapt to various industrial standard sensor outputs
Key Features:
Multi channel design to improve on-site signal access density
High precision sampling ensures stable and reliable measurement data
Isolation capability between channels effectively suppresses interference
Industrial grade design, suitable for long-term operation in high temperature and high noise environments
Function in the system:
As a bridge between the site and the controller
Collaborate with processor module, base, and communication module
Support monitoring of process variables such as temperature, pressure, flow rate, and liquid level
Typical applications:
DCS/PLC automation system
Industrial sites such as chemical, power, metallurgy, water treatment, etc
Continuous Process Control and Data Acquisition System
Summary in one sentence:
👉 AI3351 is the stable transmission of real-world signals from the field to the entrance of the control system.
AI3351 Product detailed pictures：
