Allen Bradley 1794-IE8H is a Flex I/O analog input module produced by Rockwell Automation. The following is a detailed introduction to the product:
1、 Product Overview
The 1794-IE8H module has 8 voltage/current single ended input channels for receiving analog signals, such as 0-20mA and 4-20mA. It supports the HART (High Speed Addressable Remote Sensor) communication protocol and can communicate and exchange data with various field devices. This module is suitable for various industrial automation control systems, such as process control, environmental monitoring, manufacturing automation, etc.
2、 Main features
High resolution: The 1794-IE8H has a 16 bit resolution (sometimes 12 or 11 bits plus a sign bit), which enables precise measurement and conversion of analog signals, ensuring data accuracy and stability.
Multi channel design: This module provides 8 independent input channels, each of which can receive and convert analog signals to meet multi-channel input requirements.
HART communication support: Through the built-in HART communication protocol, the 1794-IE8H can communicate with HART devices to achieve remote monitoring, configuration, and fault diagnosis functions.
Local microprocessor intelligence: The module has a built-in local microprocessor and intelligent diagnostic function, which can detect the module’s operating status, fault information, and alarm prompts.
Strong compatibility: The 1794-IE8H is compatible with various communication adapters, such as ControlNet adapters, Ethernet adapters, and ProfiBus adapters, making it easy to integrate with other control systems.
Flexible installation: This module can be installed on terminal bases such as 1794-TB3G and 1794-TB3GS, and can also be panel mounted to meet the needs of different application scenarios.
3、 Technical specifications
Input signal range: Supports multiple analog signal types such as 0-20mA, 4-20mA, 0-10VDC, ± 10VDC, etc.
Resolution: 16 bits (in unipolar mode) or 11 bits plus a sign bit (in bipolar mode).
Accuracy: At 20 ° C, the accuracy is 0.1% of full scale; Within the range of 0 ° C to 55 ° C, the accuracy drifts by 0.05% of full scale with temperature.
Power consumption: At 31.2V DC, the maximum power consumption is 3.9W.
Working temperature:- 20 ° C to 55 ° C.
Vibration: The working vibration is 2g between 10 and 500Hz.
Impact: Both work and non work impacts are 15g.
Isolation voltage: It has a rated isolation voltage of 50V (continuous).
4、 Application Fields
The 1794-IE8H module is widely used in various industrial automation fields that require precise measurement and control, such as petroleum, chemical, power, water treatment, manufacturing, etc. It can be used in conjunction with control systems such as PLC and DCS to achieve remote monitoring and control of on-site equipment.
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