EMERSON 1C31166G01

The 1C31166G01 is a Serial Link Controller module in Emerson’s Ovation series. It is primarily used to establish reliable serial communication (RS‑232/RS‑485) between the Ovation Distributed Control System (DCS), field devices, and other control systems, enabling data acquisition, signal transmission, and process control.

Key Specifications

• Supply Voltage: 24 V DC
• Operating Temperature: -40 °C to +70 °C
• Communication Protocols: Modbus, RS‑232, RS‑485. Programmable baud rate, data bits, stop bits, and parity check.
• Channels/Points: 16 channels with 3 SPDT relays, or 4–8 digital/analog input/outputs (depending on the sub-model).
• Power Consumption: Approximately 1.2 W – <10 W
• Protection Rating: IP20 (IP67 for some models)
• Dimensions/Weight: Approximately 150 mm × 110 mm × 35 mm, weight 0.5 kg
• Certifications: CE, UL, CSA, ATEX, IECEx, etc.

Product Features

• High Reliability: Industrial-grade design with electromagnetic interference resistance. Complies with IEC 61131‑2 standard and supports hot swapping.
• Modular Structure: Card-edge connectors for easy quick insertion/removal and system expansion.
• Multi-Protocol Compatibility: Supports Modbus, HART, OPC, Ethernet/IP, etc., facilitating integration with various field instruments and upper-level systems.
• Easy Configuration & Maintenance: Equipped with clear terminal blocks, LED indicators, and software diagnostic functions to reduce downtime.
• High-Precision Acquisition: Analog input resolution of 12–16 bits, sampling rate up to several thousand Hz, and accuracy of 0.05 %–0.1 %.

Structure & Composition

• Motherboard: Equipped with digital/analog I/O circuits, communication chips, and isolators.
• Connectors: Card-edge slots, RS‑232/RS‑485 interfaces, and power supply terminals.
• Indicators: Status, communication, and fault indicators.
• Enclosure: Metal or aluminum alloy housing providing dust and shock protection.

Typical Application Fields

• Industrial process control systems in oil, natural gas, chemical, metallurgy, power, water treatment, food and beverage, automotive, packaging, textile, and other industries.
• Used for field instrument signal acquisition, actuator status monitoring, PLC/DCS extended I/O, data acquisition, and remote monitoring.

Installation & Maintenance Guidelines

1. Installation: Insert the module into the card-edge slot in the Ovation control cabinet. Ensure stable 24 V DC power supply, connect RS‑232/RS‑485 cables, and properly label the terminals.
2. Wiring: Perform digital/analog signal wiring according to the module manual. Use protective terminals to prevent incorrect connections.
3. Configuration: Set communication parameters (baud rate, data bits, parity) via the Ovation configuration software and map I/O channels.
4. Debugging: Use LED indicators and software diagnostic functions to check communication status, channel faults, grounding, or short circuits.
5. Maintenance: Regularly inspect power supply, connectors, and heat dissipation. When a fault indicator is triggered, the module can be quickly removed and replaced, and the system can resume operation within seconds.

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