1C31204G01 remote node feature module

The 1C31204G01 is a remote node feature module originally developed by Westinghouse and now part of Emerson's product line, designed for the Ovation Distributed Control System (DCS). It is commonly used as a remote I/O node, with its core function being to connect remote I/O modules to the Ovation network, ensuring stable data transmission and equipment control in industrial scenarios. Below is its detailed information:

1. Core Technical Specifications

Parameter Category	Specific Details
Communication	- Protocols: Supports RS-485 and is compatible with Modbus RTU/TCP protocols, adapting to various industrial communication scenarios.- Baud rate: 9600bps; Data format: 8 data bits, 1 stop bit, no parity.- Fiber optic communication: Supports 850nm optical modules, with a maximum communication distance of up to 2 kilometers.- Diagnostic port: Equipped with an RS-232 diagnostic port for easy fault troubleshooting.
I/O Capability	- Maximum support for 32 I/O points, and can be used with various types of I/O modules (e.g., analog, digital modules).- Note: There are discrepancies in the number of specific channels across different sources. Another version is labeled with 8 analog input channels, 4 digital output channels, and 4 relay output channels.
Power Supply & Consumption	- Power input: 24V DC, adapting to common industrial power specifications.- Power consumption: ≤2W (low-power design, reducing the overall energy consumption of the industrial control system).
Physical & Environmental Parameters	- Dimensions: Approximately 140mm × 60mm × 25mm; Weight: Only 0.3kg (compact size for easy installation).- Installation: DIN rail mounting, meeting the standardized installation requirements of industrial sites.- Operating temperature: -40°C to 70°C; Storage temperature: -40°C to 85°C.- Relative humidity: 5%–95% (non-condensing), adaptable to harsh industrial temperature and humidity environments.

2. Key Functional Features

Flexible Compatibility with Multiple ModulesThe module has strong compatibility and can be used with various types of I/O modules (e.g., analog, digital, serial I/O modules). It meets different types of data acquisition and control needs in industrial scenarios and adapts to complex automated control architectures.
Power Status MonitoringBuilt-in power monitoring circuits for 24V redundant power supplies, which can real-time monitor the operating status of the main power supply and backup power supply. Once a power fault is detected, it will promptly feed the fault signal back to the electronic module, allowing the system to quickly issue an alarm and ensuring the stable power supply of the control system.
Easy Maintenance & Installation
- Its small size and DIN rail mounting design save space in control cabinets.
- Equipped with an RS-232 diagnostic port, on-site personnel can quickly read diagnostic data and locate faults related to communication or module compatibility, reducing maintenance difficulty.

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