Description

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Product Overview

The Emerson 1C31205G01 is a remote node controller base designed for Emerson’s Ovation distributed control system (DCS), serving as a critical interface for managing remote I/O operations in industrial automation. This module acts as a foundational hub, supporting up to two remote node modules and interfacing with multiple I/O branches to enable precise data acquisition and control across distributed field devices. Engineered for rugged industrial environments, the Emerson 1C31205G01 operates reliably within a wide temperature range (-40°C to +85°C) and features compact, DIN-rail-mountable construction for space-efficient integration. Its advanced communication capabilities, including support for Modbus TCP/IP and Profibus DP protocols, ensure seamless data exchange with higher-level control systems, while a built-in rotary switch simplifies node addressing and configuration. By providing a scalable and resilient platform for remote I/O management, the Emerson 1C31205G01 enhances system flexibility, reduces wiring complexity, and minimizes downtime in applications ranging from power generation to chemical processing.

Technical Specifications

Parameter Name	Parameter Value
Product Model	Emerson 1C31205G01
Manufacturer	Emerson
Product Type	Remote Node Controller Base
Module Capacity	Supports 2 remote node modules
I/O Branch Connectivity	2 direct branches + 6 additional via D-connector
Node Addressing	Rotary switch for address configuration
Communication Protocols	Modbus TCP/IP, Profibus DP, RS-485
Input Voltage	24V DC or 220V AC
Power Consumption	≤10W
Operating Temperature	-40°C to +85°C
Weight	0.5kg (approx.)
Dimensions	170mm × 110mm × 40mm
Protection Level	IP66 (dust and moisture resistance)
Certifications	CE, UL, CSA
Compatibility	Emerson Ovation DCS

Main Features and Advantages

Scalable I/O Management: The Emerson 1C31205G01 provides a flexible foundation for expanding Ovation system capabilities, accommodating up to two remote node modules and interfacing with eight I/O branches in total. This scalability allows plants to distribute control logic closer to field devices—such as valves, motors, and sensors—reducing signal latency and wiring costs. The module’s rotary switch enables quick node addressing, streamlining commissioning and modifications without software tools.

Robust Communication and Integration: Supporting industry-standard protocols like Modbus TCP/IP and Profibus DP, the Emerson 1C31205G01 ensures interoperability with PLCs, SCADA systems, and third-party devices. Its RS-485 interface facilitates reliable data transmission over long distances, critical for applications like pipeline monitoring or multi-building industrial complexes. The module’s compatibility with Emerson’s Ovation ecosystem guarantees seamless data flow for real-time monitoring and control, enhancing operational coherence.

Durability and Reliability: Built with industrial-grade materials and featuring IP66 protection, the Emerson 1C31205G01 withstands harsh conditions, including temperature extremes, humidity, and vibration. Its fanless design and wide operating voltage range (24V DC to 220V AC) ensure stability in unstable power environments, while compliance with CE, UL, and CSA standards underscores its safety and quality. These attributes make it suitable for high-availability applications in sectors like oil and gas, where equipment failure can lead to significant production losses.

Application Areas

The Emerson 1C31205G01 is deployed in industries requiring distributed control and real-time data acquisition. In power generation, it manages I/O points for turbine control and grid stability systems. Oil and gas applications include remote monitoring of pipeline pressure and safety shut-off valves, leveraging its rugged design for offshore or arid environments. Water treatment facilities use the module for pump control and filter automation, while chemical plants rely on it for batch process management and reagent dosing. Its flexibility also supports HVAC control in building automation and conveyor system regulation in manufacturing, demonstrating broad utility across continuous and discrete processes.

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