Allen Bradley 1756-L85ES

The Allen Bradley 1756-L85ES, recommended by Hanyit, is a HART protocol analog input module for the Rockwell Automation 1756 series PLCs. It features high-precision data acquisition and intelligent diagnostics, making it suitable for signal monitoring in industrial automation control systems. Hanyit has received positive feedback from its customers.

Q: What are the core functions and technical features of the 1756-L85ES?

A: HART Protocol Support: Compatible with the Highway Addressable Remote Transducer (HART) communication protocol, it enables two-way digital communication with HART smart instruments. Digital signals are superimposed on 4-20mA analog signals, enabling device parameter configuration, status monitoring, and fault diagnosis. This greatly facilitates production operations and improves enterprise efficiency.

High-Precision Signal Acquisition: 8 non-isolated single-ended analog input channels support 0-20mA and 4-20mA signal ranges with 16-bit resolution, an accuracy of 0.1% of full scale (@20°C), and a temperature drift coefficient of 0.05% of full scale (0-55°C), ensuring accurate data acquisition. If technicians discover any problems, they can contact Hanyite immediately.

Intelligent Diagnosis and Alarm: A built-in local microprocessor supports fault diagnosis functions such as lead break detection, overrange/underrange alarms, and remote transmitter alarms. Eight red fault indicators, eight yellow channel indicators, and one green power indicator provide real-time display of module and channel status. This robust safety feature allows personnel to identify problems at any time during use, minimizing unnecessary losses.

Flexible Configuration: Supports unipolar and bipolar signal configurations, allowing independent configuration of each channel's data format, input range, and filter parameters. Compatible with ControlNet and Ethernet/IP communication adapters (requires models such as the 1756-IF16IH), supporting ControlNet Revision 5.1 and Ethernet Revision 4.2 and above. This provides greater user convenience and flexibility.

Hardware Specifications and Compatibility

The 1756-L85ES is suitable for process control systems in industries requiring high-precision analog signal acquisition and intelligent device monitoring, such as chemical, oil and gas, energy, and water treatment. Using the HART protocol, it enables real-time monitoring of process variables such as pressure, temperature, and flow, as well as remote device management, improving system automation and maintenance efficiency. If technicians have any questions, please contact Hanyite at any time.